# 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. **137 project listed.** ## 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) ## 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 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 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-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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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-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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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) ## 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 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) ## 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)