AVR RFID
2009-07-07 16:25:45.20966+02 by Dan Lyke 0 comments
MarkV had a link to scanwidget: Using an AVR as an RFID tag. Neat hack that takes advantage of the clamping diodes on the I/O pins on the ATtiny85 to provide both power and a 125Khz clock via the coil.