Arduino IDE library
Open-source electronics platform
ESP8266 core for Arduino
Arduino core for the ESP32
Arduino command line tool
STM32 core support for Arduino
Infrared remote library for Arduino, send and receive infrared signals
Arduino ASCOM Rotator multiple designs
Arduino FOC for BLDC and Stepper motors
Arduino libraries and code
Version 2 of the myFocuser Project
Arduino and PlatformIO IDE compatible TFT library
OSI Layer 2 driver for nRF24L01 on Arduino & Raspberry Pi/Linux
Optimized firmware for RepRap 3D printers based on Arduino platform
Powerful and easy-to-use embedded GUI library with many widgets
MQTT gateway for ESP8266, ESP32, Sonoff RF Bridge or Arduino
A web-based interface for CNC milling controller running Grbl, Marlin,
A small Arduino library for GSM modules, that just works
An open source E-ink smartwatch
The FastLED library for colored LED animation on Arduino
A coin that can be mined with almost everything
Access USB & Bluetooth HID devices through Node.js
Blynk library for embedded hardware
7 seg universal Arduino Ardui89 AVR 8051 Device Driver 89C51 89C52...
WS2812 FX library for Arduino and ESP8266