Rabbit H1 USB controller
by RabbitEngineering, published
The Rabbit H1 is a replacement for a computer mouse based on the human interface concept of aircraft throttles. It requires very little hand motion, as the fingers and thumb do all the work - your hand lays motionless on the device.
Move the cursor with the thumb joystick, the index finger controls left click and "mousewheel" actions, and the middle and ring fingers to middle and right click.
The electronics are based on the Teensy 2.0 dev board (http://www.pjrc.com/teensy) and will work on PC or Mac. Source file for the firmware is included here (h1_fw.ino).
Details on the build are here: http://davenunez.wordpress.com/2014/07/03/building-the-rabbit-h1-controller/