The Pi is plugged into a wall wart and the gert board is connected. I'm having trouble getting the ATMega chip to configure so I can use it and so I started checking some voltages on the board. That's when I found that J7 jumper which is supposed to be 3 volts is more like 3.96 volts? Is this OK?
That's the same voltage I'm finding on the ATMega chip too, so it seems to be under voltage.
The 5V hole on J24 has 4.65 volts on it. Seems like something is not quite right, but the PI is delivering 3.3 volts on Pin 1 and 4.65 volts on Pin 2
Is this normal?
Gertboard manual: http://www.mainelectronics.com/pdf/GERTBOARD_USER_MANUAL.pdf