This observation is about a machine (pic) learning a sequence from another machine (pic), without any human intervention and with no more feedback than a percentage correct.
http://members.home.nl/b.vandam/lonely/pagina16.html
This is a guide to help those who are familiar with electronics and writing PIC microcontroller software to program and use them at home.
http://oak.cats.ohiou.edu/~db283101/pichowto.html
http://www.efplus.com/images/com/multimania/www/http/silicium31/Electronique/PIC/schematics.htm
based on SP0256
http://www.acm.uiuc.edu/sigarch/projects/welcome/
http://sami.ticalc.org/e_pxpand.htm
mechanically scanned display stuff and software generated video using PIC, includes video games like Pong and Tetris
http://www.rickard.gunee.com/projects/
http://home.iprimus.com.au/vk3jaj/p18f252/index.html
based on PIC16F84
http://web.hazmat.com/~mjb/projects/rswg/