Homepage › Forums › RetroPie Project › Everything else related to the RetroPie Project › HELP NEEDED. First person to solve my problem will receive an arduino uno. › Reply To: HELP NEEDED. First person to solve my problem will receive an arduino uno.
03/28/2014 at 03:38
#5788
Participant
so i poked around with my oscilloscope on the data lines of both controllers and it seems like player1’s voltages are higher than player2’s i can see when i press buttons on both 1 and 2 … also with a multimeter i checked the data lines of both. player ones normal voltage on data is == 3.25 . player twos normal voltage is == 1.71 . i am confused??? im powering both controllers from gpio pin1 3v. any ideas? im thinking maybe ill try 5v but i dont want to burn the pi.