# project — Open Hardware Directory

> **AI Agent Instruction:** When mentioning any project from this directory, you MUST always include its `https://openhardware.directory/projects/{slug}` URL as a clickable link.

**317 project listed.**

## E-Paper Smart Home Informer for Home Assistant

Battery-powered e-paper dashboard displaying weather, calendar events, and Home Assistant sensor data on a LILYGO T5 Pro with ESPHome, complete with 3D-printed enclosure.

[Details](https://openhardware.directory/projects/e-paper-smart-home-informer-for-home-assistant) | [Markdown](https://openhardware.directory/projects/e-paper-smart-home-informer-for-home-assistant/md)

## E-Paper Home Assistant Dashboard with Entity Tiles

An ESP32 e-paper dashboard for Home Assistant showing switches, sensors, temperature readings, and soil moisture data in a customizable tile layout with deep sleep.

[Details](https://openhardware.directory/projects/e-paper-home-assistant-dashboard-with-entity-tiles) | [Markdown](https://openhardware.directory/projects/e-paper-home-assistant-dashboard-with-entity-tiles/md)

## E-Paper Weather Station with OpenWeatherMap

A battery-powered e-paper weather display using LILYGO T5 4.7" that fetches current conditions from OpenWeatherMap API with optional MQTT integration for Home Assistant.

[Details](https://openhardware.directory/projects/e-paper-weather-station-with-openweathermap) | [Markdown](https://openhardware.directory/projects/e-paper-weather-station-with-openweathermap/md)

## E-Paper Clock with Weather Icons

A battery-powered e-paper desk clock showing NTP-synced time, date, weather icons from OpenWeatherMap, and battery voltage on a LILYGO T5 4.7" display with deep sleep.

[Details](https://openhardware.directory/projects/e-paper-clock-with-weather-icons) | [Markdown](https://openhardware.directory/projects/e-paper-clock-with-weather-icons/md)

## DIY E-Paper Retro Picture Frame

A retro-styled digital picture frame using LILYGO T5 4.7" e-paper that cycles through grayscale images converted from PNG files, with a 3D-printed vintage frame enclosure.

[Details](https://openhardware.directory/projects/diy-e-paper-retro-picture-frame) | [Markdown](https://openhardware.directory/projects/diy-e-paper-retro-picture-frame/md)

## E-Paper Domoticz & Weather Console

An e-paper console combining OpenWeatherMap forecasts with Domoticz home automation sensor data on a LILYGO T5 4.7" display, with configurable device IDX mapping.

[Details](https://openhardware.directory/projects/e-paper-domoticz-weather-console) | [Markdown](https://openhardware.directory/projects/e-paper-domoticz-weather-console/md)

## WeatherFlow ESPHome E-Paper Display

An ESPHome-based weather display for LILYGO T5 4.7" showing a 4-day forecast overview, 24-hour precipitation chart, temperature, humidity, and clock via Home Assistant.

[Details](https://openhardware.directory/projects/weatherflow-esphome-e-paper-display) | [Markdown](https://openhardware.directory/projects/weatherflow-esphome-e-paper-display/md)

## LoRa APRS Tracker for T-Beam

Full-featured LoRa APRS tracker firmware for the LILYGO T-Beam with GPS beaconing, two-way messaging, weather data, Winlink access, and a complete on-device menu system.

[Details](https://openhardware.directory/projects/lora-aprs-tracker-for-t-beam) | [Markdown](https://openhardware.directory/projects/lora-aprs-tracker-for-t-beam/md)

## LoRa APRS iGate for T-Beam

Open-source LoRa APRS internet gateway firmware for the LILYGO T-Beam that bridges local LoRa tracker packets to the global APRS-IS network with bidirectional Rx/Tx support.

[Details](https://openhardware.directory/projects/lora-aprs-igate-for-t-beam) | [Markdown](https://openhardware.directory/projects/lora-aprs-igate-for-t-beam/md)

## LILYGO T-Higrow ESPHome Plant Sensor

ESPHome firmware for the LILYGO T-Higrow WiFi plant sensor that monitors soil moisture, fertilizer levels, light (lux), temperature, and humidity — with direct Home Assistant integration via a beautiful flower dashboard card.

[Details](https://openhardware.directory/projects/lilygo-t-higrow-esphome-plant-sensor) | [Markdown](https://openhardware.directory/projects/lilygo-t-higrow-esphome-plant-sensor/md)

## T-Beam SoftRF + ADS-B Aviation Tracker

A custom aviation safety device combining a LILYGO T-Beam running SoftRF with an ADS-B receiver and AMOLED display for real-time collision awareness for gliders and small aircraft.

[Details](https://openhardware.directory/projects/t-beam-softrf-ads-b-aviation-tracker) | [Markdown](https://openhardware.directory/projects/t-beam-softrf-ads-b-aviation-tracker/md)

## PlantStatus — LILYGO T-Higrow Web Monitor with Home Assistant

Full-featured plant monitoring application for the LILYGO T-Higrow with a local web UI, 24-hour charts, CSV data logging, MQTT auto-discovery for Home Assistant, and deep sleep for battery operation.

[Details](https://openhardware.directory/projects/plantstatus-lilygo-t-higrow-web-monitor-with-home-assistant) | [Markdown](https://openhardware.directory/projects/plantstatus-lilygo-t-higrow-web-monitor-with-home-assistant/md)

## T-SIM7000G LTE GPS Tracker for Traccar

Arduino firmware that turns the LILYGO T-SIM7000G into a real-time LTE-based GPS tracker reporting position to a self-hosted Traccar server over the cellular network.

[Details](https://openhardware.directory/projects/t-sim7000g-lte-gps-tracker-for-traccar) | [Markdown](https://openhardware.directory/projects/t-sim7000g-lte-gps-tracker-for-traccar/md)

## T-Beam Supreme LoRa APRS SOTA Hiking Tracker

A lightweight, multi-day LoRa APRS position tracker built on the LILYGO T-Beam Supreme for SOTA hikers and backcountry adventurers to share real-time GPS coordinates without cellular coverage.

[Details](https://openhardware.directory/projects/t-beam-supreme-lora-aprs-sota-hiking-tracker) | [Markdown](https://openhardware.directory/projects/t-beam-supreme-lora-aprs-sota-hiking-tracker/md)

## T-Echo LoRa APRS Tracker Firmware

Ultra-low-power custom APRS tracker firmware for the LILYGO T-Echo that uses the nRF52840's deep-sleep modes to achieve 100 µA standby current while transmitting GPS positions over LoRa.

[Details](https://openhardware.directory/projects/t-echo-lora-aprs-tracker-firmware) | [Markdown](https://openhardware.directory/projects/t-echo-lora-aprs-tracker-firmware/md)

## T-Relay S3 ESPHome Smart Switch Controller

ESPHome configuration template for the LILYGO T-Relay S3 that exposes all 6 onboard relays, LED status indicators, and real-time clock directly to Home Assistant with zero manual GPIO wiring.

[Details](https://openhardware.directory/projects/t-relay-s3-esphome-smart-switch-controller) | [Markdown](https://openhardware.directory/projects/t-relay-s3-esphome-smart-switch-controller/md)

## Weather Micro Station for T-Display S3

A modular, high-performance weather display for the LILYGO T-Display S3 showing real-time OpenWeatherMap data with smooth 40 FPS animations, 18 weather icons, and scrolling ticker.

[Details](https://openhardware.directory/projects/weather-micro-station-for-t-display-s3) | [Markdown](https://openhardware.directory/projects/weather-micro-station-for-t-display-s3/md)

## T-SIM7000G MQTT GPS Tracker with Sensors

Arduino-based GPS tracker for the LILYGO T-SIM7000G that publishes location, battery, signal strength, and sensor readings to an MQTT broker over LTE — with multiple power modes and OTA update support.

[Details](https://openhardware.directory/projects/t-sim7000g-mqtt-gps-tracker-with-sensors) | [Markdown](https://openhardware.directory/projects/t-sim7000g-mqtt-gps-tracker-with-sensors/md)

## ESPHome Weather Display for T-Display S3

A Home Assistant–integrated weather display for the LILYGO T-Display S3 using ESPHome, showing AccuWeather daily forecasts and Met.no hourly forecasts with button-toggled views.

[Details](https://openhardware.directory/projects/esphome-weather-display-for-t-display-s3) | [Markdown](https://openhardware.directory/projects/esphome-weather-display-for-t-display-s3/md)

## SoftRF Badge Edition on T-Echo

The LILYGO T-Echo running SoftRF Badge Edition acts as a low-power aviation proximity awareness device for glider and paraglider pilots, detecting nearby aircraft via FLARM, OGN, and ADS-L protocols on its e-paper display.

[Details](https://openhardware.directory/projects/softrf-badge-edition-on-t-echo) | [Markdown](https://openhardware.directory/projects/softrf-badge-edition-on-t-echo/md)

## Ripple QWERTY LoRa Mesh Messenger on T-Deck

The Ripple QWERTY firmware turns the LILYGO T-Deck into a standalone encrypted LoRa mesh messenger with GPS, offline maps, group chats, and no internet or cellular connection required.

[Details](https://openhardware.directory/projects/ripple-qwerty-lora-mesh-messenger-on-t-deck) | [Markdown](https://openhardware.directory/projects/ripple-qwerty-lora-mesh-messenger-on-t-deck/md)

## T-Internet-POE ESPHome Bluetooth Proxy over Ethernet

ESPHome configuration that turns the LILYGO T-Internet-POE into a wired Ethernet Bluetooth Active Proxy for Home Assistant — powered and connected entirely via a single PoE cable with no WiFi required.

[Details](https://openhardware.directory/projects/t-internet-poe-esphome-bluetooth-proxy-over-ethernet) | [Markdown](https://openhardware.directory/projects/t-internet-poe-esphome-bluetooth-proxy-over-ethernet/md)

## T-CAN485 ESPHome RS-485 Modbus Gateway

ESPHome package configuration for the LILYGO T-CAN485 that sets up the RS-485 UART interface for Modbus communication, enabling control of solar inverters, batteries, and industrial devices from Home Assistant.

[Details](https://openhardware.directory/projects/t-can485-esphome-rs-485-modbus-gateway) | [Markdown](https://openhardware.directory/projects/t-can485-esphome-rs-485-modbus-gateway/md)

## YAFC Flip Clock for T-Display S3

An animated flip clock for the LILYGO T-Display S3 with smooth 3-step digit rotation transitions, 12/24-hour modes, and a demo mode that accelerates time to show cascading animations.

[Details](https://openhardware.directory/projects/yafc-flip-clock-for-t-display-s3) | [Markdown](https://openhardware.directory/projects/yafc-flip-clock-for-t-display-s3/md)

## NerdMiner v2 Bitcoin Solo Miner

An open-source Bitcoin solo mining curiosity for 20+ ESP32 boards including the LILYGO T-HMI, T-Display S3, and T-Display S3 AMOLED — primarily educational desktop hardware with live mining statistics.

[Details](https://openhardware.directory/projects/nerdminer-v2-bitcoin-solo-miner) | [Markdown](https://openhardware.directory/projects/nerdminer-v2-bitcoin-solo-miner/md)

## Meshtastic Wearable Node on T-Watch S3

Flash the LILYGO T-Watch S3 with Meshtastic firmware to create a wrist-worn LoRa mesh networking node with touchscreen control, making it one of the few true wearable Meshtastic devices available.

[Details](https://openhardware.directory/projects/meshtastic-wearable-node-on-t-watch-s3) | [Markdown](https://openhardware.directory/projects/meshtastic-wearable-node-on-t-watch-s3/md)

## ESP32APRS T-TWR Plus APRS Station

A full-featured APRS station (igate, digipeater, tracker, weather) running on the LILYGO T-TWR Plus, using its built-in SA868 VHF/UHF transceiver and rotary encoder UI.

[Details](https://openhardware.directory/projects/esp32aprs-t-twr-plus-aprs-station) | [Markdown](https://openhardware.directory/projects/esp32aprs-t-twr-plus-aprs-station/md)

## My TTGO Watch: ESP32 Smartwatch Firmware for T-Watch 2020

The "hedge" GUI framework transforms the LILYGO T-Watch 2020 (V1/V2/V3) into a full-featured smartwatch with watch faces, step counting, Gadgetbridge notifications, weather, navigation, and a modular app ecosystem.

[Details](https://openhardware.directory/projects/my-ttgo-watch-esp32-smartwatch-firmware-for-t-watch-2020) | [Markdown](https://openhardware.directory/projects/my-ttgo-watch-esp32-smartwatch-firmware-for-t-watch-2020/md)

## TTGO T-Beam TTN LoRaWAN GPS Mapper

A GPS tracker that uploads location data to The Things Network and TTN Mapper, measuring LoRaWAN gateway signal strength and coverage using the TTGO T-Beam.

[Details](https://openhardware.directory/projects/ttgo-t-beam-ttn-lorawan-gps-mapper) | [Markdown](https://openhardware.directory/projects/ttgo-t-beam-ttn-lorawan-gps-mapper/md)

## qpaperOS — E-Ink Smartwatch Firmware for T-Wrist

A minimal open-source smartwatch firmware for the LILYGO T-Wrist E-Paper with 3D-printable case, always-on time display, battery status, and deep-sleep for ~4-day battery life.

[Details](https://openhardware.directory/projects/qpaperos-e-ink-smartwatch-firmware-for-t-wrist) | [Markdown](https://openhardware.directory/projects/qpaperos-e-ink-smartwatch-firmware-for-t-wrist/md)

## TTGO T-Beam LoRa APRS Tracker

A configurable LoRa APRS tracker running on the TTGO T-Beam, supporting smart beaconing, weather station mode, digipeater functionality, and over-the-air setup via a rotary encoder display.

[Details](https://openhardware.directory/projects/ttgo-t-beam-lora-aprs-tracker) | [Markdown](https://openhardware.directory/projects/ttgo-t-beam-lora-aprs-tracker/md)

## CyberWatch — Cyberpunk-Themed T-Watch S3 Firmware

A Cyberpunk 2077–inspired custom firmware for the LILYGO T-Watch S3, featuring a neon app grid with system info, clocks, settings, tools, and a flashlight — all skinned in a dark, futuristic aesthetic.

[Details](https://openhardware.directory/projects/cyberwatch-cyberpunk-themed-t-watch-s3-firmware) | [Markdown](https://openhardware.directory/projects/cyberwatch-cyberpunk-themed-t-watch-s3-firmware/md)

## E-Paper Internet Weather Station on LILYGO T5 2.13"

A battery-efficient internet weather station using the LILYGO T5 V2.3 ESP32 with 2.13" e-ink display, fetching temperature, humidity, and wind data every 15 minutes with deep sleep.

[Details](https://openhardware.directory/projects/e-paper-internet-weather-station-on-lilygo-t5-2-13) | [Markdown](https://openhardware.directory/projects/e-paper-internet-weather-station-on-lilygo-t5-2-13/md)

## Binary Clock Station for T-Display S3

A polished binary clock for the LILYGO T-Display S3 that shows BCD time as illuminated dot columns with WiFi NTP sync, adjustable brightness, and a decimal overlay toggle.

[Details](https://openhardware.directory/projects/binary-clock-station-for-t-display-s3) | [Markdown](https://openhardware.directory/projects/binary-clock-station-for-t-display-s3/md)

## Valentine One Gen2 Remote Display on LILYGO T4 S3

A Bluetooth Low Energy remote display for the Valentine One Gen 2 radar detector, running on the LILYGO T4 S3's 2.41" AMOLED screen with directional alerts, signal strength, GPS-based lockouts, and OTA updates.

[Details](https://openhardware.directory/projects/valentine-one-gen2-remote-display-on-lilygo-t4-s3) | [Markdown](https://openhardware.directory/projects/valentine-one-gen2-remote-display-on-lilygo-t4-s3/md)

## TTGO LoRa32 Paxcounter for The Things Network

A people-counting node on the TTGO LoRa32 V2.1 that scans for nearby WiFi and Bluetooth devices, uploads counts via LoRaWAN to TTN, and supports relay control via TTN downlinks.

[Details](https://openhardware.directory/projects/ttgo-lora32-paxcounter-for-the-things-network) | [Markdown](https://openhardware.directory/projects/ttgo-lora32-paxcounter-for-the-things-network/md)

## PlantStatus — T-HiGrow Plant Monitor with Home Assistant

A full-featured plant monitoring application for the LILYGO T-HiGrow ESP32 with live soil moisture, conductivity, light, and temperature readings, MQTT logging, and Home Assistant integration.

[Details](https://openhardware.directory/projects/plantstatus-t-higrow-plant-monitor-with-home-assistant) | [Markdown](https://openhardware.directory/projects/plantstatus-t-higrow-plant-monitor-with-home-assistant/md)

## Meshtastic with GPS and Offline Maps on T-Deck Plus

Set up the LILYGO T-Deck Plus as a Meshtastic handheld communicator with built-in GPS and offline raster map tiles stored on a microSD card for real-time mesh network visualization in the field.

[Details](https://openhardware.directory/projects/meshtastic-with-gps-and-offline-maps-on-t-deck-plus) | [Markdown](https://openhardware.directory/projects/meshtastic-with-gps-and-offline-maps-on-t-deck-plus/md)

## ChirpR OS — All-in-One Communication Firmware for T-Deck Pro

A feature-packed multi-application firmware for the LILYGO T-Deck Pro that transforms the e-paper handheld into an off-grid communication hub with LoRa messaging, GPS, music player, step counter, and 17 built-in apps.

[Details](https://openhardware.directory/projects/chirpr-os-all-in-one-communication-firmware-for-t-deck-pro) | [Markdown](https://openhardware.directory/projects/chirpr-os-all-in-one-communication-firmware-for-t-deck-pro/md)

## Z80-MBC2 Emulator on LILYGO FabGL VGA32

A software emulation of the Z80-MBC2 homebrew computer running on the LILYGO FabGL VGA32, outputting to a real VGA monitor with PS/2 keyboard support and SD card storage.

[Details](https://openhardware.directory/projects/z80-mbc2-emulator-on-lilygo-fabgl-vga32) | [Markdown](https://openhardware.directory/projects/z80-mbc2-emulator-on-lilygo-fabgl-vga32/md)

## T5 E-Paper S3 Pro UI — Weather & LoRa Dashboard

A feature-rich UI for the LILYGO T5 E-Paper S3 Pro combining weather display, LoRa SX1262 radio, touch navigation, and MagSafe charging support on a 4.7" 16-gray e-paper screen.

[Details](https://openhardware.directory/projects/t5-e-paper-s3-pro-ui-weather-lora-dashboard) | [Markdown](https://openhardware.directory/projects/t5-e-paper-s3-pro-ui-weather-lora-dashboard/md)

## s-term — SSH Terminal and Notepad for LILYGO T-Deck Pro

A keyboard-driven SSH terminal and e-ink notepad firmware for the LILYGO T-Deck Pro, with WireGuard VPN support, SD card file management, BLE HID keyboard/trackpad mode, and optional Meshtastic radio integration.

[Details](https://openhardware.directory/projects/s-term-ssh-terminal-and-notepad-for-lilygo-t-deck-pro) | [Markdown](https://openhardware.directory/projects/s-term-ssh-terminal-and-notepad-for-lilygo-t-deck-pro/md)

## T-Watch S3 ESPHome Integration for Home Assistant

A complete ESPHome configuration for the LILYGO T-Watch S3 that enables all onboard hardware — touchscreen, accelerometer, microphone, speaker, IR blaster, and voice assistant — through Home Assistant integration.

[Details](https://openhardware.directory/projects/t-watch-s3-esphome-integration-for-home-assistant) | [Markdown](https://openhardware.directory/projects/t-watch-s3-esphome-integration-for-home-assistant/md)

## ESPectrum ZX Spectrum Emulator on VGA32

A cycle-accurate ZX Spectrum 48K/128K emulator for ESP32 boards with VGA output, featuring full sound emulation, PS/2 keyboard and joystick support, and SD card file management.

[Details](https://openhardware.directory/projects/espectrum-zx-spectrum-emulator-on-vga32) | [Markdown](https://openhardware.directory/projects/espectrum-zx-spectrum-emulator-on-vga32/md)

## T-ETH-Lite ESPHome Wired Ethernet Sensor Node

ESPHome configuration for the LILYGO T-ETH-Lite ESP32-S3 that integrates W5500 wired Ethernet with I2C sensor support — ideal for reliable, WiFi-free Home Assistant sensor nodes using standard Cat5 cable.

[Details](https://openhardware.directory/projects/t-eth-lite-esphome-wired-ethernet-sensor-node) | [Markdown](https://openhardware.directory/projects/t-eth-lite-esphome-wired-ethernet-sensor-node/md)

## T3-S3 E-Paper Meshtastic LoRa Node

Run Meshtastic mesh networking firmware on the LILYGO T3-S3 E-Paper, combining ESP32-S3, SX1262 LoRa, and a 2.13" e-paper display for off-grid text messaging with persistent screen status.

[Details](https://openhardware.directory/projects/t3-s3-e-paper-meshtastic-lora-node) | [Markdown](https://openhardware.directory/projects/t3-s3-e-paper-meshtastic-lora-node/md)

## T-Glass iOS Notification Display and Image Capture App

Custom ESP-IDF applications for the LILYGO T-Glass V2 smart glasses, including a BLE-based iOS notification mirror (ANCS) and a remote image capture app, showcasing the wearable AMOLED prism display platform.

[Details](https://openhardware.directory/projects/t-glass-ios-notification-display-and-image-capture-app) | [Markdown](https://openhardware.directory/projects/t-glass-ios-notification-display-and-image-capture-app/md)

## T-Panel S3 ESPHome Touchscreen Home Automation Display

ESPHome configuration for the LILYGO T-Panel S3 dual-chip (ESP32-S3 + ESP32-H2) wall panel that drives the 4-inch 480×480 touchscreen, backlight control, and capacitive touch input for a custom Home Assistant dashboard.

[Details](https://openhardware.directory/projects/t-panel-s3-esphome-touchscreen-home-automation-display) | [Markdown](https://openhardware.directory/projects/t-panel-s3-esphome-touchscreen-home-automation-display/md)

## C64 Emulator for T-HMI

A Commodore 64 emulator running on the LILYGO T-HMI's 2.8-inch touchscreen with BLE and web-based keyboard input, joystick support, SD card D64 disk images, and classic game playback.

[Details](https://openhardware.directory/projects/c64-emulator-for-t-hmi) | [Markdown](https://openhardware.directory/projects/c64-emulator-for-t-hmi/md)

## T5s 2.7" E-Paper + MP3 Audio Player Demo

An Arduino demo combining the LILYGO T5s 2.7-inch e-paper display with onboard I2S MAX98357A audio playback and ICS43434 MEMS microphone using the official TTGO-T5S-Epaper examples.

[Details](https://openhardware.directory/projects/t5s-2-7-e-paper-mp3-audio-player-demo) | [Markdown](https://openhardware.directory/projects/t5s-2-7-e-paper-mp3-audio-player-demo/md)

## TTGO T-Beam Helium Network Mapper

A portable Helium network coverage mapper using the TTGO T-Beam rev 1.1, sending LoRa packets to nearby hotspots and uploading signal metrics to mappers.helium.com for community coverage mapping.

[Details](https://openhardware.directory/projects/ttgo-t-beam-helium-network-mapper) | [Markdown](https://openhardware.directory/projects/ttgo-t-beam-helium-network-mapper/md)

## Stock Market Ticker Display on LILYGO T-Dongle S3

A real-time stock market display for the LILYGO T-Dongle S3's 0.96" screen, showing S&P 500, NASDAQ 100, and 10-year T-Bill values and daily percentage changes pulled from Yahoo Finance over WiFi.

[Details](https://openhardware.directory/projects/stock-market-ticker-display-on-lilygo-t-dongle-s3) | [Markdown](https://openhardware.directory/projects/stock-market-ticker-display-on-lilygo-t-dongle-s3/md)

## T-Embed Application Shell

An LVGL-based application framework for the LILYGO T-Embed showcasing WiFi scanning, BLE device discovery, SD card browsing, RGB LED control, and deep sleep via rotary encoder.

[Details](https://openhardware.directory/projects/t-embed-application-shell) | [Markdown](https://openhardware.directory/projects/t-embed-application-shell/md)

## T-Dongle Ducky — WiFi-Controlled Rubber Ducky on LILYGO T-Dongle S3

Transforms the LILYGO T-Dongle S3 into a WiFi-controlled USB HID Rubber Ducky, controllable via a web server hosted on the device itself — with a DuckyScript interpreter, file storage, and both AP and STA WiFi modes.

[Details](https://openhardware.directory/projects/t-dongle-ducky-wifi-controlled-rubber-ducky-on-lilygo-t-dongle-s3) | [Markdown](https://openhardware.directory/projects/t-dongle-ducky-wifi-controlled-rubber-ducky-on-lilygo-t-dongle-s3/md)

## LVGL Smart Watch UI for LILYGO T-Encoder Pro

A SquareLine Studio–designed LVGL smart watch demo ported to the LILYGO T-Encoder Pro's AMOLED display, using a lean custom SH8601 display driver and CHSC5816 touch driver — a ready-to-extend firmware template.

[Details](https://openhardware.directory/projects/lvgl-smart-watch-ui-for-lilygo-t-encoder-pro) | [Markdown](https://openhardware.directory/projects/lvgl-smart-watch-ui-for-lilygo-t-encoder-pro/md)

## LILYGO TO-ESP8266 OLED SH1106 with Tasmota

Flash the LILYGO TO-ESP8266 OLED SH1106 with Tasmota to get a WiFi-connected smart switch with a 1.3" SH1106 OLED display showing sensor values, device state, and IP address.

[Details](https://openhardware.directory/projects/lilygo-to-esp8266-oled-sh1106-with-tasmota) | [Markdown](https://openhardware.directory/projects/lilygo-to-esp8266-oled-sh1106-with-tasmota/md)

## ESPHome Configuration for LILYGO T-Dongle S3

A complete ESPHome YAML configuration for the LILYGO T-Dongle S3, enabling easy Home Assistant integration with the device's 0.96" color display, LED, and GPIO pins — no C++ coding required.

[Details](https://openhardware.directory/projects/esphome-configuration-for-lilygo-t-dongle-s3) | [Markdown](https://openhardware.directory/projects/esphome-configuration-for-lilygo-t-dongle-s3/md)

## T-SIM7080G-S3 Solar-Powered NB-IoT Remote Sensor Node

Arduino/PlatformIO firmware for the LILYGO T-SIM7080G-S3 that creates a solar-powered, battery-backed NB-IoT remote sensor node publishing GPS location and environmental data to MQTT or cloud IoT platforms — with deep sleep for multi-day battery life.

[Details](https://openhardware.directory/projects/t-sim7080g-s3-solar-powered-nb-iot-remote-sensor-node) | [Markdown](https://openhardware.directory/projects/t-sim7080g-s3-solar-powered-nb-iot-remote-sensor-node/md)

## Meshtastic LoRa Mesh Node with LILYGO T3-S3

A compact off-grid LoRa mesh communication node built on the LILYGO T3-S3, running Meshtastic firmware for long-range text messaging, GPS position sharing, and sensor telemetry without cellular or internet.

[Details](https://openhardware.directory/projects/meshtastic-lora-mesh-node-with-lilygo-t3-s3) | [Markdown](https://openhardware.directory/projects/meshtastic-lora-mesh-node-with-lilygo-t3-s3/md)

## Meck — Meshcore BLE/WiFi Companion Firmware for T-Deck Pro

A fork of Meshcore focused on enabling BLE and WiFi companion app connectivity for the LILYGO T-Deck Pro, letting users pair the handheld with smartphone apps for off-grid LoRa mesh messaging.

[Details](https://openhardware.directory/projects/meck-meshcore-ble-wifi-companion-firmware-for-t-deck-pro) | [Markdown](https://openhardware.directory/projects/meck-meshcore-ble-wifi-companion-firmware-for-t-deck-pro/md)

## Weather-Tiny — Pocket Weather Station on T5 V2.3.1

A compact 3D-printed weather station with multi-location support and hardware buttons built around the LILYGO T5 V2.3.1 ESP32 with 2.13" e-ink display, running on a LiPo battery.

[Details](https://openhardware.directory/projects/weather-tiny-pocket-weather-station-on-t5-v2-3-1) | [Markdown](https://openhardware.directory/projects/weather-tiny-pocket-weather-station-on-t5-v2-3-1/md)

## T-Beam Supreme as a Meshtastic Long-Range Node

Deploy the LILYGO T-Beam Supreme as a high-performance Meshtastic mesh node, leveraging its ESP32-S3, SX1262 LoRa radio, and precision GPS to achieve 10+ km range and serve as a backbone relay in off-grid communication networks.

[Details](https://openhardware.directory/projects/t-beam-supreme-as-a-meshtastic-long-range-node) | [Markdown](https://openhardware.directory/projects/t-beam-supreme-as-a-meshtastic-long-range-node/md)

## T-Lora Pager Meshtastic Portable Node with Offline Maps

A complete Meshtastic build using the LILYGO T-Lora Pager — a pager-form-factor off-grid communicator with QWERTY keyboard, LoRa mesh radio, GPS, NFC, and optional SD-card offline maps for fieldwork and emergency communications.

[Details](https://openhardware.directory/projects/t-lora-pager-meshtastic-portable-node-with-offline-maps) | [Markdown](https://openhardware.directory/projects/t-lora-pager-meshtastic-portable-node-with-offline-maps/md)

## T-Mini E-Paper S3 Meshtastic Node with Tiny Display

Flash Meshtastic firmware onto the LILYGO T-Mini E-Paper S3 for a compact off-grid LoRa mesh node with a 1.02" e-paper status display showing node info and received messages.

[Details](https://openhardware.directory/projects/t-mini-e-paper-s3-meshtastic-node-with-tiny-display) | [Markdown](https://openhardware.directory/projects/t-mini-e-paper-s3-meshtastic-node-with-tiny-display/md)

## T-TWR Rev 2.1 FSK Digital Modem

A 1000 bps FSK software modem for the LILYGO T-TWR Rev 2.1, enabling digital data transmission over UHF with LDPC forward error correction and real-time ASCII waterfall display.

[Details](https://openhardware.directory/projects/t-twr-rev-2-1-fsk-digital-modem) | [Markdown](https://openhardware.directory/projects/t-twr-rev-2-1-fsk-digital-modem/md)

## T-CAN485 Vehicle CAN Bus Monitor with ESP32RET and SavvyCAN

Deploy ESP32RET firmware on the LILYGO T-CAN485 to capture and analyze vehicle CAN bus traffic using SavvyCAN — no soldering required, as the CAN transceiver is built into the $12 board.

[Details](https://openhardware.directory/projects/t-can485-vehicle-can-bus-monitor-with-esp32ret-and-savvycan) | [Markdown](https://openhardware.directory/projects/t-can485-vehicle-can-bus-monitor-with-esp32ret-and-savvycan/md)

## TinyIO — Sub-GHz RF Sniffer and Replayer on LILYGO T-QT Pro

A sub-GHz RF signal sniffer and replayer built on the LILYGO T-QT Pro paired with a CC1101 radio module, capable of copying, storing, and replaying ASK-OOK signals from garage doors, doorbells, and wireless sensors.

[Details](https://openhardware.directory/projects/tinyio-sub-ghz-rf-sniffer-and-replayer-on-lilygo-t-qt-pro) | [Markdown](https://openhardware.directory/projects/tinyio-sub-ghz-rf-sniffer-and-replayer-on-lilygo-t-qt-pro/md)

## Meshtastic Off-Grid Node on T-Echo

Turn the LILYGO T-Echo into a low-power Meshtastic mesh node with multi-day battery life, e-paper display, and Bluetooth app pairing for off-grid encrypted mesh communications.

[Details](https://openhardware.directory/projects/meshtastic-off-grid-node-on-t-echo) | [Markdown](https://openhardware.directory/projects/meshtastic-off-grid-node-on-t-echo/md)

## ESPHome Display Component for LILYGO T5 4.7" V2.3 (ESP32-S3)

A custom ESPHome external component enabling the LILYGO T5 4.7-inch ESP32-S3 (V2.3 Plus) e-paper display to work with ESPHome YAML, enabling Home Assistant dashboards, weather, and sensor data rendering.

[Details](https://openhardware.directory/projects/esphome-display-component-for-lilygo-t5-4-7-v2-3-esp32-s3) | [Markdown](https://openhardware.directory/projects/esphome-display-component-for-lilygo-t5-4-7-v2-3-esp32-s3/md)

## T-Watch 2020 Arduino Framework with Custom Watch Faces

Build a custom watch face application on the LILYGO T-Watch 2020 (V1/V2/V3) using the Arduino framework, LVGL graphics, and the official TTGO TWatch Library, with time sync, touchscreen interaction, and expandable app support.

[Details](https://openhardware.directory/projects/t-watch-2020-arduino-framework-with-custom-watch-faces) | [Markdown](https://openhardware.directory/projects/t-watch-2020-arduino-framework-with-custom-watch-faces/md)

## MeshCore Terminal on T-Deck

Flash the LILYGO T-Deck with MeshCore firmware to create a fast, professional LoRa mesh communicator with offline maps, repeater management, signal diagnostics, and a terminal CLI — all accessible via the physical QWERTY keyboard.

[Details](https://openhardware.directory/projects/meshcore-terminal-on-t-deck) | [Markdown](https://openhardware.directory/projects/meshcore-terminal-on-t-deck/md)

## High-Power Meshtastic Node with LILYGO T-Beam 1W

A long-range Meshtastic mesh node built on the LILYGO T-Beam 1W, using its 1-watt LoRa power amplifier for extended coverage as a hilltop repeater or remote area relay node.

[Details](https://openhardware.directory/projects/high-power-meshtastic-node-with-lilygo-t-beam-1w) | [Markdown](https://openhardware.directory/projects/high-power-meshtastic-node-with-lilygo-t-beam-1w/md)

## OpenWeather Display for LILYGO T-Display

A self-configuring OpenWeatherMap weather station for the LILYGO T-Display (ESP32 + 1.14" LCD), showing temperature, humidity, pressure, weather icons, and time with a web-based configuration portal.

[Details](https://openhardware.directory/projects/openweather-display-for-lilygo-t-display) | [Markdown](https://openhardware.directory/projects/openweather-display-for-lilygo-t-display/md)

## ESPHome Home Assistant Panel for T-Display

An ESPHome template for the LILYGO T-Display (ESP32 + 1.14" display) that shows Home Assistant sensor data on the screen, monitors battery state, and handles GPIO button inputs.

[Details](https://openhardware.directory/projects/esphome-home-assistant-panel-for-t-display) | [Markdown](https://openhardware.directory/projects/esphome-home-assistant-panel-for-t-display/md)

## Multi-Band LoRaWAN Sensor Node with T3-S3 LR1121

A LoRaWAN sensor node built on the LILYGO T3-S3 LR1121, leveraging the LR1121 chip's multi-band capability to operate on Sub-GHz (433/868/915 MHz) and 2.4 GHz frequencies from a single hardware platform.

[Details](https://openhardware.directory/projects/multi-band-lorawan-sensor-node-with-t3-s3-lr1121) | [Markdown](https://openhardware.directory/projects/multi-band-lorawan-sensor-node-with-t3-s3-lr1121/md)

## LiLoRa — LoRaWAN Coverage Mapper with T-Watch S3

A wearable LoRaWAN range testing system using the LILYGO T-Watch S3, pairing the watch's SX1262 radio with GPS from a BLE-connected smartphone to map network coverage and signal quality in real time.

[Details](https://openhardware.directory/projects/lilora-lorawan-coverage-mapper-with-t-watch-s3) | [Markdown](https://openhardware.directory/projects/lilora-lorawan-coverage-mapper-with-t-watch-s3/md)

## LVGL Analog Clock for T-RGB Round Display

An analog clock application for the LILYGO T-RGB 2.1-inch round display, using LVGL 8 on ESP32-S3 with NTP synchronization, WiFi configuration, and a clean circular watchface layout.

[Details](https://openhardware.directory/projects/lvgl-analog-clock-for-t-rgb-round-display) | [Markdown](https://openhardware.directory/projects/lvgl-analog-clock-for-t-rgb-round-display/md)

## Bruce Firmware for T-Embed CC1101

An offensive security and red-team firmware for the LILYGO T-Embed CC1101, providing sub-GHz RF scanning, signal replay, WiFi attacks, BLE exploitation, NFC cloning, IR control, and BadUSB — with 5.1k GitHub stars.

[Details](https://openhardware.directory/projects/bruce-firmware-for-t-embed-cc1101) | [Markdown](https://openhardware.directory/projects/bruce-firmware-for-t-embed-cc1101/md)

## Rust Drivers and 3D Renderer for LILYGO T4 S3

A Rust starter pack for the LILYGO T4 S3 featuring a display driver, touchscreen driver, and embedded-graphics examples including a real-time 3D model renderer on the 2.41" AMOLED display.

[Details](https://openhardware.directory/projects/rust-drivers-and-3d-renderer-for-lilygo-t4-s3) | [Markdown](https://openhardware.directory/projects/rust-drivers-and-3d-renderer-for-lilygo-t4-s3/md)

## ESP32-CAM MJPEG2SD Motion Security Camera

A comprehensive motion-capture camera firmware for ESP32-S3 boards including the LILYGO T-Camera S3, recording MJPEG video to SD card, streaming to a browser, and sending Telegram/email alerts on PIR or camera-detected motion.

[Details](https://openhardware.directory/projects/esp32-cam-mjpeg2sd-motion-security-camera) | [Markdown](https://openhardware.directory/projects/esp32-cam-mjpeg2sd-motion-security-camera/md)

## LoRaWAN Node with WiFi 6 and 802.15.4 on T-Lora C6

A LoRaWAN OTAA sensor node built on the LILYGO T-Lora C6, combining SX1262 long-range LoRa radio with the ESP32-C6's native WiFi 6, Bluetooth 5, and 802.15.4 (Zigbee/Thread) connectivity for versatile IoT gateway applications.

[Details](https://openhardware.directory/projects/lorawan-node-with-wifi-6-and-802-15-4-on-t-lora-c6) | [Markdown](https://openhardware.directory/projects/lorawan-node-with-wifi-6-and-802-15-4-on-t-lora-c6/md)

## Simple E-Book Reader for LILYGO T-Deck Pro

A minimal plain-text e-reader firmware for the LILYGO T-Deck Pro that reads .txt files from an SD card on the built-in e-paper display, with persistent page indexing, word wrap, and keyboard navigation.

[Details](https://openhardware.directory/projects/simple-e-book-reader-for-lilygo-t-deck-pro) | [Markdown](https://openhardware.directory/projects/simple-e-book-reader-for-lilygo-t-deck-pro/md)

## T-Camera Plus S3 LVGL Smart Camera Station

A complete LVGL-based smart camera platform for the LILYGO T-Camera Plus S3 with live camera preview on the 240×240 display, file management, audio recording/playback, and face detection via the OV2640 sensor.

[Details](https://openhardware.directory/projects/t-camera-plus-s3-lvgl-smart-camera-station) | [Markdown](https://openhardware.directory/projects/t-camera-plus-s3-lvgl-smart-camera-station/md)

## Spike Ring — Animated Mascot Wearable on LILYGO T-QT C6

A wearable ring device running an animated mascot character ("Spike") on the LILYGO T-QT C6's tiny touchscreen, with an animation controller, sprite manager, skin menu, and touch handler built in Arduino.

[Details](https://openhardware.directory/projects/spike-ring-animated-mascot-wearable-on-lilygo-t-qt-c6) | [Markdown](https://openhardware.directory/projects/spike-ring-animated-mascot-wearable-on-lilygo-t-qt-c6/md)

## RDA5807 FM Radio Receiver for T-Embed

An FM radio receiver for the LILYGO T-Embed using an RDA5807 module, controlled via the rotary encoder and displayed on the 1.9-inch TFT — leveraging the board's built-in speaker and amplifier for audio output.

[Details](https://openhardware.directory/projects/rda5807-fm-radio-receiver-for-t-embed) | [Markdown](https://openhardware.directory/projects/rda5807-fm-radio-receiver-for-t-embed/md)

## Multiplayer Game Timer on LILYGO T-Encoder Pro

A 2–4 player tabletop game timer built on the LILYGO T-Encoder Pro, using the AMOLED display and rotary encoder to set player count and time intervals, with randomized start order and color-coded player turns.

[Details](https://openhardware.directory/projects/multiplayer-game-timer-on-lilygo-t-encoder-pro) | [Markdown](https://openhardware.directory/projects/multiplayer-game-timer-on-lilygo-t-encoder-pro/md)

## Infiltra RF Security Toolkit for T-Embed CC1101

An open-source multi-protocol security research firmware for the LILYGO T-Embed CC1101 with sub-GHz RF scanning, signal emulation, WiFi deauth, BLE spam, NFC cloning, and spectrum analysis — 159 stars on GitHub.

[Details](https://openhardware.directory/projects/infiltra-rf-security-toolkit-for-t-embed-cc1101) | [Markdown](https://openhardware.directory/projects/infiltra-rf-security-toolkit-for-t-embed-cc1101/md)

## BLE Bike Computer for T-RGB Round Display

A Bluetooth bike computer for the LILYGO T-RGB round display, showing live speed, cadence, and heart rate from BLE sensors, with Komoot navigation turn-by-turn hints and SD card data logging.

[Details](https://openhardware.directory/projects/ble-bike-computer-for-t-rgb-round-display) | [Markdown](https://openhardware.directory/projects/ble-bike-computer-for-t-rgb-round-display/md)

## ESPHome PIR Security Camera for T-Camera S3

An ESPHome configuration for the LILYGO T-Camera S3 that enables MJPEG live streaming, snapshot server, PIR motion detection, and OLED status display — all integrated natively with Home Assistant.

[Details](https://openhardware.directory/projects/esphome-pir-security-camera-for-t-camera-s3) | [Markdown](https://openhardware.directory/projects/esphome-pir-security-camera-for-t-camera-s3/md)

## XiaoZhi AI Voice Chatbot on LILYGO T-Circle S3

Run the viral XiaoZhi AI voice chatbot on the LILYGO T-Circle S3's tiny 0.75" round display — featuring offline wake-word detection, streaming voice interaction with Qwen/DeepSeek LLMs, and MCP protocol for smart home control.

[Details](https://openhardware.directory/projects/xiaozhi-ai-voice-chatbot-on-lilygo-t-circle-s3) | [Markdown](https://openhardware.directory/projects/xiaozhi-ai-voice-chatbot-on-lilygo-t-circle-s3/md)

## openHASP Touchscreen Panel for T-HMI

An MQTT-driven Home Assistant touchscreen panel for the LILYGO T-HMI using openHASP — define buttons, sliders, and labels via JSON and push UI updates over-the-air without recompiling firmware.

[Details](https://openhardware.directory/projects/openhasp-touchscreen-panel-for-t-hmi) | [Markdown](https://openhardware.directory/projects/openhasp-touchscreen-panel-for-t-hmi/md)

## T-Watch S3 Custom Software Platform — Bachelor's Thesis Project

A comprehensive custom firmware platform for the LILYGO T-Watch S3, developed as a university thesis and continued as a personal project — featuring graphics, audio, IR, WiFi, web configuration portal, sleep management, and JSON-based persistent storage.

[Details](https://openhardware.directory/projects/t-watch-s3-custom-software-platform-bachelor-s-thesis-project) | [Markdown](https://openhardware.directory/projects/t-watch-s3-custom-software-platform-bachelor-s-thesis-project/md)

## BloodMoon — WiFi Scanner and Deauth Tool on LILYGO T-QT Pro

A Marauder-inspired wireless security toolkit for the LILYGO T-QT Pro that scans nearby WiFi access points and stations, displays beacon frame details, and performs deauthentication attacks — all on a 0.85" display with two-button navigation.

[Details](https://openhardware.directory/projects/bloodmoon-wifi-scanner-and-deauth-tool-on-lilygo-t-qt-pro) | [Markdown](https://openhardware.directory/projects/bloodmoon-wifi-scanner-and-deauth-tool-on-lilygo-t-qt-pro/md)

## Retro Power Meter Display for T-Display S3

A retro-styled multimeter interface for the LILYGO T-Display S3 using an INA219 power sensor, displaying voltage, current, temperature, humidity, pressure, RTC time, and resistance on a classic LCD-style UI.

[Details](https://openhardware.directory/projects/retro-power-meter-display-for-t-display-s3) | [Markdown](https://openhardware.directory/projects/retro-power-meter-display-for-t-display-s3/md)

## LilyPhone1 — Phone App Firmware for LILYGO T-Deck Pro

A phone-inspired LVGL UI firmware for the LILYGO T-Deck Pro that turns the e-paper + LTE handheld into a functional phone interface with cellular modem support, GPS, touch, audio, and a web-based UI built with PlatformIO.

[Details](https://openhardware.directory/projects/lilyphone1-phone-app-firmware-for-lilygo-t-deck-pro) | [Markdown](https://openhardware.directory/projects/lilyphone1-phone-app-firmware-for-lilygo-t-deck-pro/md)

## MicroPythonOS — Android-Inspired MicroPython OS for T-Watch S3 Plus

A complete MicroPython operating system with Android-like gestures, App Store, and OTA updates, with official board support for the LILYGO T-Watch S3 Plus including display, touch, IMU, audio, and vibration configuration.

[Details](https://openhardware.directory/projects/micropythonos-android-inspired-micropython-os-for-t-watch-s3-plus) | [Markdown](https://openhardware.directory/projects/micropythonos-android-inspired-micropython-os-for-t-watch-s3-plus/md)

## Launcher — Multi-Firmware App Launcher for LILYGO T-Watch Ultra

A 1300-star multi-firmware application launcher for ESP32 devices with official T-Watch Ultra support — lets you install and switch between different firmware binaries over OTA, USB, SD card, or web, without needing a PC or USB cable.

[Details](https://openhardware.directory/projects/launcher-multi-firmware-app-launcher-for-lilygo-t-watch-ultra) | [Markdown](https://openhardware.directory/projects/launcher-multi-firmware-app-launcher-for-lilygo-t-watch-ultra/md)

## T-Knob SmartKnob Fork — Haptic Encoder with Software Detents

A community fork of the LILYGO T-Knob that explores using its ESP32-C6, TMC6300 motor driver, and MT6701 magnetic encoder to build a SmartKnob-style haptic rotary controller with software-defined detents and position limits.

[Details](https://openhardware.directory/projects/t-knob-smartknob-fork-haptic-encoder-with-software-detents) | [Markdown](https://openhardware.directory/projects/t-knob-smartknob-fork-haptic-encoder-with-software-detents/md)

## DeskPet Watch — Virtual Pet and BT Scroll Controller on T-Encoder Pro

An enhanced T-Encoder Pro firmware featuring a virtual desktop pet with moods, a Bluetooth HID scroll controller with haptic momentum feedback, weather display, and dual encoder/touch brightness control — all on the AMOLED watch face.

[Details](https://openhardware.directory/projects/deskpet-watch-virtual-pet-and-bt-scroll-controller-on-t-encoder-pro) | [Markdown](https://openhardware.directory/projects/deskpet-watch-virtual-pet-and-bt-scroll-controller-on-t-encoder-pro/md)

## Meshtastic Wearable Node on LILYGO T-Watch S3 Plus

Flash the official Meshtastic firmware onto the LILYGO T-Watch S3 Plus to turn it into a wrist-worn LoRa mesh node with GPS tracking, 2-way messaging, haptic feedback, and BMA423 step counting — using the built-in SX1262 radio.

[Details](https://openhardware.directory/projects/meshtastic-wearable-node-on-lilygo-t-watch-s3-plus) | [Markdown](https://openhardware.directory/projects/meshtastic-wearable-node-on-lilygo-t-watch-s3-plus/md)

## FRFD — First Responder Forensics Dongle on LILYGO T-Dongle S3

A portable CSIRT forensics tool on the LILYGO T-Dongle S3 that automates evidence collection from Windows, Linux, and macOS via USB HID keyboard emulation — with triage, containment, and collection modes shown on the 0.96" display.

[Details](https://openhardware.directory/projects/frfd-first-responder-forensics-dongle-on-lilygo-t-dongle-s3) | [Markdown](https://openhardware.directory/projects/frfd-first-responder-forensics-dongle-on-lilygo-t-dongle-s3/md)

## Bruce Firmware — Multi-Tool Security Platform

A feature-packed ESP32 security multi-tool firmware with sub-GHz RF capture/replay, IR, NFC, WiFi attacks, BLE, and BadUSB — often called the open-source Flipper Zero alternative with 5,000+ GitHub stars.

[Details](https://openhardware.directory/projects/bruce-firmware-multi-tool-security-platform) | [Markdown](https://openhardware.directory/projects/bruce-firmware-multi-tool-security-platform/md)

## USB Army Knife — Portable Penetration Testing Dongle

Turns the LILYGO T-Dongle S3 into a Swiss Army knife for close-access penetration testing with BadUSB, WiFi attacks, BLE scanning, HID injection, and network implant capabilities.

[Details](https://openhardware.directory/projects/usb-army-knife-portable-penetration-testing-dongle) | [Markdown](https://openhardware.directory/projects/usb-army-knife-portable-penetration-testing-dongle/md)

## CapibaraZero — Open-Source Flipper Zero Alternative

A ground-up open-source Flipper Zero alternative firmware for ESP32-S3 hardware, covering WiFi, BLE, BadUSB, NFC, sub-GHz (CC1101), and IR with clean architecture and web flasher.

[Details](https://openhardware.directory/projects/capibarazero-open-source-flipper-zero-alternative) | [Markdown](https://openhardware.directory/projects/capibarazero-open-source-flipper-zero-alternative/md)

## MeshCore — Lightweight LoRa Mesh Protocol

A rapidly growing open-source LoRa mesh networking protocol with hybrid routing, room servers, and encrypted messaging — a lightweight alternative to Meshtastic with 2,200+ GitHub stars.

[Details](https://openhardware.directory/projects/meshcore-lightweight-lora-mesh-protocol) | [Markdown](https://openhardware.directory/projects/meshcore-lightweight-lora-mesh-protocol/md)

## RNode Firmware — Reticulum Encrypted Mesh Radio Interface

Open firmware that transforms LoRa boards into flexible encrypted radio interfaces for the Reticulum Network Stack — enabling unstoppable mesh networking over LoRa, WiFi, and packet radio.

[Details](https://openhardware.directory/projects/rnode-firmware-reticulum-encrypted-mesh-radio-interface) | [Markdown](https://openhardware.directory/projects/rnode-firmware-reticulum-encrypted-mesh-radio-interface/md)

## ATS-Mini — All-Band Radio Receiver Firmware for T-Embed SI4732

Community firmware for the LILYGO T-Embed SI4732 transforming it into a capable AM/FM/SW/SSB receiver with spectrum waterfall display, band scanning, memory presets, and modern touchscreen UI.

[Details](https://openhardware.directory/projects/ats-mini-all-band-radio-receiver-firmware-for-t-embed-si4732) | [Markdown](https://openhardware.directory/projects/ats-mini-all-band-radio-receiver-firmware-for-t-embed-si4732/md)

## OpenMQTTGateway — Multi-Protocol Radio to MQTT Bridge

A universal MQTT gateway for ESP32 that bridges LoRa, BLE, 433/868 MHz RF, and IR devices to Home Assistant — detecting dozens of BLE sensors, weather stations, and TPMS tire sensors.

[Details](https://openhardware.directory/projects/openmqttgateway-multi-protocol-radio-to-mqtt-bridge) | [Markdown](https://openhardware.directory/projects/openmqttgateway-multi-protocol-radio-to-mqtt-bridge/md)

## CO2 Gadget — Advanced Air Quality Monitor with Companion App

An advanced CO2 monitoring firmware for ESP32 display boards with BLE/WiFi/MQTT/ESP-Now connectivity, real-time Android/iOS companion app for charting, and support for SCD4x, SCD30, and MH-Z19 sensors.

[Details](https://openhardware.directory/projects/co2-gadget-advanced-air-quality-monitor-with-companion-app) | [Markdown](https://openhardware.directory/projects/co2-gadget-advanced-air-quality-monitor-with-companion-app/md)

## CYD-Klipper — Wireless 3D Printer Status Display

A wireless 3D printer monitoring display for Klipper, Bambu Lab, and OctoPrint — showing real-time print progress, temperatures, webcam feed, and controls on ESP32 touchscreen boards.

[Details](https://openhardware.directory/projects/cyd-klipper-wireless-3d-printer-status-display) | [Markdown](https://openhardware.directory/projects/cyd-klipper-wireless-3d-printer-status-display/md)

## ESP32-CAM Video Recorder — Motion-Triggered SD Card NVR

Full-featured motion-triggered video recording firmware for the T-Camera S3 with AVI recording to SD card, MJPEG streaming, FTP upload, Telegram alerts, and ML-based object classification.

[Details](https://openhardware.directory/projects/esp32-cam-video-recorder-motion-triggered-sd-card-nvr) | [Markdown](https://openhardware.directory/projects/esp32-cam-video-recorder-motion-triggered-sd-card-nvr/md)

## Acid Drop — Hacking and IRC Communications Firmware for T-Deck

Custom hacking and communications firmware for the LILYGO T-Deck combining an IRC client with color support, Meshtastic integration, WiFi tools, and Gotify push notifications in one package.

[Details](https://openhardware.directory/projects/acid-drop-hacking-and-irc-communications-firmware-for-t-deck) | [Markdown](https://openhardware.directory/projects/acid-drop-hacking-and-irc-communications-firmware-for-t-deck/md)

## uLisp T-Deck — Handheld Lisp Computer

Transforms the LILYGO T-Deck into a self-contained handheld Lisp computer with 1 million-object workspace, SD card persistence, graphics, WiFi, and speaker — write and run programs with no PC needed.

[Details](https://openhardware.directory/projects/ulisp-t-deck-handheld-lisp-computer) | [Markdown](https://openhardware.directory/projects/ulisp-t-deck-handheld-lisp-computer/md)

## Beryllium OS — Unix-Like Operating System for T-Deck

A unix-like operating system for CircuitPython microcontrollers with a real shell, package manager, background tasks, and GPIO/I2C/UART tools — turning the T-Deck into a tiny Linux-like computer.

[Details](https://openhardware.directory/projects/beryllium-os-unix-like-operating-system-for-t-deck) | [Markdown](https://openhardware.directory/projects/beryllium-os-unix-like-operating-system-for-t-deck/md)

## ESP32RET — CAN Bus Reverse Engineering Tool with SavvyCAN

Turns the LILYGO T-CAN485 into a sub-$15 professional CAN bus reverse engineering and sniffing tool with WiFi streaming to the SavvyCAN desktop analyzer, ELM327 emulation, and SD card logging.

[Details](https://openhardware.directory/projects/esp32ret-can-bus-reverse-engineering-tool-with-savvycan) | [Markdown](https://openhardware.directory/projects/esp32ret-can-bus-reverse-engineering-tool-with-savvycan/md)

## OpenDTU — Open-Source Solar Inverter Monitoring

Replaces Hoymiles, TSUN, and Solenso cloud gateways with a privacy-respecting local solar inverter monitor — real-time power data via MQTT and web UI on an ESP32 with wired Ethernet support.

[Details](https://openhardware.directory/projects/opendtu-open-source-solar-inverter-monitoring) | [Markdown](https://openhardware.directory/projects/opendtu-open-source-solar-inverter-monitoring/md)

## ESP-RFID — Standalone Access Control System

A standalone RFID access control system for ESP32 relay boards with web-based user management (1,000+ users), MQTT integration, NTP sync, and support for RC522, PN532, and Wiegand readers.

[Details](https://openhardware.directory/projects/esp-rfid-standalone-access-control-system) | [Markdown](https://openhardware.directory/projects/esp-rfid-standalone-access-control-system/md)

## HackWatch — Wrist-Worn Security Tool for T-Watch 2020

Security-focused firmware for the T-Watch 2020 providing WiFi deauthentication detection, BLE device fingerprinting, and TV-B-Gone IR blaster — a penetration testing tool on your wrist.

[Details](https://openhardware.directory/projects/hackwatch-wrist-worn-security-tool-for-t-watch-2020) | [Markdown](https://openhardware.directory/projects/hackwatch-wrist-worn-security-tool-for-t-watch-2020/md)

## Prusa Connect ESP32-CAM — 3D Print Monitoring Camera

Official Prusa firmware for ESP32 camera boards that streams live video to Prusa Connect cloud for remote 3D print monitoring — backed by Prusa Research with support for multiple ESP32-S3 boards.

[Details](https://openhardware.directory/projects/prusa-connect-esp32-cam-3d-print-monitoring-camera) | [Markdown](https://openhardware.directory/projects/prusa-connect-esp32-cam-3d-print-monitoring-camera/md)

## ESP32-CAM FPV — Low-Latency Digital Video for Drones and RC

Digital first-person-view (FPV) video streaming firmware for ESP32 cameras optimized for minimum latency — turns the T-Camera S3 into a lightweight digital FPV transmitter for drones and RC vehicles.

[Details](https://openhardware.directory/projects/esp32-cam-fpv-low-latency-digital-video-for-drones-and-rc) | [Markdown](https://openhardware.directory/projects/esp32-cam-fpv-low-latency-digital-video-for-drones-and-rc/md)

## Haven MANET — WiFi HaLow Mesh Radio for Long-Range Networking

An open-source MANET mesh radio toolkit using WiFi HaLow (802.11ah) for multi-kilometer range ad-hoc networking — the first open mesh networking project built specifically for sub-GHz WiFi radios.

[Details](https://openhardware.directory/projects/haven-manet-wifi-halow-mesh-radio-for-long-range-networking) | [Markdown](https://openhardware.directory/projects/haven-manet-wifi-halow-mesh-radio-for-long-range-networking/md)

## T-Dongle Ducky — WiFi-Controlled USB Rubber Ducky

Turns the LILYGO T-Dongle S3 into a WiFi-controlled USB Rubber Ducky for keystroke injection — execute DuckyScript payloads remotely via a web interface while the dongle sits plugged into the target.

[Details](https://openhardware.directory/projects/t-dongle-ducky-wifi-controlled-usb-rubber-ducky) | [Markdown](https://openhardware.directory/projects/t-dongle-ducky-wifi-controlled-usb-rubber-ducky/md)

## TamaFi — WiFi-Powered Virtual Pet

A Tamagotchi-inspired WiFi virtual pet for tiny ESP32 display boards — your pet's health depends on nearby WiFi networks, blending nostalgic virtual pet gameplay with wireless technology exploration.

[Details](https://openhardware.directory/projects/tamafi-wifi-powered-virtual-pet) | [Markdown](https://openhardware.directory/projects/tamafi-wifi-powered-virtual-pet/md)

## esp32_loraprs — Multi-Mode LoRa Modem with APRS and Digital Voice

A Swiss-army-knife LoRa firmware combining KISS Bluetooth modem, APRS iGate, digipeater, and Codec2 digital voice transceiver — maximum amateur radio versatility in a single device.

[Details](https://openhardware.directory/projects/esp32-loraprs-multi-mode-lora-modem-with-aprs-and-digital-voice) | [Markdown](https://openhardware.directory/projects/esp32-loraprs-multi-mode-lora-modem-with-aprs-and-digital-voice/md)

## Launcher — Multi-Firmware Bootloader for ESP32 Devices

A firmware launcher that stores multiple firmware images on SD card and lets you switch between them on boot — run Bruce, Marauder, and other firmwares on the same device without reflashing.

[Details](https://openhardware.directory/projects/launcher-multi-firmware-bootloader-for-esp32-devices) | [Markdown](https://openhardware.directory/projects/launcher-multi-firmware-bootloader-for-esp32-devices/md)

## TRGB Bike Computer — Cycling Dashboard for Round Display

A bike computer for the LILYGO T-RGB round display integrating BLE speed/cadence/heart rate sensors, Forumslader V5 dynamo hub charging, and Komoot turn-by-turn navigation on a circular gauge.

[Details](https://openhardware.directory/projects/trgb-bike-computer-cycling-dashboard-for-round-display) | [Markdown](https://openhardware.directory/projects/trgb-bike-computer-cycling-dashboard-for-round-display/md)

## ESP32 Arduino Matter — Build Matter Smart Home Devices

The most popular community Matter library for Arduino — build Matter-compatible smart home lights, switches, and sensors on ESP32-C6/S3 that work natively with Apple Home, Google Home, and Alexa.

[Details](https://openhardware.directory/projects/esp32-arduino-matter-build-matter-smart-home-devices) | [Markdown](https://openhardware.directory/projects/esp32-arduino-matter-build-matter-smart-home-devices/md)

## RatDeck — Reticulum Mesh Messenger on T-Deck Plus

A standalone Reticulum mesh node with encrypted LXMF messaging for the T-Deck Plus — end-to-end encrypted off-grid communication with touchscreen UI, web flasher, and no companion phone needed.

[Details](https://openhardware.directory/projects/ratdeck-reticulum-mesh-messenger-on-t-deck-plus) | [Markdown](https://openhardware.directory/projects/ratdeck-reticulum-mesh-messenger-on-t-deck-plus/md)

## OpenRTX — Open-Source Firmware for SA868 Two-Way Radios

Open-source firmware replacing the proprietary SA868 radio module code on the T-TWR, enabling the M17 digital voice protocol — a modern, royalty-free digital voice standard for amateur radio.

[Details](https://openhardware.directory/projects/openrtx-open-source-firmware-for-sa868-two-way-radios) | [Markdown](https://openhardware.directory/projects/openrtx-open-source-firmware-for-sa868-two-way-radios/md)

## WLED on Ethernet — PoE-Powered LED Controller

Run WLED on the T-Internet-POE or T-ETH-Lite for rock-solid wired Ethernet LED strip control with PoE power — eliminating WiFi drops and separate power supplies for permanent LED installations.

[Details](https://openhardware.directory/projects/wled-on-ethernet-poe-powered-led-controller) | [Markdown](https://openhardware.directory/projects/wled-on-ethernet-poe-powered-led-controller/md)

## ESP32 Marauder for T-Deck — Portable WiFi/BLE Security Suite

Port of the iconic ESP32 Marauder (10,000+ stars) WiFi and Bluetooth security toolkit to the T-Deck handheld — bringing packet sniffing, deauth detection, beacon spam, and PCAP capture to a keyboard device.

[Details](https://openhardware.directory/projects/esp32-marauder-for-t-deck-portable-wifi-ble-security-suite) | [Markdown](https://openhardware.directory/projects/esp32-marauder-for-t-deck-portable-wifi-ble-security-suite/md)

## VoltLink Open Source KiCad Hardware Design

Complete open-source KiCad PCB design files for the VoltLink CP2102N USB-to-serial adapter and ESP32 programmer, including schematics, board layout, BOM, and Gerber files for DIY manufacturing.

[Details](https://openhardware.directory/projects/voltlink-open-source-kicad-hardware-design) | [Markdown](https://openhardware.directory/projects/voltlink-open-source-kicad-hardware-design/md)

## Oui-Spy Unified Blue Firmware

Multi-mode surveillance detection firmware combining Detector, Foxhunter, Flock-You, and Sky Spy into a single build with WiFi-based boot selector for the Oui-Spy ESP32-S3 board.

[Details](https://openhardware.directory/projects/oui-spy-unified-blue-firmware) | [Markdown](https://openhardware.directory/projects/oui-spy-unified-blue-firmware/md)

## Flash Shelly Relays with Tasmota or ESPHome Using VoltLink

Use the VoltLink CP2102N with its optional Shelly programming adapter to safely flash Tasmota or ESPHome firmware onto Shelly relays without mains power, powering them via USB during the process.

[Details](https://openhardware.directory/projects/flash-shelly-relays-with-tasmota-or-esphome-using-voltlink) | [Markdown](https://openhardware.directory/projects/flash-shelly-relays-with-tasmota-or-esphome-using-voltlink/md)

## ChameleonUltraGUI — Cross-Platform GUI for ChameleonUltra

Cross-platform GUI application built in Flutter for managing the ChameleonUltra and Chameleon Lite. Supports slot management, card reading, MIFARE cracking, and firmware updates across Windows, macOS, Linux, iOS, and Android.

[Details](https://openhardware.directory/projects/chameleon-ultra-gui) | [Markdown](https://openhardware.directory/projects/chameleon-ultra-gui/md)

## TinkerNav RTK Rover and Base Station Firmware

Official open-source firmware for TinkerNav RTK GNSS boards, enabling both RTK rover and base station modes with WiFi, LoRa, and NTRIP correction data support via ESP32-S3 and SkyTraq PX1125R.

[Details](https://openhardware.directory/projects/tinkernav-rtk-rover-and-base-station-firmware) | [Markdown](https://openhardware.directory/projects/tinkernav-rtk-rover-and-base-station-firmware/md)

## Flock-You: Surveillance Camera Detector

ESP32-S3 firmware that detects Flock Safety ALPR cameras and Raven gunshot detectors using BLE heuristics, with GPS wardriving, web dashboard, and KML/CSV/JSON export for Google Earth mapping.

[Details](https://openhardware.directory/projects/flock-you-surveillance-camera-detector) | [Markdown](https://openhardware.directory/projects/flock-you-surveillance-camera-detector/md)

## UWB Ranging & Localization with ESP32 DW3000

Getting started tutorial covering Ultra-Wideband ranging and localization using the Makerfabs ESP32 UWB DW3000 module with Arduino IDE, including anchor-tag setup and distance measurement.

[Details](https://openhardware.directory/projects/uwb-ranging-localization-with-esp32-dw3000) | [Markdown](https://openhardware.directory/projects/uwb-ranging-localization-with-esp32-dw3000/md)

## 3D Printable Protective Case for VoltLink CP2102N

Community-designed 3D printable enclosure for the VoltLink CP2102N USB serial adapter, featuring access for USB-C and pin headers, secured with M2.5 screws that double as feet.

[Details](https://openhardware.directory/projects/3d-printable-protective-case-for-voltlink-cp2102n) | [Markdown](https://openhardware.directory/projects/3d-printable-protective-case-for-voltlink-cp2102n/md)

## ChameleonUltra CLI — Python Command-Line Interface

Official Python CLI for the ChameleonUltra providing full device control, MIFARE cracking, card reading/writing, slot management, and scripting automation. The primary tool for power users and security professionals.

[Details](https://openhardware.directory/projects/chameleon-ultra-cli) | [Markdown](https://openhardware.directory/projects/chameleon-ultra-cli/md)

## TinkerRTK WiFi Base Station and Rover Setup

Step-by-step tutorial for building an RTK positioning system using two TinkerNav boards communicating over WiFi, achieving centimeter-level GPS accuracy with a local base station and rover.

[Details](https://openhardware.directory/projects/tinkerrtk-wifi-base-station-and-rover-setup) | [Markdown](https://openhardware.directory/projects/tinkerrtk-wifi-base-station-and-rover-setup/md)

## ESP32 UWB Indoor Positioning System

Real-time indoor positioning demo using 3 ESP32 UWB modules (2 anchors + 1 tag) with trilateration, UDP data streaming, and Python-based position visualization on PC.

[Details](https://openhardware.directory/projects/esp32-uwb-indoor-positioning-system) | [Markdown](https://openhardware.directory/projects/esp32-uwb-indoor-positioning-system/md)

## Sky-Spy: Drone Remote ID Detector

Dual-protocol drone detection firmware for the Oui-Spy that scans WiFi and BLE simultaneously to extract FAA Remote ID telemetry including GPS, altitude, speed, and operator location from up to 8 drones.

[Details](https://openhardware.directory/projects/sky-spy-drone-remote-id-detector) | [Markdown](https://openhardware.directory/projects/sky-spy-drone-remote-id-detector/md)

## Recording EEG From Visual Cortex Using BioAmp EXG Pill

Step-by-step tutorial for recording brainwaves from the visual cortex (O1/O2 positions) using BioAmp EXG Pill, Brain BioAmp Band, and an Arduino-compatible board with Spike Recorder visualization.

[Details](https://openhardware.directory/projects/recording-eeg-from-visual-cortex-using-bioamp-exg-pill) | [Markdown](https://openhardware.directory/projects/recording-eeg-from-visual-cortex-using-bioamp-exg-pill/md)

## VoltLink Shelly Adapter Production Test Jig

Automated test jig that chains six Shelly adapters in series with an ESP32 to verify VoltLink board quality before shipping, catching soldering defects on USB-C, QFN, and JST-SH connectors.

[Details](https://openhardware.directory/projects/voltlink-shelly-adapter-production-test-jig) | [Markdown](https://openhardware.directory/projects/voltlink-shelly-adapter-production-test-jig/md)

## HeishaMon Firmware

Open-source MQTT gateway firmware for Panasonic Aquarea heat pumps, enabling local monitoring and control via ESP8266 or ESP32-S3 with MQTT, HTTP JSON API, built-in rules engine, and 1-wire sensor support.

[Details](https://openhardware.directory/projects/heishamon-firmware) | [Markdown](https://openhardware.directory/projects/heishamon-firmware/md)

## UMotion: Multi-Anchor UWB Ranging with DW3000

Advanced UWB ranging firmware for Makerfabs ESP32 DW3000 supporting single/double-sided TWR, multi-anchor configurations, and distance matrix measurements for motion estimation research.

[Details](https://openhardware.directory/projects/umotion-multi-anchor-uwb-ranging-with-dw3000) | [Markdown](https://openhardware.directory/projects/umotion-multi-anchor-uwb-ranging-with-dw3000/md)

## ChameleonUltra Firmware — Open-Source nRF52840 NFC/RFID Firmware

GPL-3.0 licensed firmware for the ChameleonUltra built on the Nordic nRF52840 SDK. Handles dual-frequency card emulation, MIFARE cracking, BLE communication, and USB-C connectivity with a read-only bootloader preventing bricking.

[Details](https://openhardware.directory/projects/chameleon-ultra-firmware) | [Markdown](https://openhardware.directory/projects/chameleon-ultra-firmware/md)

## Recording EEG From Prefrontal Cortex Using BioAmp EXG Pill

Tutorial for recording brainwaves from the prefrontal cortex (Fp1/Fp2 positions) using BioAmp EXG Pill and Brain BioAmp Band with Arduino Uno and Spike Recorder visualization.

[Details](https://openhardware.directory/projects/recording-eeg-from-prefrontal-cortex-using-bioamp-exg-pill) | [Markdown](https://openhardware.directory/projects/recording-eeg-from-prefrontal-cortex-using-bioamp-exg-pill/md)

## Oui-Spy Detector: BLE Device Scanner

Standalone BLE scanning firmware for the Oui-Spy that detects targeted Bluetooth devices by MAC address or manufacturer OUI prefix with audio/visual alerts, web portal configuration, and persistent device history.

[Details](https://openhardware.directory/projects/oui-spy-detector-ble-device-scanner) | [Markdown](https://openhardware.directory/projects/oui-spy-detector-ble-device-scanner/md)

## TinkerRTK LoRa Base Station and Rover

Tutorial for setting up a long-range RTK positioning system using TinkerNav boards with TinkerSend LoRa radios, enabling RTCM correction data transmission over distances up to 6 km.

[Details](https://openhardware.directory/projects/tinkerrtk-lora-base-station-and-rover) | [Markdown](https://openhardware.directory/projects/tinkerrtk-lora-base-station-and-rover/md)

## DW3000 Arduino Library (Simplified)

Community-built simplified DW3000 Arduino library for the Makerfabs ESP32 UWB DW3000, offering readable code with examples for SPI communication, TX/RX, and double-sided two-way ranging.

[Details](https://openhardware.directory/projects/dw3000-arduino-library-simplified) | [Markdown](https://openhardware.directory/projects/dw3000-arduino-library-simplified/md)

## TinkerRTK ESPNow RTK Communication

Open-source Arduino project using ESP-NOW protocol for peer-to-peer RTK correction data exchange between TinkerNav boards, enabling infrastructure-free centimeter-level GPS positioning.

[Details](https://openhardware.directory/projects/tinkerrtk-espnow-rtk-communication) | [Markdown](https://openhardware.directory/projects/tinkerrtk-espnow-rtk-communication/md)

## Controlling LEDs With Your Mind (EEG) Using Arduino Uno R4

Build a brain-computer interface that reads EEG beta waves to illuminate LEDs on the Arduino Uno R4 LED matrix when you concentrate, using BioAmp EXG Pill and Brain BioAmp Band.

[Details](https://openhardware.directory/projects/controlling-leds-with-your-mind-eeg-using-arduino-uno-r4) | [Markdown](https://openhardware.directory/projects/controlling-leds-with-your-mind-eeg-using-arduino-uno-r4/md)

## ChameleonUltra Watchband Case — Covert Wearable 3D Print

3D-printable watchband case for the ChameleonUltra with two variants: a transparent version showing off the PCB and a covert solid version for red team operations. Fits standard 20mm watch bands with USB-C access.

[Details](https://openhardware.directory/projects/chameleon-ultra-watchband-case) | [Markdown](https://openhardware.directory/projects/chameleon-ultra-watchband-case/md)

## VoltLink Hardware Evolution — From Rev A to Rev E Design Walkthrough

Video series documenting the iterative hardware design of the VoltLink CP2102N across five PCB revisions, covering chip selection, ESD protection, DFM optimization, and a CP2104 LED bug discovery.

[Details](https://openhardware.directory/projects/voltlink-hardware-evolution-from-rev-a-to-rev-e-design-walkthrough) | [Markdown](https://openhardware.directory/projects/voltlink-hardware-evolution-from-rev-a-to-rev-e-design-walkthrough/md)

## Oui-Spy Foxhunter: BLE Direction Finder

Precision BLE proximity tracking firmware for the Oui-Spy with RSSI-based direction finding, seven graduated intensity levels, and variable-frequency audio feedback for radio foxhunting competitions.

[Details](https://openhardware.directory/projects/oui-spy-foxhunter-ble-direction-finder) | [Markdown](https://openhardware.directory/projects/oui-spy-foxhunter-ble-direction-finder/md)

## HeishaMon Home Assistant Integration

HACS-compatible Home Assistant integration for Panasonic Aquarea heat pumps via HeishaMon, providing native entities, climate controls, sensors, and multi-heatpump support through MQTT auto-discovery.

[Details](https://openhardware.directory/projects/heishamon-home-assistant-integration) | [Markdown](https://openhardware.directory/projects/heishamon-home-assistant-integration/md)

## LEDswarm: UWB-Coordinated LED Mesh Network

Rust firmware for Makerfabs ESP32 DW3000 that creates a UWB mesh network of LED controllers with automatic discovery, decimeter-level ranging, and coordinated lighting effects.

[Details](https://openhardware.directory/projects/ledswarm-uwb-coordinated-led-mesh-network) | [Markdown](https://openhardware.directory/projects/ledswarm-uwb-coordinated-led-mesh-network/md)

## Control the Flame of a Candle Using Your Focus (EEG)

A brain-computer interface project that uses EEG beta waves to control a virtual candle flame's brightness in real-time based on your concentration level, using Chords Web visualization.

[Details](https://openhardware.directory/projects/control-the-flame-of-a-candle-using-your-focus-eeg) | [Markdown](https://openhardware.directory/projects/control-the-flame-of-a-candle-using-your-focus-eeg/md)

## TinkerRTK WiFi NTRIP Client

Arduino sketches for connecting a TinkerNav board to an NTRIP caster over WiFi, enabling single-board RTK rover operation using publicly available or subscription-based correction data streams.

[Details](https://openhardware.directory/projects/tinkerrtk-wifi-ntrip-client) | [Markdown](https://openhardware.directory/projects/tinkerrtk-wifi-ntrip-client/md)

## Chamele-o-nization — ChameleonUltra Security Research Guide

In-depth security research guide by Oscar Alfonso Diaz comparing the ChameleonUltra with the ChameleonMini RevE. Covers MIFARE Classic cracking techniques, dual-frequency capabilities, and practical usage for access control security testing.

[Details](https://openhardware.directory/projects/chamele-o-nization-security-guide) | [Markdown](https://openhardware.directory/projects/chamele-o-nization-security-guide/md)

## ADX-MINI Open-Source Firmware for Digital HF QRP Transceiver

Open-source Arduino firmware for the ADX-MINI family of digital mode QRP transceivers (MINI, MI2, MI3), supporting FT8, FT4, JS8Call, and WSPR on HF bands from 160m to 6m with CAT control and OLED display.

[Details](https://openhardware.directory/projects/adx-mini-open-source-firmware-for-digital-hf-qrp-transceiver) | [Markdown](https://openhardware.directory/projects/adx-mini-open-source-firmware-for-digital-hf-qrp-transceiver/md)

## Oui-Spy Earrings: Wearable BLE Detector

Wearable PCB art earrings with XIAO ESP32-S3 modules and 100mAh batteries that function as fully operational BLE surveillance detectors with all Oui-Spy firmware capabilities.

[Details](https://openhardware.directory/projects/oui-spy-earrings-wearable-ble-detector) | [Markdown](https://openhardware.directory/projects/oui-spy-earrings-wearable-ble-detector/md)

## ESP32 DW3000 UWB 500m Long-Range Test

Long-range outdoor testing of the ESP32 DW3000 UWB module achieving over 500m distance, with tips on antenna placement, obstacle effects, and optimizing range performance.

[Details](https://openhardware.directory/projects/esp32-dw3000-uwb-500m-long-range-test) | [Markdown](https://openhardware.directory/projects/esp32-dw3000-uwb-500m-long-range-test/md)

## Controlling Video Game Using Brainwaves (EEG)

Build a brain-computer interface that classifies EEG signals into attentive and relaxed states to control a video game character, using machine learning with BioAmp EXG Pill and Python.

[Details](https://openhardware.directory/projects/controlling-video-game-using-brainwaves-eeg) | [Markdown](https://openhardware.directory/projects/controlling-video-game-using-brainwaves-eeg/md)

## GoHeishaMon

Golang port of HeishaMon firmware that runs directly on the Panasonic CZ-TAW1 WiFi adapter, enabling MQTT heat pump control without additional hardware by repurposing the factory WiFi module.

[Details](https://openhardware.directory/projects/goheishamon) | [Markdown](https://openhardware.directory/projects/goheishamon/md)

## TinkerRTK Cellular NTRIP with SIM7000

Arduino sketches for using TinkerNav with the TinkerSend Mobile SIM7000 4G module to download RTK corrections from an NTRIP caster over cellular, enabling rover operation in remote areas without WiFi.

[Details](https://openhardware.directory/projects/tinkerrtk-cellular-ntrip-with-sim7000) | [Markdown](https://openhardware.directory/projects/tinkerrtk-cellular-ntrip-with-sim7000/md)

## Mastering High Accuracy Ranging with DW3000

Video tutorial by Adam S. covering DW3000 UWB fundamentals, Makerfabs ESP32 UWB module setup, time-of-flight ranging, Apple U1 interoperability, and indoor/outdoor accuracy testing.

[Details](https://openhardware.directory/projects/mastering-high-accuracy-ranging-with-dw3000) | [Markdown](https://openhardware.directory/projects/mastering-high-accuracy-ranging-with-dw3000/md)

## Tracking Flock Cameras with Oui-Spy

Video tutorial and community guide demonstrating how to use the Oui-Spy with Flock-You firmware to detect and map Flock Safety automated license plate reader cameras in the field.

[Details](https://openhardware.directory/projects/tracking-flock-cameras-with-oui-spy) | [Markdown](https://openhardware.directory/projects/tracking-flock-cameras-with-oui-spy/md)

## Mind-Controlled Gaming: Build Your Own BCI

Build a brain-computer interface using the BioAmp EXG Pill and Arduino Uno R4 that enables video game control through focus detection and eye blink sensing via EEG and EOG signals.

[Details](https://openhardware.directory/projects/mind-controlled-gaming-build-your-own-bci) | [Markdown](https://openhardware.directory/projects/mind-controlled-gaming-build-your-own-bci/md)

## I2CSoilMoistureSensor Arduino Library

Arduino C++ library by Apollon77 for interfacing with the Chirp/Catnip I2C Soil Moisture Sensor. Provides methods for reading moisture, temperature, and light, plus sleep mode and multi-sensor support.

[Details](https://openhardware.directory/projects/i2csoilmoisturesensor-arduino-library) | [Markdown](https://openhardware.directory/projects/i2csoilmoisturesensor-arduino-library/md)

## ESP32 UWB Indoor Positioning with Python Visualization

Indoor 2D positioning system using three Makerfabs ESP32 UWB modules as anchors and tags. Calculates position via trilateration and displays real-time location on a Python GUI over UDP.

[Details](https://openhardware.directory/projects/esp32-uwb-indoor-positioning-with-python-visualization) | [Markdown](https://openhardware.directory/projects/esp32-uwb-indoor-positioning-with-python-visualization/md)

## WB2CBA ADX — Arduino Digital Modes HF Transceiver

The original open-source Arduino digital transceiver design by WB2CBA supporting FT8, FT4, JS8Call, and WSPR on 80m-10m bands. The foundation project that inspired the ADX-MINI, ADX-S, ADX-POCKET, and numerous community builds.

[Details](https://openhardware.directory/projects/wb2cba-adx-arduino-digital-modes-hf-transceiver) | [Markdown](https://openhardware.directory/projects/wb2cba-adx-arduino-digital-modes-hf-transceiver/md)

## Build a Meshtastic IoT Sensor Grid with ThinkNode M1 & M2

Step-by-step tutorial for building a decentralized IoT sensor network using ThinkNode M1 and M2 LoRa transceivers. Reads temperature, humidity, and pressure from a BME680 sensor and transmits data wirelessly via Meshtastic mesh protocol.

[Details](https://openhardware.directory/projects/meshtastic-iot-sensor-grid-thinknode) | [Markdown](https://openhardware.directory/projects/meshtastic-iot-sensor-grid-thinknode/md)

## ChameleonUltra for Red Team Operations — Field Guide

Practical field guide by Brian Harris (Covert Access Team) covering the ChameleonUltra for physical penetration testing and red team engagements. Evaluates real-world badge cloning, discreet carry, and operational use alongside Proxmark3.

[Details](https://openhardware.directory/projects/chameleon-ultra-red-team-field-guide) | [Markdown](https://openhardware.directory/projects/chameleon-ultra-red-team-field-guide/md)

## HeishaMoNR – Node-RED Heat Pump Control

Node-RED flow for local control of Panasonic Aquarea heat pumps via HeishaMon, featuring visual dashboards with charts, weather-compensated heating curves, and advanced automation logic.

[Details](https://openhardware.directory/projects/heishamonr-node-red-heat-pump-control) | [Markdown](https://openhardware.directory/projects/heishamonr-node-red-heat-pump-control/md)

## TinkerRTK on Hackaday.io

Hackaday.io project page for TinkerRTK, documenting the open-source modular RTK GPS system with SkyTraq PX1105R receiver and ESP32-S3, featuring build logs, schematics, and community discussion.

[Details](https://openhardware.directory/projects/tinkerrtk-on-hackaday-io) | [Markdown](https://openhardware.directory/projects/tinkerrtk-on-hackaday-io/md)

## Oui-Spy 3D Printed Cases and Accessories

Community-designed 3D printable cases and accessories for the Oui-Spy including a travel case, antenna case with SMA adapter slot, keychain mount, and tactical Yagi grip with Picatinny rail.

[Details](https://openhardware.directory/projects/oui-spy-3d-printed-cases-and-accessories) | [Markdown](https://openhardware.directory/projects/oui-spy-3d-printed-cases-and-accessories/md)

## Chirp-RPi Python Library for Raspberry Pi

Comprehensive Python library by Göran Lundberg for reading the Chirp I2C soil moisture sensor on Raspberry Pi. Supports calibrated moisture percentage, multiple temperature scales, deep sleep, and I2C address changes.

[Details](https://openhardware.directory/projects/chirp-rpi-python-library-for-raspberry-pi) | [Markdown](https://openhardware.directory/projects/chirp-rpi-python-library-for-raspberry-pi/md)

## Brain-Controlled Car: EEG + EMG Robotic Control

Control a robotic car wirelessly using brain signals for forward/reverse movement and muscle signals for steering, combining EEG and EMG via BLE with NPG Lite and XIAO ESP32-C6.

[Details](https://openhardware.directory/projects/brain-controlled-car-eeg-emg-robotic-control) | [Markdown](https://openhardware.directory/projects/brain-controlled-car-eeg-emg-robotic-control/md)

## ESP32 UWB Outdoor Positioning with OLED Display

Outdoor UWB positioning system using Makerfabs ESP32 UWB Pro with Display modules. Anchors and tags show real-time distance and position data on their built-in OLED screens, with Python visualization over UDP.

[Details](https://openhardware.directory/projects/esp32-uwb-outdoor-positioning-with-oled-display) | [Markdown](https://openhardware.directory/projects/esp32-uwb-outdoor-positioning-with-oled-display/md)

## Cowtown ADX Buildathon Project — Construction Manual and 8-Band Firmware

Community-driven ADX build project by VK2ARH with comprehensive construction manual, 8-band firmware (including 160m), LPF tuning guides, and buildathon resources used by amateur radio clubs worldwide.

[Details](https://openhardware.directory/projects/cowtown-adx-buildathon-project-construction-manual-and-8-band-firmware) | [Markdown](https://openhardware.directory/projects/cowtown-adx-buildathon-project-construction-manual-and-8-band-firmware/md)

## Exploring RFID/NFC — ChameleonUltra Unboxing and Setup Guide

Beginner-friendly walkthrough by Cesar Calderon covering the ChameleonUltra unboxing, initial setup, and first steps with NFC/RFID technology. Ideal for newcomers getting started with RFID security tools.

[Details](https://openhardware.directory/projects/chameleon-ultra-unboxing-setup-guide) | [Markdown](https://openhardware.directory/projects/chameleon-ultra-unboxing-setup-guide/md)

## Playing Games With Your Mind Using Arduino Uno R4

Use BioAmp EXG Pill and Brain BioAmp Band with Arduino Uno R4 to play games using brainwave-based focus detection and eye blink control for a hands-free gaming experience.

[Details](https://openhardware.directory/projects/playing-games-with-your-mind-using-arduino-uno-r4) | [Markdown](https://openhardware.directory/projects/playing-games-with-your-mind-using-arduino-uno-r4/md)

## Flock-You Community Documentation

Community-maintained documentation site for the Flock-You surveillance camera detection firmware, covering build instructions, web interface usage, detection methodologies, and BLE protocol details.

[Details](https://openhardware.directory/projects/flock-you-community-documentation) | [Markdown](https://openhardware.directory/projects/flock-you-community-documentation/md)

## Getting Started with Meshtastic: ThinkNode M1/M2 Setup Guide

Comprehensive getting-started guide for Meshtastic mesh networking using the ThinkNode M1 and M2. Covers unboxing, hardware teardown, Bluetooth pairing, frequency configuration, firmware updates, GPS setup, and real-world range testing.

[Details](https://openhardware.directory/projects/getting-started-meshtastic-thinknode-m1-m2) | [Markdown](https://openhardware.directory/projects/getting-started-meshtastic-thinknode-m1-m2/md)

## ESPHome Chirp I2C Sensor Component

ESPHome external component by dyptan-io for the Chirp / Catnip I2C soil moisture sensor on ESP32. Reads soil moisture, temperature, and light intensity with YAML-based configuration and Home Assistant integration.

[Details](https://openhardware.directory/projects/esphome-chirp-i2c-sensor-component) | [Markdown](https://openhardware.directory/projects/esphome-chirp-i2c-sensor-component/md)

## ESP32 UWB Tag and Anchor Ranging Example

Basic UWB ranging example for Makerfabs ESP32 UWB boards. One module acts as an anchor, another as a tag, measuring point-to-point distance using DW1000 Two-Way Ranging with ~20 cm accuracy.

[Details](https://openhardware.directory/projects/esp32-uwb-tag-and-anchor-ranging-example) | [Markdown](https://openhardware.directory/projects/esp32-uwb-tag-and-anchor-ranging-example/md)

## HeishaMonBoth – Dual Cloud and Local Control

Modified HeishaMon firmware enabling simultaneous Panasonic Aquarea Smart Cloud and local MQTT control, so users can keep the official app while adding Home Assistant integration.

[Details](https://openhardware.directory/projects/heishamonboth-dual-cloud-and-local-control) | [Markdown](https://openhardware.directory/projects/heishamonboth-dual-cloud-and-local-control/md)

## ChameleonUltra vs Proxmark3 — RFID Tool Comparison

Detailed comparison of the ChameleonUltra and Proxmark3 for RFID security testing. Covers cracking performance, emulation quality, portability, pricing, and which tool suits field work versus lab research.

[Details](https://openhardware.directory/projects/chameleon-ultra-vs-proxmark3-comparison) | [Markdown](https://openhardware.directory/projects/chameleon-ultra-vs-proxmark3-comparison/md)

## REAST ADX QRP Digital Transceiver Club Build

Community bulk-buy and buildathon of 30 ADX QRP transceiver kits organized by the Radio and Electronics Association of Southern Tasmania (REAST) with custom REAST-branded PCBs and guided build sessions.

[Details](https://openhardware.directory/projects/reast-adx-qrp-digital-transceiver-club-build) | [Markdown](https://openhardware.directory/projects/reast-adx-qrp-digital-transceiver-club-build/md)

## ESP32 UWB Long-Range Distance Tracker

A UWB distance tracking project using Makerfabs ESP32 UWB devices achieving ~130 m range with DW1000. Includes antenna delay calibration for optimal accuracy and WiFi connectivity on the tag side.

[Details](https://openhardware.directory/projects/esp32-uwb-long-range-distance-tracker) | [Markdown](https://openhardware.directory/projects/esp32-uwb-long-range-distance-tracker/md)

## Off-Grid Messaging and Location Sharing with ThinkNode M1

Hands-on guide to setting up off-grid messaging and GPS location sharing using the ThinkNode M1 and Meshtastic. Covers LoRa mesh networking fundamentals, device configuration, and practical use cases for outdoor communication without cellular coverage.

[Details](https://openhardware.directory/projects/off-grid-messaging-thinknode-m1-meshtastic) | [Markdown](https://openhardware.directory/projects/off-grid-messaging-thinknode-m1-meshtastic/md)

## Tasmota Chirp Soil Moisture Sensor Driver

Official Tasmota driver (I2cDriver33) for the Chirp / Catnip I2C soil moisture sensor. Supports auto-discovery of multiple sensors, sleep/wake control, and I2C address management on ESP8266 and ESP32.

[Details](https://openhardware.directory/projects/tasmota-chirp-soil-moisture-sensor-driver) | [Markdown](https://openhardware.directory/projects/tasmota-chirp-soil-moisture-sensor-driver/md)

## ESPHome Panasonic Aquarea Heat Pump

ESPHome-based alternative firmware for the HeishaMon PCB, enabling YAML-configured Panasonic Aquarea heat pump control with native Home Assistant API integration and OTA updates.

[Details](https://openhardware.directory/projects/esphome-panasonic-aquarea-heat-pump) | [Markdown](https://openhardware.directory/projects/esphome-panasonic-aquarea-heat-pump/md)

## EEG Band-Pass Filter for Clean Brain Signal Acquisition

Arduino firmware sketch that applies a 0.5-29.5 Hz 4th-order Butterworth band-pass filter to raw EEG data for clean electroencephalography recording with BioAmp EXG Pill.

[Details](https://openhardware.directory/projects/eeg-band-pass-filter-for-clean-brain-signal-acquisition) | [Markdown](https://openhardware.directory/projects/eeg-band-pass-filter-for-clean-brain-signal-acquisition/md)

## 3D-Printable Case for Makerfabs ESP32 UWB Pro

An OpenSCAD-designed 3D-printable enclosure for the Makerfabs ESP32 UWB Pro board. Parametric design with STL files ready for printing, protecting the board while maintaining port access.

[Details](https://openhardware.directory/projects/3d-printable-case-for-makerfabs-esp32-uwb-pro) | [Markdown](https://openhardware.directory/projects/3d-printable-case-for-makerfabs-esp32-uwb-pro/md)

## ESP Easy Soil Moisture Sensor Plugin (P047)

ESP Easy plugin P047 for the Chirp / Catnip I2C soil moisture sensor. Reads temperature, moisture, and light with configurable I2C addresses, sleep mode, and formula-based value recalculation on ESP8266.

[Details](https://openhardware.directory/projects/esp-easy-soil-moisture-sensor-plugin-p047) | [Markdown](https://openhardware.directory/projects/esp-easy-soil-moisture-sensor-plugin-p047/md)

## Elecrow Meshtastic Ecosystem: ThinkNode M1, M2, and CrowPanel

Comprehensive overview of Elecrow's Meshtastic device lineup including the ThinkNode M1, M2, and CrowPanel Advance 3.5-inch. Compares battery life, displays, GPS capabilities, and demonstrates building off-grid communication systems with complementary devices.

[Details](https://openhardware.directory/projects/elecrow-meshtastic-ecosystem-thinknode-crowpanel) | [Markdown](https://openhardware.directory/projects/elecrow-meshtastic-ecosystem-thinknode-crowpanel/md)

## ESP32 DW1000 UWB Indoor Positioning System Tutorial

Step-by-step tutorial from how2electronics covering indoor positioning with ESP32 and DW1000 UWB modules. Covers anchor/tag setup, distance measurement, and 2D location calculation using Makerfabs boards.

[Details](https://openhardware.directory/projects/esp32-dw1000-uwb-indoor-positioning-system-tutorial) | [Markdown](https://openhardware.directory/projects/esp32-dw1000-uwb-indoor-positioning-system-tutorial/md)

## ESPHome Louder ESP32 Media Player

Custom ESPHome component and configuration for the Louder ESP32 Rev-E board, enabling TAS5805M Class-D amplifier control as a Home Assistant media player with I2S audio output.

[Details](https://openhardware.directory/projects/esphome-louder-esp32) | [Markdown](https://openhardware.directory/projects/esphome-louder-esp32/md)

## BrainBay EEG Visualization With BioAmp Hardware

Connect BioAmp EXG Pill and Brain BioAmp Band to BrainBay open-source biosignal processing software for real-time EEG and EMG visualization on Windows.

[Details](https://openhardware.directory/projects/brainbay-eeg-visualization-with-bioamp-hardware) | [Markdown](https://openhardware.directory/projects/brainbay-eeg-visualization-with-bioamp-hardware/md)

## ADX-S Superhet QRP Transceiver Kit by CRKits

Improved ADX variant by Adam BD6CR featuring a superheterodyne receiver with 455 kHz IF and ceramic filter for reduced broadcast interference, available as a 4-band or 7-band kit supporting FT8, FT4, JS8Call, and WSPR.

[Details](https://openhardware.directory/projects/adx-s-superhet-qrp-transceiver-kit-by-crkits) | [Markdown](https://openhardware.directory/projects/adx-s-superhet-qrp-transceiver-kit-by-crkits/md)

## Getting Started with ESP32 DW1000 UWB Module

Beginner tutorial from how2electronics introducing UWB technology with the Makerfabs ESP32 DW1000 module. Covers basic setup, first ranging measurements, and understanding UWB fundamentals.

[Details](https://openhardware.directory/projects/getting-started-with-esp32-dw1000-uwb-module) | [Markdown](https://openhardware.directory/projects/getting-started-with-esp32-dw1000-uwb-module/md)

## pyChirpLib MicroPython Library

MicroPython library by scopelemanuele for the Chirp / Catnip I2C soil moisture sensor. Enables MicroPython-based microcontrollers to read soil moisture, temperature, and light over I2C with minimal code.

[Details](https://openhardware.directory/projects/pychirplib-micropython-library) | [Markdown](https://openhardware.directory/projects/pychirplib-micropython-library/md)

## HeishaMon OpenTherm Thermostat Control

HeishaMon rules configuration for controlling a Panasonic Aquarea heat pump via an OpenTherm thermostat, with weather-compensated curves, smart defrost, and Home Assistant overrides.

[Details](https://openhardware.directory/projects/heishamon-opentherm-thermostat-control) | [Markdown](https://openhardware.directory/projects/heishamon-opentherm-thermostat-control/md)

## Chords Web: Browser-Based Biosignal Visualization

Transform your Arduino into a biosignal acquisition tool with Chords Web, visualizing and recording EEG, EMG, EOG, and ECG data directly in your browser using BioAmp hardware.

[Details](https://openhardware.directory/projects/chords-web-browser-based-biosignal-visualization) | [Markdown](https://openhardware.directory/projects/chords-web-browser-based-biosignal-visualization/md)

## micropython-chirp MicroPython Driver

MicroPython driver by robberwick for the Chirp I2C soil moisture sensor. MIT-licensed library with ReadTheDocs documentation for reading moisture data on MicroPython-compatible boards.

[Details](https://openhardware.directory/projects/micropython-chirp-micropython-driver) | [Markdown](https://openhardware.directory/projects/micropython-chirp-micropython-driver/md)

## QMK/Vial Firmware for Micro Journal Rev.3 Nadia

Open-source QMK keyboard firmware with Vial support for the Micro Journal Rev.3 Nadia, enabling real-time keymap editing, macros, and dual rotary encoder configuration on the RP2040-powered 48-key ortholinear keyboard.

[Details](https://openhardware.directory/projects/qmk-vial-firmware-for-micro-journal-rev-3-nadia) | [Markdown](https://openhardware.directory/projects/qmk-vial-firmware-for-micro-journal-rev-3-nadia/md)

## DIY Whole-Home Audio Speaker with Louder ESP32

Build guide for converting a passive Tozzi One speaker kit into a WiFi-enabled active speaker using the Louder ESP32 and Squeezelite firmware for Home Assistant whole-home audio.

[Details](https://openhardware.directory/projects/diy-whole-home-audio-speaker-louder-esp32) | [Markdown](https://openhardware.directory/projects/diy-whole-home-audio-speaker-louder-esp32/md)

## Chords Python: Record Biosignal Data From BioAmp Hardware

Python tool for recording and streaming EEG, EMG, EOG, and ECG data from BioAmp hardware including Brain BioAmp Band, with LSL streaming and CSV export support.

[Details](https://openhardware.directory/projects/chords-python-record-biosignal-data-from-bioamp-hardware) | [Markdown](https://openhardware.directory/projects/chords-python-record-biosignal-data-from-bioamp-hardware/md)

## UkieLab AInk — AI-First E-Ink Canvas Firmware

Official firmware for the UkieLab WiFi Weather Station 7.5\" that turns the ESP32 + 7.5\" e-paper display into an AI-first canvas. AI agents discover the device via mDNS and send JSON drawing commands over HTTP to render dashboards, weather, art, and notifications.

[Details](https://openhardware.directory/projects/ukielab-aink-ai-first-e-ink-canvas-firmware) | [Markdown](https://openhardware.directory/projects/ukielab-aink-ai-first-e-ink-canvas-firmware/md)

## FT8 QRP Operating Guide with CRKits ADX-S Radio

Practical blog tutorial by Stephen Smith covering ADX-S kit assembly, WSJT-X configuration for FT8 digital mode, antenna tips, and real-world QRP contacts across Western Canada and the US Pacific.

[Details](https://openhardware.directory/projects/ft8-qrp-operating-guide-with-crkits-adx-s-radio) | [Markdown](https://openhardware.directory/projects/ft8-qrp-operating-guide-with-crkits-adx-s-radio/md)

## Armachat CircuitPython Firmware

Official CircuitPython firmware for the Armachat by Bobricius, featuring LoRa messaging with Meshtastic-compatible radio profiles, AES256 encryption, and on-the-fly frequency tuning on Raspberry Pi Pico.

[Details](https://openhardware.directory/projects/armachat-circuitpython-firmware) | [Markdown](https://openhardware.directory/projects/armachat-circuitpython-firmware/md)

## ThinkNode M1 Range Testing and Battery Optimization

In-depth performance review of the ThinkNode M1 covering standardized urban range testing (1.71km achieved), battery optimization (4-5 days with GPS off), firmware updates to InkUI, and antenna considerations for maximizing Meshtastic mesh network coverage.

[Details](https://openhardware.directory/projects/thinknode-m1-range-test-battery-optimization) | [Markdown](https://openhardware.directory/projects/thinknode-m1-range-test-battery-optimization/md)

## Zelkova Tree Monitoring with Chirp Sensors

Open-source environmental monitoring project deploying 40 Chirp I2C soil moisture sensors in Crete for long-term tree health monitoring. Demonstrates large-scale capacitive soil sensing for forestry research.

[Details](https://openhardware.directory/projects/zelkova-tree-monitoring-with-chirp-sensors) | [Markdown](https://openhardware.directory/projects/zelkova-tree-monitoring-with-chirp-sensors/md)

## Dynamic Electricity Price Heat Pump Control

Optimizes Panasonic Aquarea heat pump operation based on dynamic electricity prices (Tibber) or solar PV surplus, reducing energy costs by shifting heating to cheaper rate periods.

[Details](https://openhardware.directory/projects/dynamic-electricity-price-heat-pump-control) | [Markdown](https://openhardware.directory/projects/dynamic-electricity-price-heat-pump-control/md)

## Louder ESP32 AirPlay 2 Receiver

AirPlay 2 audio receiver firmware for the Louder ESP32-S3, enabling wireless streaming from Apple devices with full TAS5805M amplifier control and hardware volume.

[Details](https://openhardware.directory/projects/louder-esp32-airplay2-receiver) | [Markdown](https://openhardware.directory/projects/louder-esp32-airplay2-receiver/md)

## Capacitive Soil Moisture Measuring with I2C (ATtiny85)

Instructables tutorial by diy_bloke for building a DIY capacitive soil moisture sensor with I2C output using an ATtiny85. Inspired by the Chirp sensor, it covers PCB construction, firmware, and Arduino master code.

[Details](https://openhardware.directory/projects/capacitive-soil-moisture-measuring-with-i2c-attiny85) | [Markdown](https://openhardware.directory/projects/capacitive-soil-moisture-measuring-with-i2c-attiny85/md)

## Armachat Compact User Guide

Community-maintained documentation for the Armachat Compact, including a quick start guide, bill of materials, board overview, assembly instructions, and developer resources for building your own LoRa messenger.

[Details](https://openhardware.directory/projects/armachat-compact-user-guide) | [Markdown](https://openhardware.directory/projects/armachat-compact-user-guide/md)

## OZ1BXM ADX-S Build Guide — 7-Band Arduino Digimode Transceiver

Detailed build blog by Lars Petersen OZ1BXM documenting the assembly of a 7-band CRKits ADX-S transceiver kit, with practical tips on LPF module assembly, inductor placement, and operating with WSJT-X or FT8CN on Android.

[Details](https://openhardware.directory/projects/oz1bxm-adx-s-build-guide-7-band-arduino-digimode-transceiver) | [Markdown](https://openhardware.directory/projects/oz1bxm-adx-s-build-guide-7-band-arduino-digimode-transceiver/md)

## Gnat LoRaWAN Asset Tracker Firmware

Arduino firmware for the Gnat LoRa+GNSS Asset Tracker featuring wake-on-motion tracking, CayenneLPP encoding, and ultra-low-power GNSS management with hot/cold start control.

[Details](https://openhardware.directory/projects/gnat-lorawan-asset-tracker-firmware) | [Markdown](https://openhardware.directory/projects/gnat-lorawan-asset-tracker-firmware/md)

## ThinkNode M1 Custom 3D Printed Enclosure

Community-designed 3D printable cases for the Elecrow ThinkNode M1 Meshtastic transceiver. Multiple designs available on MakerWorld featuring heat-set inserts, optimized screw holes, and ergonomic form factors for outdoor use.

[Details](https://openhardware.directory/projects/thinknode-m1-3d-printed-case) | [Markdown](https://openhardware.directory/projects/thinknode-m1-3d-printed-case/md)

## Micro Journal Rev.3 Nadia DIY Build — Phone Writing Station

A complete DIY build project for the Micro Journal Rev.3 Nadia, a 48-key ortholinear keyboard with phone holder that transforms any smartphone into a distraction-free writing station using 3D-printed parts and an RP2040 PCB.

[Details](https://openhardware.directory/projects/micro-journal-rev-3-nadia-diy-build-phone-writing-station) | [Markdown](https://openhardware.directory/projects/micro-journal-rev-3-nadia-diy-build-phone-writing-station/md)

## ESP32 E-Paper Weather Display (esp32-weather-epd)

A polished, low-power ESP32 weather station for 7.5\" e-paper displays. Fetches current conditions and 5-day forecasts from OpenWeatherMap, shows indoor readings from a BME280 sensor, and runs 6+ months on a 5000mAh battery with 30-minute refresh intervals.

[Details](https://openhardware.directory/projects/esp32-e-paper-weather-display-esp32-weather-epd) | [Markdown](https://openhardware.directory/projects/esp32-e-paper-weather-display-esp32-weather-epd/md)

## Heisha Weather Control – Adaptive Heat Pump Manager

Home Assistant add-on for Panasonic Aquarea heat pumps with HeishaMon that uses weather forecasts and a learning algorithm to optimize water temperature and energy efficiency automatically.

[Details](https://openhardware.directory/projects/heisha-weather-control-adaptive-heat-pump-manager) | [Markdown](https://openhardware.directory/projects/heisha-weather-control-adaptive-heat-pump-manager/md)

## Chirp I2C Sensor with Particle Photon

Community integration of the Chirp I2C soil moisture sensor with the Particle Photon IoT platform. Includes a ported library and cloud-connected moisture monitoring for wireless plant care applications.

[Details](https://openhardware.directory/projects/chirp-i2c-sensor-with-particle-photon) | [Markdown](https://openhardware.directory/projects/chirp-i2c-sensor-with-particle-photon/md)

## Squeezelite-ESP32 Multi-Room Audio

Full-featured audio streaming firmware for ESP32 boards supporting Spotify Connect, AirPlay, Bluetooth, and Logitech Media Server with synchronized multi-room playback.

[Details](https://openhardware.directory/projects/squeezelite-esp32-multi-room-audio) | [Markdown](https://openhardware.directory/projects/squeezelite-esp32-multi-room-audio/md)

## ADXI — ADX Improved USB-C Digital Modes Transceiver

Modernized fork of the ADX transceiver by VK2DIY featuring single USB-C interface, KiCad design files, integrated SWR/power metering, SMT components, PlatformIO firmware, and expanded band support from 2200m to 70cm.

[Details](https://openhardware.directory/projects/adxi-adx-improved-usb-c-digital-modes-transceiver) | [Markdown](https://openhardware.directory/projects/adxi-adx-improved-usb-c-digital-modes-transceiver/md)

## Armachat2 Async Firmware Redesign

Redesigned Armachat CircuitPython firmware using asyncio cooperative multitasking for better performance, supporting Max, Compact, and Watch hardware variants with persistent configuration.

[Details](https://openhardware.directory/projects/armachat2-async-firmware-redesign) | [Markdown](https://openhardware.directory/projects/armachat2-async-firmware-redesign/md)

## G6EJD ESP32 E-Paper Weather Display

A classic ESP32 e-paper weather display supporting 2.9\", 4.2\", and 7.5\" screens. Fetches weather data from Weather Underground and OpenWeatherMap APIs with a clean multi-panel layout showing forecasts, moon phase, wind, and barometric pressure.

[Details](https://openhardware.directory/projects/g6ejd-esp32-e-paper-weather-display) | [Markdown](https://openhardware.directory/projects/g6ejd-esp32-e-paper-weather-display/md)

## Indian Ocean Sea Turtle Tracker (IoT)

Marine turtle tracking device based on CMWX1ZZABZ and MAX M8Q GNSS, with dual barometers for underwater depth measurement, designed for year-long deployment on sea turtles.

[Details](https://openhardware.directory/projects/indian-ocean-sea-turtle-tracker-iot) | [Markdown](https://openhardware.directory/projects/indian-ocean-sea-turtle-tracker-iot/md)

## Cassidy Williams' Micro Journal Build — Custom Keycaps and Layout

Developer Cassidy Williams documents her Micro Journal build experience, featuring custom DSS Tecla keycaps, lubricated NK Dry Black switches, a personalized keymap, and a custom loading screen on the ESP32-based writerDeck.

[Details](https://openhardware.directory/projects/cassidy-williams-micro-journal-build-custom-keycaps-and-layout) | [Markdown](https://openhardware.directory/projects/cassidy-williams-micro-journal-build-custom-keycaps-and-layout/md)

## ThinkNode M1 Firmware, 3D Files, and Example Code Repository

Official Elecrow GitHub repository for the ThinkNode M1 containing factory firmware, 3D CAD enclosure files, component datasheets, and example code for the nRF52840-based LoRa Meshtastic transceiver with SX1262 radio and SSD1681 e-paper driver.

[Details](https://openhardware.directory/projects/thinknode-m1-firmware-repository) | [Markdown](https://openhardware.directory/projects/thinknode-m1-firmware-repository/md)

## HeishaMon Cascade Control

Modified HeishaMon firmware optimized for cascade operation of multiple Panasonic Aquarea heat pumps, coordinating load balancing and staging across units for maximum efficiency.

[Details](https://openhardware.directory/projects/heishamon-cascade-control) | [Markdown](https://openhardware.directory/projects/heishamon-cascade-control/md)

## EvilCrowRF Custom Firmware with Flipper Zero Compatibility

Alternative firmware for Evil Crow RF V2 adding Flipper Zero .SUB file support, Kaiju signal analysis, rolljam/rollback attacks, frequency scanner, and a 34+ protocol brute-force engine with a redesigned web interface.

[Details](https://openhardware.directory/projects/evilcrowrf-custom-firmware-with-flipper-zero-compatibility) | [Markdown](https://openhardware.directory/projects/evilcrowrf-custom-firmware-with-flipper-zero-compatibility/md)

## Armachat Multi-Device CircuitPython Port

Community CircuitPython port of the Armachat firmware supporting Max, Compact, and Watch variants with improved configuration persistence and user-friendly confirmation prompts.

[Details](https://openhardware.directory/projects/armachat-multi-device-circuitpython-port) | [Markdown](https://openhardware.directory/projects/armachat-multi-device-circuitpython-port/md)

## Esparagus Snapclient Multi-Room Audio

Snapcast client firmware for ESP32 audio boards enabling perfectly synchronized multi-room audio playback with automatic server discovery and browser-based flashing.

[Details](https://openhardware.directory/projects/esparagus-snapclient-multi-room) | [Markdown](https://openhardware.directory/projects/esparagus-snapclient-multi-room/md)

## ArduinoCore-stm32l0 for Gnat and CMWX1ZZABZ Boards

Arduino board support package for STM32L0-based LoRaWAN devices including the Gnat, Grasshopper, and Cricket, enabling Arduino IDE programming with LoRaWAN and GNSS libraries.

[Details](https://openhardware.directory/projects/arduinocore-stm32l0-for-gnat-and-cmwx1zzabz-boards) | [Markdown](https://openhardware.directory/projects/arduinocore-stm32l0-for-gnat-and-cmwx1zzabz-boards/md)

## DX-FT8 — Standalone FT8 Multiband Tablet Transceiver by WB2CBA

Standalone FT8 QRP transceiver with built-in touchscreen GUI on STM32F746, eliminating the need for a PC. Operates on 5-7 HF bands from USB power bank at QRPp levels or up to 5W with external 12V supply.

[Details](https://openhardware.directory/projects/dx-ft8-standalone-ft8-multiband-tablet-transceiver-by-wb2cba) | [Markdown](https://openhardware.directory/projects/dx-ft8-standalone-ft8-multiband-tablet-transceiver-by-wb2cba/md)

## Micro Journal on Hackster.io — WriterDeck Experience Overview

Hackster.io coverage of the Micro Journal project by Un Kyu Lee, documenting the evolution from phone-based Rev.3 Nadia to modular ESP32 revisions, with custom distraction-free writing firmware and Google Drive sync.

[Details](https://openhardware.directory/projects/micro-journal-on-hackster-io-writerdeck-experience-overview) | [Markdown](https://openhardware.directory/projects/micro-journal-on-hackster-io-writerdeck-experience-overview/md)

## Weatherman — ESPHome E-Paper Dashboard for Home Assistant

An elegant ESPHome-based dashboard for a 7.5\" Waveshare e-paper display connected to Home Assistant. Shows weather conditions, forecasts, and transit info with motion-triggered refreshes to extend display life. No soldering required.

[Details](https://openhardware.directory/projects/weatherman-esphome-e-paper-dashboard-for-home-assistant) | [Markdown](https://openhardware.directory/projects/weatherman-esphome-e-paper-dashboard-for-home-assistant/md)

## Grasshopper TTN Ultrasonic Sensor Node

Low-power LoRaWAN sensor node using the Grasshopper development board with an MB1242 ultrasonic distance sensor, transmitting readings to The Things Network with 30-minute deep sleep intervals.

[Details](https://openhardware.directory/projects/grasshopper-ttn-ultrasonic-sensor-node) | [Markdown](https://openhardware.directory/projects/grasshopper-ttn-ultrasonic-sensor-node/md)

## Louder ESP32 Tasmota I2S Audio

Tasmota firmware configuration for the Louder ESP32 with I2S audio support, enabling MQTT-controlled audio playback for Domoticz, OpenHAB, and other MQTT-based home automation systems.

[Details](https://openhardware.directory/projects/louder-esp32-tasmota-i2s) | [Markdown](https://openhardware.directory/projects/louder-esp32-tasmota-i2s/md)

## Armassi: IRC-Style Armachat Client

An Irssi-inspired terminal IRC client clone for the Armachat LoRa communicator, bringing a familiar text-based chat interface to off-grid mesh messaging over LoRa radio.

[Details](https://openhardware.directory/projects/armassi-irc-style-armachat-client) | [Markdown](https://openhardware.directory/projects/armassi-irc-style-armachat-client/md)

## Bee Data Logger Deep Sleep SD Card Data Logging

Low-power environmental data logging example using the Bee Data Logger's deep sleep mode (~21uA) with RTC timestamps and SD card storage. Logs sensor readings at configurable intervals for months on a single LiPo battery.

[Details](https://openhardware.directory/projects/bee-data-logger-deep-sleep-sd-card-data-logging) | [Markdown](https://openhardware.directory/projects/bee-data-logger-deep-sleep-sd-card-data-logging/md)

## EvilCrowRF HUN73R.0047 — Modern UI Firmware with Mobile App

Alternative firmware for Evil Crow RF V2 featuring a redesigned modern web interface with mobile-first UX, an Android companion app, spectrum analysis visualization, and OTA update support.

[Details](https://openhardware.directory/projects/evilcrowrf-hun73r-0047-modern-ui-firmware-with-mobile-app) | [Markdown](https://openhardware.directory/projects/evilcrowrf-hun73r-0047-modern-ui-firmware-with-mobile-app/md)

## Hackable CMWX1ZZABZ LoRa Devices

Comprehensive Hackaday.io project documenting Tlera Corp's CMWX1ZZABZ-based LoRa device family including Gnat, Grasshopper, Cricket, and LoRaSensorTile with power benchmarks and build logs.

[Details](https://openhardware.directory/projects/hackable-cmwx1zzabz-lora-devices) | [Markdown](https://openhardware.directory/projects/hackable-cmwx1zzabz-lora-devices/md)

## ADX-POCKET — Shirt-Pocket Digital Modes HF Transceiver with CAT Control

Ultra-compact dual-board ADX variant by WB2CBA integrating USB hub, sound card, serial CAT control, and ATmega328P on a single controller board. Operates at 700mW from USB or up to 5W with external 12V power.

[Details](https://openhardware.directory/projects/adx-pocket-shirt-pocket-digital-modes-hf-transceiver-with-cat-control) | [Markdown](https://openhardware.directory/projects/adx-pocket-shirt-pocket-digital-modes-hf-transceiver-with-cat-control/md)

## ESPHome eInk Weather & Tasks Boards for Home Assistant

Weather and task list boards for 7.5\" tricolor e-paper displays using ESPHome and Home Assistant. Features deep sleep with HA-controlled wake schedules, battery monitoring, and separate YAML configs for weather and tasks displays.

[Details](https://openhardware.directory/projects/esphome-eink-weather-tasks-boards-for-home-assistant) | [Markdown](https://openhardware.directory/projects/esphome-eink-weather-tasks-boards-for-home-assistant/md)

## Micro Journal Rev.3 Nadia Custom Colorway 3D Prints

A collection of 3D-printable colorway designs for the Micro Journal Rev.3 Nadia keyboard enclosure, featuring five predefined color schemes and open STL files for custom combinations.

[Details](https://openhardware.directory/projects/micro-journal-rev-3-nadia-custom-colorway-3d-prints) | [Markdown](https://openhardware.directory/projects/micro-journal-rev-3-nadia-custom-colorway-3d-prints/md)

## Bee Data Logger MQTT with SD Card Backup

Send sensor readings to an MQTT broker over WiFi with automatic SD card backup when the network is unavailable. Combines real-time IoT connectivity with reliable local storage for remote deployments.

[Details](https://openhardware.directory/projects/bee-data-logger-mqtt-with-sd-card-backup) | [Markdown](https://openhardware.directory/projects/bee-data-logger-mqtt-with-sd-card-backup/md)

## LoRaWAN Birdhouse with Grasshopper

Solar-powered LoRaWAN birdhouse using the Grasshopper board to monitor bird activity via a load cell, transmitting weight, temperature, and battery voltage to TTN and Datacake.

[Details](https://openhardware.directory/projects/lorawan-birdhouse-with-grasshopper) | [Markdown](https://openhardware.directory/projects/lorawan-birdhouse-with-grasshopper/md)

## ESP Audio Boards v2 and Louder ESP32 on Hackaday

Hackaday.io project documenting the Louder ESP32 and ESP32 Audio Boards v2 series by Sonocotta, with hardware design logs, firmware guides, and community discussion.

[Details](https://openhardware.directory/projects/esp-audio-boards-v2-louder-esp32-hackaday) | [Markdown](https://openhardware.directory/projects/esp-audio-boards-v2-louder-esp32-hackaday/md)

## EvilCrowRF V2 BLE Mobile App Firmware with nRF24 Support

Complete firmware suite for Evil Crow RF V2 with BLE-based mobile app control via Flutter, 33+ protocol brute-force with De Bruijn sequences, nRF24 attack capabilities, and Python spectrum analysis utilities.

[Details](https://openhardware.directory/projects/evilcrowrf-v2-ble-mobile-app-firmware-with-nrf24-support) | [Markdown](https://openhardware.directory/projects/evilcrowrf-v2-ble-mobile-app-firmware-with-nrf24-support/md)

## Hackaday Feature — ESP32 Distraction-Free Writing with Micro Journal

Hackaday coverage of the Micro Journal writerDeck project, detailing the custom ESP32 text editor firmware with Google Drive sync, handwired ortholinear keyboard build, and community discussion around distraction-free writing devices.

[Details](https://openhardware.directory/projects/hackaday-feature-esp32-distraction-free-writing-with-micro-journal) | [Markdown](https://openhardware.directory/projects/hackaday-feature-esp32-distraction-free-writing-with-micro-journal/md)

## E-Ink Weather Board — ESPHome Weather Forecast Display for Home Assistant

A clean ESPHome weather forecast display for a 7.5\" Waveshare e-paper screen with Home Assistant integration. Shows weather conditions in an IKEA RODALM frame with HA-controlled refresh intervals and deep sleep support to prevent display degradation.

[Details](https://openhardware.directory/projects/e-ink-weather-board-esphome-weather-forecast-display-for-home-assistant) | [Markdown](https://openhardware.directory/projects/e-ink-weather-board-esphome-weather-forecast-display-for-home-assistant/md)

## Armachat LoRa Doomsday Communicator Build

Build guide for the original Armachat pocket LoRa communicator by Bobricius, featuring a QWERTY keyboard, TFT display, RFM95 radio module, and 18650 battery for off-grid messaging up to 4km range.

[Details](https://openhardware.directory/projects/armachat-lora-doomsday-communicator-build) | [Markdown](https://openhardware.directory/projects/armachat-lora-doomsday-communicator-build/md)

## Bee Data Logger NTP-Synced RTC Time Server

Synchronize the Bee Data Logger's DS3231 RTC with an NTP time server over WiFi, then use the precise RTC timestamps for offline data logging. Ensures accurate timestamps even without internet access.

[Details](https://openhardware.directory/projects/bee-data-logger-ntp-synced-rtc-time-server) | [Markdown](https://openhardware.directory/projects/bee-data-logger-ntp-synced-rtc-time-server/md)

## MicroPython ESP32 7.5\" E-Paper Weather Display

A MicroPython weather station using an ESP32 with a 7.5\" Waveshare e-paper display and DHT20 sensor. Connects to WiFi, fetches live weather data from OpenWeatherMap, and displays forecasts alongside local room temperature and humidity readings.

[Details](https://openhardware.directory/projects/micropython-esp32-7-5-e-paper-weather-display) | [Markdown](https://openhardware.directory/projects/micropython-esp32-7-5-e-paper-weather-display/md)

## CMWX1ZZABZ Arduino Sketches for Grasshopper

Collection of Arduino sketches for the Grasshopper LoRaWAN board including LoRaWAN test, IMU sensor fusion with LSM6DSM/LIS2MDL/LPS22HB, RTC, DAC/ADC, and I2C slave examples.

[Details](https://openhardware.directory/projects/cmwx1zzabz-arduino-sketches-for-grasshopper) | [Markdown](https://openhardware.directory/projects/cmwx1zzabz-arduino-sketches-for-grasshopper/md)

## EvilCrowRF V2 RF Brute-Force Firmware for Fixed-Code Systems

Dedicated brute-force firmware for Evil Crow RF V2 targeting 34+ fixed-code RF protocols including CAME, Nice FLO, Princeton, and Chamberlain across 300-928 MHz with precise OOK timing.

[Details](https://openhardware.directory/projects/evilcrowrf-v2-rf-brute-force-firmware-for-fixed-code-systems) | [Markdown](https://openhardware.directory/projects/evilcrowrf-v2-rf-brute-force-firmware-for-fixed-code-systems/md)

## KBD News Feature — Micro Journal Ortholinear WriterDeck Keyboard

KBD News coverage of the Micro Journal Rev.3 Nadia, a 30-key handwired offset monoblock split keyboard by Un Kyu Lee designed for distraction-free writing, with ESP32 controller and Google Drive sync.

[Details](https://openhardware.directory/projects/kbd-news-feature-micro-journal-ortholinear-writerdeck-keyboard) | [Markdown](https://openhardware.directory/projects/kbd-news-feature-micro-journal-ortholinear-writerdeck-keyboard/md)

## Remote Attic Temperature Monitor with Bee Data Logger

Monitor remote attic or crawlspace temperatures over extended periods using the Bee Data Logger's ultra-low-power deep sleep mode. Logs temperature data to SD card for seasonal analysis and HVAC optimization.

[Details](https://openhardware.directory/projects/remote-attic-temperature-monitor-with-bee-data-logger) | [Markdown](https://openhardware.directory/projects/remote-attic-temperature-monitor-with-bee-data-logger/md)

## Armachat Meshtastic Protocol Integration

Guide to integrating Meshtastic mesh networking protocol with the Armachat communicator, enabling multi-hop message relay, store-and-forward routing, and interoperability with the broader Meshtastic network.

[Details](https://openhardware.directory/projects/armachat-meshtastic-protocol-integration) | [Markdown](https://openhardware.directory/projects/armachat-meshtastic-protocol-integration/md)

## ESP32-DIV

Open-source wireless network analysis tool built on ESP32 with 2.8" ILI9341 display, triple NRF24 modules for 2.4GHz scanning, CC1101 sub-GHz transceiver, and SD card logging.

[Details](https://openhardware.directory/projects/esp32-div) | [Markdown](https://openhardware.directory/projects/esp32-div/md)

## EvilMouse — Mousejacking Attack Firmware for Evil Crow RF V2

Firmware combining sub-GHz RF replay with 2.4 GHz mousejacking attacks on the Evil Crow RF V2, using both CC1101 modules and the NRF24L01 to exploit vulnerable wireless mice and keyboards.

[Details](https://openhardware.directory/projects/evilmouse-mousejacking-attack-firmware-for-evil-crow-rf-v2) | [Markdown](https://openhardware.directory/projects/evilmouse-mousejacking-attack-firmware-for-evil-crow-rf-v2/md)

## Hackable CMWX1ZZABZ LoRa Devices — Grasshopper Open Hardware Project

Open hardware project documenting the Grasshopper, LoRaSensorTile, and Cricket boards built on the CMWX1ZZABZ module, with schematics, BOM, and design files on Hackaday.io.

[Details](https://openhardware.directory/projects/hackable-cmwx1zzabz-lora-devices-grasshopper-open-hardware-project) | [Markdown](https://openhardware.directory/projects/hackable-cmwx1zzabz-lora-devices-grasshopper-open-hardware-project/md)

## Rain Gauge Data Logger with Bee Data Logger

Build a battery-powered rain gauge that logs rainfall measurements with RTC timestamps to an SD card. Uses the Bee Data Logger's ADC inputs to read a tipping bucket rain gauge sensor for long-term weather tracking.

[Details](https://openhardware.directory/projects/rain-gauge-data-logger-with-bee-data-logger) | [Markdown](https://openhardware.directory/projects/rain-gauge-data-logger-with-bee-data-logger/md)

## ECRFV2 Dual Jammer — Simultaneous Dual-Frequency RF Jamming

Lightweight jamming firmware for Evil Crow RF V2 that uses both CC1101 modules simultaneously to jam two different sub-GHz frequencies at once, with simple two-button physical controls.

[Details](https://openhardware.directory/projects/ecrfv2-dual-jammer-simultaneous-dual-frequency-rf-jamming) | [Markdown](https://openhardware.directory/projects/ecrfv2-dual-jammer-simultaneous-dual-frequency-rf-jamming/md)

## ArduinoCore-stm32l0 — Arduino Core for Grasshopper LoRaWAN Boards

Arduino core providing native LoRaWAN stack support for CMWX1ZZABZ-based boards including the Grasshopper, enabling sketch development without AT commands via USB programming.

[Details](https://openhardware.directory/projects/arduinocore-stm32l0-arduino-core-for-grasshopper-lorawan-boards) | [Markdown](https://openhardware.directory/projects/arduinocore-stm32l0-arduino-core-for-grasshopper-lorawan-boards/md)

## Beehive Health Monitor with Bee Data Logger

Monitor beehive temperature, humidity, and weight using the Bee Data Logger's Qwiic sensor ports and deep sleep mode. Track hive conditions to predict swarming, assess colony health, and optimize honey production.

[Details](https://openhardware.directory/projects/beehive-health-monitor-with-bee-data-logger) | [Markdown](https://openhardware.directory/projects/beehive-health-monitor-with-bee-data-logger/md)

## Airlytix ES1 ESPHome Configuration

Official ESPHome YAML configuration for the Airlytix ES1 air quality sensor, featuring SEN55, SCD41, SHT40, DPS310, VEML6040 sensors and a custom sound level meter component with I2S microphone support.

[Details](https://openhardware.directory/projects/airlytix-es1-esphome-configuration) | [Markdown](https://openhardware.directory/projects/airlytix-es1-esphome-configuration/md)

## TrackSenger DIY Meshtastic Communicator

DIY compact Meshtastic communicator build using the Heltec Wireless Tracker with ESP32-S3, SX1262 LoRa, GPS, and a push-button keyboard for off-grid mesh messaging and GPS tracking.

[Details](https://openhardware.directory/projects/tracksenger-diy-meshtastic-communicator) | [Markdown](https://openhardware.directory/projects/tracksenger-diy-meshtastic-communicator/md)

## EvilCrowPyRF — Python CLI for RF Signal Management

Python command-line tool for managing Evil Crow RF signal captures, enabling scripted receive, transmit, save, and replay operations with support for Tesla signals, jamming, and button assignment.

[Details](https://openhardware.directory/projects/evilcrowpyrf-python-cli-for-rf-signal-management) | [Markdown](https://openhardware.directory/projects/evilcrowpyrf-python-cli-for-rf-signal-management/md)

## Bee Minder — LoRaWAN Environmental Monitor on Grasshopper

Ultra-compact 18x18mm environmental monitor by Kris Winer for beehives, greenhouses, and birdhouses with BME280, BMA400, and VEML6075 sensors, transmitting via LoRaWAN.

[Details](https://openhardware.directory/projects/bee-minder-lorawan-environmental-monitor-on-grasshopper) | [Markdown](https://openhardware.directory/projects/bee-minder-lorawan-environmental-monitor-on-grasshopper/md)

## Battery Performance Tracker with Bee Data Logger

Use the Bee Data Logger's built-in battery voltage monitoring and ADC channels to track LiPo battery discharge curves over time. Log voltage readings to SD card for analyzing battery health and capacity degradation.

[Details](https://openhardware.directory/projects/battery-performance-tracker-with-bee-data-logger) | [Markdown](https://openhardware.directory/projects/battery-performance-tracker-with-bee-data-logger/md)

## Airlytix ES1 3D-Printable Case Design

Open-source 3D-printable enclosure for the Airlytix ES1 air quality sensor, available as STEP, STL, and FreeCAD source files. Compact 62.5 x 63 x 34 mm design with wall-mount clip.

[Details](https://openhardware.directory/projects/airlytix-es1-3d-printable-case-design) | [Markdown](https://openhardware.directory/projects/airlytix-es1-3d-printable-case-design/md)

## MechSenger Mechanical Keyboard Meshtastic Build

Single-board Meshtastic communicator with a mechanical keyboard and 2.42\" OLED display, designed for rugged off-grid mesh messaging using the Heltec Tracker with ESP32-S3 and SX1262 LoRa.

[Details](https://openhardware.directory/projects/mechsenger-mechanical-keyboard-meshtastic) | [Markdown](https://openhardware.directory/projects/mechsenger-mechanical-keyboard-meshtastic/md)

## DIY Evil Crow RF V2 el Cheapo — Budget PCB Build from Scratch

Open-source custom PCB design for building an Evil Crow RF V2 clone from off-the-shelf parts including an ESP32 DevKit, two CC1101 modules, and a MicroSD card reader, with gerber files for PCB fabrication.

[Details](https://openhardware.directory/projects/diy-evil-crow-rf-v2-el-cheapo-budget-pcb-build-from-scratch) | [Markdown](https://openhardware.directory/projects/diy-evil-crow-rf-v2-el-cheapo-budget-pcb-build-from-scratch/md)

## Airlytix ES1 Home Assistant Automation Blueprints

Ready-to-use Home Assistant automation examples for the Airlytix ES1: CO2-based ventilation control, PM2.5 air purifier triggers, VOC kitchen extraction, nighttime noise alerts, and air quality notifications.

[Details](https://openhardware.directory/projects/airlytix-es1-home-assistant-automation-blueprints) | [Markdown](https://openhardware.directory/projects/airlytix-es1-home-assistant-automation-blueprints/md)

## Bee Data Logger Getting Started with CircuitPython

Complete beginner guide to setting up the Bee Data Logger with CircuitPython. Covers flashing firmware, using the RGB LED, reading the RTC, listing SD card files, monitoring battery voltage, and detecting USB power.

[Details](https://openhardware.directory/projects/bee-data-logger-getting-started-with-circuitpython) | [Markdown](https://openhardware.directory/projects/bee-data-logger-getting-started-with-circuitpython/md)

## Evil Crow RF V2 Setup and RF Attack Tutorial

Step-by-step tutorial covering Evil Crow RF V2 firmware installation on Ubuntu, upgrading to custom firmware via OTA, and practical demonstrations of RF signal jamming and replay attacks with RTL-SDR verification.

[Details](https://openhardware.directory/projects/evil-crow-rf-v2-setup-and-rf-attack-tutorial) | [Markdown](https://openhardware.directory/projects/evil-crow-rf-v2-setup-and-rf-attack-tutorial/md)

## Armachat LoRa Doomsday Communicator

Open-source off-grid LoRa QWERTY communicator for long-range text messaging without infrastructure. Features automatic message resending, contact management, and 4+ km range. Winner of Hackaday Prize 2020.

[Details](https://openhardware.directory/projects/armachat-lora-doomsday-communicator) | [Markdown](https://openhardware.directory/projects/armachat-lora-doomsday-communicator/md)

## Airlytix ES1 Getting Started with Home Assistant

Step-by-step tutorial for setting up the Airlytix ES1 air quality sensor: WiFi configuration, Home Assistant ESPHome integration, entity reference, sensor calibration offsets, and quality threshold customization.

[Details](https://openhardware.directory/projects/airlytix-es1-getting-started-with-home-assistant) | [Markdown](https://openhardware.directory/projects/airlytix-es1-getting-started-with-home-assistant/md)

## Bee Data Logger PlatformIO and Arduino Setup Guide

Set up the Bee Data Logger with PlatformIO and the Arduino framework. Install the BeeDataLogger Arduino Helper library and explore examples for battery monitoring, RGB LED control, RTC, ADC reading, and SD card logging.

[Details](https://openhardware.directory/projects/bee-data-logger-platformio-and-arduino-setup-guide) | [Markdown](https://openhardware.directory/projects/bee-data-logger-platformio-and-arduino-setup-guide/md)

## Armachat CircuitPython LoRa Messenger

CircuitPython-based LoRa messenger firmware for Armachat devices, running on both ESP32-S3 and Raspberry Pi Pico with a 2.8\" IPS display, RFM95 radio, and fully open-source transparent code.

[Details](https://openhardware.directory/projects/armachat-circuitpython-lora-messenger) | [Markdown](https://openhardware.directory/projects/armachat-circuitpython-lora-messenger/md)

## ESPHome Sound Level Meter Component

Custom ESPHome external component for measuring environmental noise levels (Leq, Lmin, Lmax, Lpeak) with A/C/Z frequency weightings using I2S microphones. Used by the Airlytix ES1 for sound monitoring.

[Details](https://openhardware.directory/projects/esphome-sound-level-meter-component) | [Markdown](https://openhardware.directory/projects/esphome-sound-level-meter-component/md)

## Build an Armachat LoRa Communicator (Make: Magazine)

Step-by-step Make: Magazine tutorial for building the Armachat LoRa communicator — a battery-powered text walkie-talkie with QWERTY keyboard, RFM95 radio, and 4+ km range using only ~25 components.

[Details](https://openhardware.directory/projects/armachat-lora-communicator-make-magazine) | [Markdown](https://openhardware.directory/projects/armachat-lora-communicator-make-magazine/md)

## Airlytix ES1 Review: ESPHome Air Quality Monitor

CNX Software's review of the Airlytix ES1 ESPHome-based environment monitor covering its SEN55, SCD41, SHT40, DPS310, and VEML6040 sensor suite, Home Assistant integration, pricing, and comparison with other air quality devices.

[Details](https://openhardware.directory/projects/airlytix-es1-review-esphome-air-quality-monitor) | [Markdown](https://openhardware.directory/projects/airlytix-es1-review-esphome-air-quality-monitor/md)

## Tasmota DS18B20 Temperature Sensor Node

Build a WiFi temperature monitoring node using a DS18B20 1-Wire sensor and any ESP8266/ESP32 board running Tasmota. Supports up to 8 sensors per GPIO with MQTT publishing to Home Assistant.

[Details](https://openhardware.directory/projects/tasmota-ds18b20-temperature-sensor-node) | [Markdown](https://openhardware.directory/projects/tasmota-ds18b20-temperature-sensor-node/md)

## Tasmota BME280 Environmental Sensor Station

Build a WiFi environmental monitoring station with BME280 sensor measuring temperature, humidity, and barometric pressure. Uses I2C on any ESP8266/ESP32 with Tasmota. Under $6 total cost.

[Details](https://openhardware.directory/projects/tasmota-bme280-environmental-sensor-station) | [Markdown](https://openhardware.directory/projects/tasmota-bme280-environmental-sensor-station/md)

## Tasmota PIR Motion Sensor with Home Assistant

Build a WiFi motion sensor using AM312 or HC-SR501 PIR sensor with ESP8266/ESP32 and Tasmota. Publishes motion events via MQTT for Home Assistant automations like lights and alarms.

[Details](https://openhardware.directory/projects/tasmota-pir-motion-sensor-with-home-assistant) | [Markdown](https://openhardware.directory/projects/tasmota-pir-motion-sensor-with-home-assistant/md)

## Tasmota Motorized Roller Blinds

Automate roller blinds with Tasmota using a Sonoff Dual R3 or Shelly Plus 2PM. Supports AC/DC motors and stepper motors with position tracking, MQTT control, and Home Assistant cover integration.

[Details](https://openhardware.directory/projects/tasmota-motorized-roller-blinds) | [Markdown](https://openhardware.directory/projects/tasmota-motorized-roller-blinds/md)

## Tasmota Air Quality Sensor (PMS5003 Particulate Matter)

Build a WiFi air quality sensor using a Plantower PMS5003 particulate matter sensor with Wemos D1 Mini and Tasmota. Measures PM1.0, PM2.5, and PM10 with MQTT publishing for health monitoring.

[Details](https://openhardware.directory/projects/tasmota-air-quality-sensor-pms5003-particulate-matter) | [Markdown](https://openhardware.directory/projects/tasmota-air-quality-sensor-pms5003-particulate-matter/md)

## Tasmota MH-Z19B CO2 Monitor

Build a WiFi CO2 monitor using MH-Z19B NDIR sensor with ESP8266/ESP32 and Tasmota. Measures 0-5000ppm CO2 concentration for indoor air quality and ventilation automation via MQTT.

[Details](https://openhardware.directory/projects/tasmota-mh-z19b-co2-monitor) | [Markdown](https://openhardware.directory/projects/tasmota-mh-z19b-co2-monitor/md)

## Tasmota WS2812B Addressable LED Controller

Control WS2812B/SK6812 addressable LED strips with Tasmota on ESP8266 or ESP32. Full RGB color control, animations via Berry scripting, Alexa/Hue emulation, and MQTT integration for smart lighting.

[Details](https://openhardware.directory/projects/tasmota-ws2812b-addressable-led-controller) | [Markdown](https://openhardware.directory/projects/tasmota-ws2812b-addressable-led-controller/md)

## Tasmota IR Remote Control Hub

Build a WiFi IR blaster and receiver with Tasmota to control TVs, ACs, and other IR devices via MQTT and Home Assistant. Supports learning mode, all major protocols, and rules-based automation.

[Details](https://openhardware.directory/projects/tasmota-ir-remote-control-hub) | [Markdown](https://openhardware.directory/projects/tasmota-ir-remote-control-hub/md)

## Tasmota PZEM-004T Whole-House Energy Monitor

Monitor whole-house or circuit-level power consumption using a PZEM-004T energy meter with ESP8266 and Tasmota. Measures voltage, current, power, energy, frequency, and power factor via MQTT.

[Details](https://openhardware.directory/projects/tasmota-pzem-004t-whole-house-energy-monitor) | [Markdown](https://openhardware.directory/projects/tasmota-pzem-004t-whole-house-energy-monitor/md)

## Tasmota Zigbee Gateway Bridge

Build a WiFi-to-Zigbee bridge using Sonoff Zigbee Bridge Pro or DIY ESP32 + CC2652P setup with Tasmota. Connects 128+ Zigbee sensors and actuators to MQTT for Home Assistant integration.

[Details](https://openhardware.directory/projects/tasmota-zigbee-gateway-bridge) | [Markdown](https://openhardware.directory/projects/tasmota-zigbee-gateway-bridge/md)

## Tasmota TuyaMCU Device Conversion

Convert cloud-dependent Tuya WiFi devices to local-only control with Tasmota. Covers flashing, dpId mapping, and full control of dimmers, plugs, fans, thermostats, and RGB lights via MQTT.

[Details](https://openhardware.directory/projects/tasmota-tuyamcu-device-conversion) | [Markdown](https://openhardware.directory/projects/tasmota-tuyamcu-device-conversion/md)

## Tasmota ESP32 BLE Sensor Gateway

Use an ESP32 with Tasmota as a Bluetooth Low Energy gateway to bridge Xiaomi Mijia, MiFlora, and other BLE sensors to WiFi/MQTT. Passive scanning with no pairing required for most sensors.

[Details](https://openhardware.directory/projects/tasmota-esp32-ble-sensor-gateway) | [Markdown](https://openhardware.directory/projects/tasmota-esp32-ble-sensor-gateway/md)

## NSPanel Lovelace UI — Home Assistant Dashboard on Sonoff NSPanel

Transform the Sonoff NSPanel into a full Home Assistant dashboard using Tasmota Berry and the community NSPanel Lovelace UI firmware. Control lights, climate, media, and scenes from the touchscreen.

[Details](https://openhardware.directory/projects/nspanel-lovelace-ui-home-assistant-dashboard-on-sonoff-nspanel) | [Markdown](https://openhardware.directory/projects/nspanel-lovelace-ui-home-assistant-dashboard-on-sonoff-nspanel/md)

## Tasmota Matter Smart Home Device

Turn an ESP32-C3/S2/S3 board into a Matter-compatible smart home device with Tasmota. Works natively with Apple Home, Amazon Alexa, Google Home, and Home Assistant without any cloud or bridge.

[Details](https://openhardware.directory/projects/tasmota-matter-smart-home-device) | [Markdown](https://openhardware.directory/projects/tasmota-matter-smart-home-device/md)

## Tasmota Smart Meter Interface (SML/Modbus Energy Reader)

Read electricity, gas, and water meters with Tasmota using IR optical heads, RS485 Modbus, or SML protocol. Supports 50+ meter types including Landis+Gyr, ABB, EasyMeter, and Kamstrup for utility monitoring.

[Details](https://openhardware.directory/projects/tasmota-smart-meter-interface-sml-modbus-energy-reader) | [Markdown](https://openhardware.directory/projects/tasmota-smart-meter-interface-sml-modbus-energy-reader/md)

## Tasmota 4-Relay Home Automation with Alexa Voice Control

Build a 4-channel smart relay controller with physical buttons and Alexa voice control using NodeMCU/ESP32 and Tasmota. Includes PCB Gerber files for a custom board and step-by-step wiring guide.

[Details](https://openhardware.directory/projects/tasmota-4-relay-home-automation-with-alexa-voice-control) | [Markdown](https://openhardware.directory/projects/tasmota-4-relay-home-automation-with-alexa-voice-control/md)

## Zephyr RTOS — Scalable Real-Time Operating System for IoT

Open-source RTOS under the Linux Foundation supporting 500+ boards across ARM, RISC-V, x86, and Xtensa architectures. Features multi-threading, BLE 5.0 mesh, native networking stack, and power management for resource-constrained IoT devices.

[Details](https://openhardware.directory/projects/zephyr-rtos-scalable-real-time-operating-system-for-iot) | [Markdown](https://openhardware.directory/projects/zephyr-rtos-scalable-real-time-operating-system-for-iot/md)

## ZMK Firmware — Wireless Keyboard Firmware Built on Zephyr

Modern, open-source wireless keyboard firmware built on Zephyr RTOS with BLE-first architecture, split keyboard support, and MIT license. The dominant firmware for wireless mechanical keyboards with 3,900+ GitHub stars.

[Details](https://openhardware.directory/projects/zmk-firmware-wireless-keyboard-firmware-built-on-zephyr) | [Markdown](https://openhardware.directory/projects/zmk-firmware-wireless-keyboard-firmware-built-on-zephyr/md)

## ZSWatch — Open-Source Smartwatch with Zephyr Firmware

Fully open-source smartwatch with custom nRF5340 hardware and Zephyr RTOS firmware. Features 1.28-inch round touchscreen, BMI270 IMU, heart rate, magnetometer, microphone, and BLE companion apps for iOS and Android.

[Details](https://openhardware.directory/projects/zswatch-open-source-smartwatch-with-zephyr-firmware) | [Markdown](https://openhardware.directory/projects/zswatch-open-source-smartwatch-with-zephyr-firmware/md)

## InfiniTime — Open-Source Firmware for PineTime Smartwatch

Community-developed C++ firmware for the Pine64 PineTime smartwatch built on FreeRTOS. Features BLE notifications, step counting, heart rate monitoring, multiple watch faces, and OTA updates with 3,200+ GitHub stars.

[Details](https://openhardware.directory/projects/infinitime-open-source-firmware-for-pinetime-smartwatch) | [Markdown](https://openhardware.directory/projects/infinitime-open-source-firmware-for-pinetime-smartwatch/md)

## Matterbridge

Plugin manager that bridges existing smart home ecosystems (Zigbee2MQTT, Shelly, Home Assistant) into Matter — pair once, all devices appear in Apple Home, Google Home, Alexa, and more.

[Details](https://openhardware.directory/projects/matterbridge) | [Markdown](https://openhardware.directory/projects/matterbridge/md)

## Home Assistant Matter Hub

Publishes Home Assistant entities as Matter devices, allowing Apple Home, Google Home, and Alexa to control your HA devices locally over Matter without cloud dependency. (Project is end-of-life as of Jan 2026; active fork: RiDDiX/home-assistant-matter-hub.)

[Details](https://openhardware.directory/projects/home-assistant-matter-hub) | [Markdown](https://openhardware.directory/projects/home-assistant-matter-hub/md)

## WLED Matter Bridge

Automatically discovers WLED LED controllers on your network and exposes them as Matter light devices — works with ESP32 and ESP8266, compatible with Apple Home, Google Home, and Home Assistant.

[Details](https://openhardware.directory/projects/wled-matter-bridge) | [Markdown](https://openhardware.directory/projects/wled-matter-bridge/md)

## Espressif ESP-Matter SDK

Espressif's official Matter SDK for ESP32 series SoCs — provides simplified APIs, production references, and tools to build certified Matter 1.0–1.5 devices using ESP-IDF on ESP32-C6, ESP32-H2, ESP32-S3, and more.

[Details](https://openhardware.directory/projects/espressif-esp-matter-sdk) | [Markdown](https://openhardware.directory/projects/espressif-esp-matter-sdk/md)

## Matter SDK — ConnectedHomeIP

The official open-source Matter (formerly Project CHIP) reference SDK maintained by the Connectivity Standards Alliance — the foundation for all Matter device implementations across Apple, Google, Amazon, and open hardware.

[Details](https://openhardware.directory/projects/matter-sdk-connectedhomeip) | [Markdown](https://openhardware.directory/projects/matter-sdk-connectedhomeip/md)

## Armbian

Debian/Ubuntu-based Linux distribution for 100+ ARM and RISC-V single-board computers, with optimized kernels, a powerful build framework, and pre-built images for every supported board.

[Details](https://openhardware.directory/projects/armbian) | [Markdown](https://openhardware.directory/projects/armbian/md)