The GPIO pins on my pi do not work. Pin 1 gives me 1.7v instaed of 3.3v. Pin 2 gives me the correct value. Some GPIO pins give me 5v no matter what state they are in ( high or low ) and the other GPIO pins give me 1.7v no matter what state they are in. Also, when used as inputs, the pins sometimes think that they are high with nothing connected to them.