# 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.

**108 project listed.**

## 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-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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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-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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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)

## 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 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 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)