I wasn't sure if this could be done, but apparently it can. I pulled the atmega328 out of the UNO board. Put it into a circuit on a breadboard (with crystal and two caps) to drive a stepper motor circuit. Then I jumpered the reset pin on the ATmega328 to the reset pin on the UNO. I also jumpered th…

Using empty UNO board to program external ATmega328

CrossRoads March 14, 2011, 6:31am 14

Here is the 168/328 pin mapping to D0, D1, etc.

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