One input is dedicated for fast external trigger and other one could be used for application logic. User can control two GPIOs for external device control like for relay, panel lamp, solenoid valve, rejection system, etc.
One can easily extend more no. of IOs using external RS232 or Ethernet based IOs extenders.
Following code can be used in the application for setting GPIO outputs:
Following code can be used in the application for checking the status of GPIO input:
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