Kris k
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BK

I had my arduinoboy working earlier today (finally!) but something's gone wrong and now the LEDs keep cycling the same way they do when you first power on the DMG.  (Mine is using the 5V power from the DMG). The full startup cycle happens then they blink and start over. I'm not sure what this means, exactly.  Which part of the circuit is broken?  I figured it might be the one relating to the pushbutton switch, but I've checked my work and can't figure it out. 

Anyone have any insight as to what might be causing this?

NeX
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either it could be the button being stuck, or somewhere else where the button is held on.

or it could be that the power source is too low, causing it to reset. when the arduino has done its startup with the lights it starts sending data and setting outputs etc, which could take just too much power and cause it to reset. is the DMG on batteries or wall power?