All Projects

An open-source smartwatch with a 1.54in e-paper screen and ESP32, hackable watch faces in Arduino.

A wall-mounted 7.5in e-paper weather display on an ESP32 that runs for months on one battery charge.

Turns cheap second-hand electronic shelf labels into a Wi-Fi-managed e-ink display fleet via an ESP32 access point.

A community guide, pinouts and examples for the ~$15 ESP32 board with a built-in 2.8in resistive touchscreen.

Official ESPHome configs that turn ESP32-S3 boxes into local wake-word voice satellites for Home Assistant Assist.

The go-to firmware for controlling WS2812B and similar LED strips from a phone, with 100+ effects and Home Assistant support.

A DIY smart wall clock that drives a 64x64 HUB75 RGB matrix from an ESP32, with pixel-art clockfaces.

Turns an ESP32 with an I2S DAC into a synced multi-room speaker for Logitech Media Server, AirPlay and Bluetooth.

A friendlier, feature-rich version of Espressif's camera example for the $8 ESP32-CAM board.

Adds a touchscreen, PID temperature control, brew timer and steam modes to a Gaggia Classic via ESP32 boards.

Push-to-talk walkie-talkies made from ESP32s, an I2S mic and amp, talking over Wi-Fi or ESP-NOW.

A home-made voice assistant that detects a wake word locally on an ESP32 using a TensorFlow Lite model.

A very popular firmware that turns ESP32-S3 boards into an LLM voice assistant using the MCP protocol.

An LVGL-based smartwatch firmware for the ESP32 LilyGO T-Watch with apps, BLE notifications and Wi-Fi.

A polished smartwatch-style LVGL interface for the cheap ESP32-2424S012 round touchscreen board, paired via the Chronos app.

Espressif's open-source mini drone firmware for ESP32/S2/S3, flown from a phone app over Wi-Fi.

An open-hardware ESP32 board that measures up to 6 circuits (expandable) with CT clamps, works with ESPHome and Home Assistant.

Open firmware that makes cheap LoRa boards into an off-grid encrypted text mesh, paired with your phone.

A haptic input knob with software-defined detents and endstops, built from a BLDC motor, encoder and round LCD on ESP32.

An ESP32-S3 smart knob inspired by SmartKnob, with an LVGL UI, MQTT smart-home control and Surface Dial mode.

A Tamagotchi-style pet on an ESP32-S3 with a color TFT that eats nearby Wi-Fi networks to stay healthy.

A pocket mini TV that plays MJPEG video from microSD or Wi-Fi on Waveshare's ESP32-S3 1.69in board.

A sonar-style radar that shows live nearby aircraft from ADS-B data on a 1.28in round screen, compass-stabilised.

A two-wheeled balancing robot using an ESP32, MPU6050 IMU and DRV8825-driven stepper motors.

Open firmware for a 4-DOF ESP32-controlled desktop robotic arm with web control and ROS2 support.

An ESPHome config for a DIY air-quality monitor measuring CO2, particulates, temperature, humidity and pressure.

An all-in-one ESPHome air monitor showing temperature, humidity, CO2 and PM2.5 with 12-hour trend charts on a small screen.

A cloud-free ESP32 thermostat with touchscreen UI, Home Assistant integration and forecast-aware behaviour.

A WS2812B 8x32 matrix display that shows clock, pixel-art animations and smart-home notifications via MQTT or HTTP.

Open PCB and CAD files for an ESP32 colour e-paper photo frame using a 7.3in Spectra 6 display in a standard picture frame.

Controls OpenTherm gas boilers from an ESP32 with PID/weather-compensated heating and full Home Assistant integration.

Firmware for ESP32 + CC2652 boards that turns them into Ethernet or Wi-Fi Zigbee coordinators for Zigbee2MQTT and ZHA.

A solar-powered, 3D-printed ESP32 watering system that checks soil moisture twice a day and pumps water as needed.

Remote keyboard, video and mouse control of any computer over the network, even in the BIOS, using a Raspberry Pi.

A DNS sinkhole that blocks ads and trackers for every device on your network, classic first Raspberry Pi project.

Open-source modular smart-mirror software showing calendar, weather and news behind a two-way mirror, usually on a Pi.

A Raspberry Pi Zero W with an e-ink face that learns to capture Wi-Fi handshakes, framed as a virtual pet.

Open-source upgrade that turns off-the-shelf robotic mowers into RTK GPS-accurate, map-based lawn robots.

Generates DVI (HDMI) video signals from a bare RP2040 Pico using the PIO state machines – no video chip needed.

Official RP2040 firmware that turns a Pico (or the Debug Probe product) into a CMSIS-DAP SWD debugger.

A 64-voice, 16-channel multi-timbral wavetable synthesizer for the RP2350 Pico 2 with I2S or USB audio.

A pocket game console on the Raspberry Pi Pico with a 3.2in ILI9341 touchscreen and 14 built-in games.

An extensible hotkey firmware for the Adafruit MacroPad RP2040 with Blender, MIDI, DaVinci and more profiles.

The classic open-source g-code interpreter that turns an Arduino Uno into a 3-axis CNC controller.

A tiny ATmega328-based logger that writes serial data to a microSD card with almost no host code.

A modular two-wheel balancing robot using gimbal BLDC motors and the SimpleFOC library on Arduino-class boards.

A simple Arduino Uno weather station with a Waveshare 4.3in e-ink display, BME280 and DS3231 clock.

Turns cheap STM32 boards into an oscilloscope, logic analyzer, voltmeter, PWM and signal generator controlled from a PC app.

A self-contained scope on an STM32F401 Black Pill with a colour TFT, on-screen measurements and UART export.

A minimalist STM32F103 oscilloscope inspired by Ray Burnette's $10 Arduino O-Scope idea.

The community FreeRTOS firmware that turns the $30 PineTime (nRF52832) into a fully open smartwatch.

An open Pro Micro-shaped nRF52840 board that lets you build wireless ZMK/QMK keyboards.

Zephyr firmware that turns an nRF52840 into an Apple Find My network accessory using OpenHaystack.

Official open firmware for the RuuviTag environmental sensor beacon (nRF52832) broadcasting BLE sensor data.