2 Replies Latest reply on Feb 14, 2014 1:48 AM by Sebestyen

    Problems using digital I/O 0 and 1 as inputs


      I tried to us the digital I/O pins 0 and 1 as input for two push-buttons, but  I experienced very curious behavior (sometimes work).

      The same hardware setup and program works well for digital I/O pin 2.

      I suppose there is a problem caused by the fact that these pins are multiplexed with the serial channel (signals Tx, RX).

      Can anyone explain the problem and give a solution?

      I suppose there is a way to control the multiplexer responsible for these pins.