Came across this contest winner on the Parallax website
http://www.parallax.com/DAQPacAutomotiv ... fault.aspxExcellent documentation including schematics and board layout here:
http://www.parallax.com/portals/0/downl ... Report.pdfAmazing what can be done with an $8.00 chip + peripherals
This one is even more insane (R/C autopilot)
http://www.parallax.com/tabid/726/Default.aspxCouple of cool videos (two R/C planes on same holding pattern run into each other on the first go-around...talk about accuracy!)
http://www.vimeo.com/2599290http://www.vimeo.com/2477624