Aug 26, 2012 #21 E ernestclydeachua Junior Member level 1 Joined Aug 5, 2012 Messages 15 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,380 pull up resistor do i need it? - - - Updated - - - well the gnd from the bjt was from another supply should it be connected to-5v or -6v?
pull up resistor do i need it? - - - Updated - - - well the gnd from the bjt was from another supply should it be connected to-5v or -6v?
Aug 26, 2012 #22 zsolt1 Full Member level 6 Joined Aug 11, 2012 Messages 367 Helped 50 Reputation 100 Reaction score 49 Trophy points 1,308 Location Cluj-Napoca, Romania Activity points 3,880 hi , look at the PIC's datasheet, at io pins section. Most of pins have internal pull ups