ESP8266 Weather Station library supporting OpenWeatherMap
WS2812 FX library for Arduino and ESP8266
A shield for the Arduino Mega that can back up video game cartridges
DIY split-flap display
DIY project to build a cover, flat panel or combo flip-flat panel
MySensors library and examples
EtherCard is an IPv4 driver for the ENC28J60 chip
Sample code for Ocean Optics OmniDriver spectrometer device driver
Managing your Arduino BOARDS.TXT and PROGRAMMERS.TXT files
Leap Motion Joystick Emulation Code Sample
Battery charge indicator
Arduino open source PID motor control