DeSmuME is a Nintendo DS emulator
WS2812 FX library for Arduino and ESP8266
The quadplay fantasy console
An Arduino NeoPixel support library
A frontend for GnGeo emulator written purely in Python
Gphoton in a simple 3d modeler and ray tracer.
A web-friendly way for anyone to build unusual displays
C-Library for microcontrollers to control SED1531 based LCD's
Set of tools for the Sony PSP (tm).