P.S. I tried replacing the atmega chip on the UNO with a new one but no change.
Quote from: jeremydial1981 on Feb 16, 2012, 06:19 amP.S. I tried replacing the atmega chip on the UNO with a new one but no change.I'm curious: What made you think that replacing the ATMega would fix the issue?It'd be like not being able to start your car, and replacing the engine expecting that to fix it...
The design is very poor.
Having just blown two unos, my advice is to be very very careful what you connect where. these things are fragile - I know the second time I put 12v by accident back through a chip - immediate failure. Probably the same thing with the first. The design is very poor.