Arduino libraries and code
Arduino FOC for BLDC and Stepper motors
Arduino library to play MOD, WAV, FLAC, MIDI, RTTTL, MP3
OSI Layer 2 driver for nRF24L01 on Arduino & Raspberry Pi/Linux
The FastLED library for colored LED animation on Arduino
Arduino and PlatformIO IDE compatible TFT library
A small Arduino library for GSM modules, that just works
JSON library for Arduino and embedded C++. Simple and efficient
Cooperative multitasking for Arduino, ESPx, STM32, nRF and more
WS2812 FX library for Arduino and ESP8266
An Arduino NeoPixel support library
Blynk library for embedded hardware
An open source E-ink smartwatch
Powerful and easy-to-use embedded GUI library with many widgets
MIDI libraries for Qt/C++
Cross-platform C++ library for use as a default application framework.
Infrared remote library for ESP8266/ESP32
ESP8266 core for Arduino
Hardware-optimized Arduino library
MIDI for Arduino
MySensors library and examples
LEDseq is Arduino library for advanced state indication with LED(s).