I have a DFRduino that i think i fried tonight... was testing with a 12v psu when i realized the chip was REALLY hot- touched it and actually burnt my finger a bit.
quickly unplugged- and (like i should have done before) tested this power brick... it was throwing 17.5 volts.
everything seemed okay for a bit... but then it stated functioning strangely- loosing connection to the pc- and eventually not responding at all. I bought a new UNO r3 for the mean time- but is it possible that i could buy one of these a atmega328 from amazon and plug that into this board?
The current chips is one of these: http://www.amazon.com/Unknown-ATMEGA168-20PU/dp/B00BVZH8IK/ref=sr_1_5?ie=UTF8&qid=1365556875&sr=8-5&keywords=ATMega168-20