Activity › Forums › Questions & Troubleshooting › Software & Firmware › Problem Maxi Automatin between Controllino_AI9 and Controllino_AI10 › Reply To: Problem Maxi Automatin between Controllino_AI9 and Controllino_AI10

  • Lukas

    Member
    September 30, 2021 at 9:09 am

    Hi Michael,

    please note that voltage divisor at screw terminals works as an internal pull-down resistor. So you shoud connect the button between the terminal and the supply voltage. Then it should work, but – you should not activate internal pull-ups in the microcontroller, and it will be inverted (HIGH when pushed, LOW when pulled).

    Best regards,

    Lukas

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