USING Arduino Micro (ATmega32U4) as ISP

Using Arduino Microcontrollers
13

I seem to recall someone doing that, not so long back. a 32.768 KHz crystal or some such thing. Or maybe that was as an input to a timer. One or the other.

One post I found:

http://interface.khm.de/index.php/lab/experiments/sleep_watchdog_battery/

Also: http://arduino.cc/forum/index.php/topic,957.0.html