AVR-Chat

David VanHorn wrote:
> Although the docs lead me to believe this will work, the hardware in hand is trying to convince me otherwise. 
> 
> Does anyone here know for sure, if the AVRISP will work in a 3V system?

As long as the internal micro can run at 3.3V, it should. RS232 levels are
+/-3V min.

http://www.serasidis.gr/circuits/avr_isp/avr_isp.htm
http://www.lammertbies.nl/comm/info/RS-232_specs.html
http://www.rs485.com/rs485spec.html