Arduino

ArduinoBoytrash80/Arduinoboy

Arduino firmware enabling serial MIDI communication with Nintendo Game Boy for music applications like LSDJ and Nanoloop.

Arduino Game Boy Printer Emulatormofosyne/arduino-gameboy-printer-emulator

An Arduino-based emulator that captures images from Game Boy games via the link cable, replacing the original Game Boy Printer.

Arduino Transmitter for ELRSkkbin505/Arduino-Transmitter-for-ELRS

An Arduino-based DIY RC transmitter designed for ExpressLRS external TX modules, featuring simple hardware and open-source firmware.

ESP32-BLECollectortobozo/ESP32-BLECollector

A passive BLE scanner with a graphical UI that collects and persistently stores device data in an SQLite database on an SD card for ESP32-based hardware.

ArduinoBLEarduino-libraries/ArduinoBLE

Enables Bluetooth Low Energy connectivity for Arduino boards, supporting both peripheral and central modes.

arduino-canbus-monitorlatonita/arduino-canbus-monitor

An Arduino-based CAN bus monitoring tool implementing the SLCAN protocol for low-speed automotive diagnostics.

ESPHelperItKindaWorks/ESPHelper

A C++ library that simplifies WiFi and MQTT connectivity for ESP8266/ESP32 with automatic reconnection, OTA updates, and web configuration.

WifiEspNowyoursunny/WifiEspNow

Arduino library for ESP-NOW, a connectionless WiFi communication protocol on ESP8266 and ESP32.

openLRSngopenLRSng/openLRSng

Configurable firmware for openLRS compatible UHF TX/RX systems used in RC and drone applications.

arduino-esp8266-alexa-wemo-switchkakopappa/arduino-esp8266-alexa-wemo-switch

An Arduino ESP8266 project that emulates a WeMo switch to control devices via Amazon Alexa.

ThingPulse esp8266-spotify-remoteThingPulse/esp8266-spotify-remote

Control Spotify playback from an ESP8266 microcontroller with a color touch display, showing album art and track info.

mGBtrash80/mGB

A Gameboy cartridge program that turns Nintendo Gameboy into a full MIDI-supported sound module.

ESP8266MQTTMeshPhracturedBlue/ESP8266MQTTMesh

A self-assembling mesh network library for ESP8266 devices using MQTT for communication and supporting over-the-air updates.

RotorHazardRotorHazard/RotorHazard

Open-source timing and event management system for FPV drone racing using video signal tracking.

Basecampct-Open-Source/Basecamp

An Arduino library to simplify the basics of IoT projects for the ESP32 microcontroller.

ros2arduinoROBOTIS-GIT/ros2arduino

An Arduino library enabling Arduino boards to communicate with ROS2 via XRCE-DDS over Serial, UDP, or TCP.

Adafruit IO Arduino Libraryadafruit/Adafruit_IO_Arduino

Arduino library for connecting hardware to Adafruit IO via WiFi, cellular, or ethernet modules.

HealthyPiProtocentral/protocentral-healthypi-v3

An open-source Raspberry Pi HAT that transforms the Pi into a full-featured vital sign monitor for ECG, SpO2, and respiration.

TTSjscrane/TTS

An Arduino library for text-to-speech synthesis using PWM or DAC outputs with external amplifier.

CanCatatlas0fd00m/CanCat

An open-source multi-purpose tool for interacting with Controller Area Networks (CAN) used in vehicles and building automation.

Knobbyquadule/knobby

An open-source hardware remote control for Spotify that helps you discover new music and control playback on any Spotify Connect device.

Arilux_AL-LC0Xmertenats/Arilux_AL-LC0X

Alternative firmware for Arilux AL-LC0X LED controllers using MQTT and TLS for reliable smart home integration.

openXsensoropenXsensor/openXsensor

Arduino-based telemetry system for RC models, supporting multiple sensors and transmitter protocols.

Makelangelo-firmwareMarginallyClever/Makelangelo-firmware

Open-source CNC firmware for diverse robotic systems including polargraphs, robot arms, and delta robots.

Real-time Simon Saysgrpc-ecosystem/grpc-simon-says

A multiplayer Simon Says game demonstrating bidirectional gRPC streaming across multiple client platforms.

PenPlotterRickMcConney/PenPlotter

A polar coordinate pen plotter controller using Repetier firmware, supporting G-code, SVG, and image files for custom plotting.

TinyUPnPofekp/TinyUPnP

A minimal UPnP IGD library for ESP8266/ESP32 to automate port forwarding on routers.

DoorsignEPDjamct/DoorsignEPD

ESP32-based digital door signs using e-paper displays that load images from a web server with energy-saving deep sleep.

StickWatcheggfly/StickWatch

A DIY smart watch built on the M5Stick ESP32 development board.

Beispiel_AskSinPPjp112sdl/Beispiel_AskSinPP

Example sketches for building DIY HomeMatic-compatible 1-channel remote controls using Arduino and the AskSinPP library.

UTFT-ESPgnulabis/UTFT-ESP

Adds ESP8266 and ESP32 support to the UTFT library with hardware SPI for serial interface displays.

NFC Scannerklaasnicolaas/ha_nfc_scanner

A DIY NFC scanner that sends tag detection events via MQTT to Home Assistant for physical automation triggers.

Game Boy Printer Paper Simulationmofosyne/GameboyPrinterPaperSimulation

Simulates Game Boy Printer paper output using Arduino and GNU Octave/Matlab, with realistic thermal print effects and support for 110 games.

RFM69-MQTT-clientcomputourist/RFM69-MQTT-client

Arduino-based wireless sensor network using RFM69 radios with an MQTT gateway for IoT home automation.

WiFi GBP EmulatorHerrZatacke/wifi-gbp-emulator

An ESP8266-based GameBoy printer emulator that receives and serves printed images over WiFi.