No idea. Did you have the USB and 12V plugged in at the same time? Maybe that was the problem. If not, then I'd say that the odds are good that you'll just toast the next one.Mastermime wrote:Would it be safe to use that schematic if I bought another Arduino and made the same connections?
If it were me, I'd add another supply for the arduino, lcd, and PS2. Arduinos run best on 7-9V at the barrel jack. We provide 9V supplies with our kits. Or add your own voltage converter to down-convert the 12V