Clown_of_God:
I dont get the purpose of the two Tinkerkit header pins, which connect to A2 +A3, on the Arduino Motor Shield.Both analog pins are always outputting 5V, rather than measuring the voltage. I want to configure them as input analog pins rather than output pins, but I am unsuccessful in doing that. I'm using Arduino UNO + Arduino Motor Shield together. Help, please?
They should be configured as inputs - note that they have schottky protection diodes on them so they won't be floating (schottky's have significant leakage current - did you just measure their voltage with a very high-impedance meter?)