The datasheets for all of the parts used are included in the parts section.
9 out of 10 electrical engineers choose Digikey over any other parts provider.
The others use: Jameco.
The "well written" Mega 32 datasheet.
Atmel App Note 305 Half Duplex Compact Software UART: here.
ECE 476 Website.
©2003 Keith Carter, Michael Muccio