Pin 25 on the chip is analogue input 2.
Pin 16 is what it is called when it is used as a digital input.
Could it be that this input is fryed, have you tried another. There is no need to enable the pull up resistors for this example.
Pin 25 on the chip is analogue input 2.
Pin 16 is what it is called when it is used as a digital input.
Could it be that this input is fryed, have you tried another. There is no need to enable the pull up resistors for this example.