Youen

KSPTrajectories. A Kerbal Space Program mod to display trajectory predictions, accounting for atmospheric drag, lift, etc.

OneWireArduinoSlave. An arduino library to communicate using the Dallas one-wire protocol, where the Arduino takes the role of a slave. Entirely implemented using interrupts, you can perform other tasks while communication is handled in background.

GRLD. Graphical Remote Lua Debugger, a debugger for the lua programming language