# 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.

**42 project listed.**

## 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-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)

## 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)

## T-Watch S3 ESPHome Integration for Home Assistant

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

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

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

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

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

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

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

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

## 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)

## 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)

## 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)

## 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)

## 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)

## ESP32 Arduino Matter — Build Matter Smart Home Devices

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

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

## 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)

## HeishaMon Firmware

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

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

## 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)

## 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)

## 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)

## 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)

## Tasmota Chirp Soil Moisture Sensor Driver

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

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

## ESPHome Panasonic Aquarea Heat Pump

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

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

## 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)

## ESPHome Louder ESP32 Media Player

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

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

## BrainBay EEG Visualization With BioAmp Hardware

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

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

## 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)

## Chords Python: Record Biosignal Data From BioAmp Hardware

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

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

## Louder ESP32 AirPlay 2 Receiver

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

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

## Chirp I2C Sensor with Particle Photon

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

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

## Squeezelite-ESP32 Multi-Room Audio

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

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

## 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)

## 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)

## 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)

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

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

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

## Armachat Meshtastic Protocol Integration

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

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

## 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)

## 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)