I just wanted to enhance my good-cheap hobbyking 6ch transmitter for use it with more than 1 plane at a time, and I created a new transmitter computer with all the stuff that the expensive ones got
Stellaris Launchpad DSO
A quick hack for using the TI´s Stellaris Launchpad as a DSO. Samples at 1Msps max, and had a single capture VB.Net interface
http://patolin.com/blog/2013/07/07/osciloscopio-con-stellaris-launchpad-actualizacion/
Stewart Platform
My college grade project. A 6DOF stewart platform with a fuzzy logic controller, and computer vision. You can see it in action in this post
http://patolin.com/blog/2012/07/20/controlador-para-servomotores-usb-con-entradas-y-salidas-digitales/