I/O pin enable

Discussion in 'Presence Sensor' started by Emre SARI, Mar 9, 2018.

  1. Emre SARI

    Emre SARI New Member

    We are working to use X4M300 using I/O pins. We are supplying VDD/GND (pins 1&2) and expecting to get presence info at pin 11 (IO1).
    IO1 is supposed to be 0 during initialization as well as non-presence and 1 in case of presence. But when we test, we always get 1 at IO1. I think this is because I/O pin control is disabled by default. How can we enable I/O pin control? (USB is disconnected).
    Should we use Atmel Studio? If so how?
    Many thanks
  2. Charlie Shao

    Charlie Shao Moderator Staff Member

    You can enable IO pin output by setting IO-pin control to Default option on XeThru Explorer, this setting will be remembered next you repower the sensor. Also, I want to remind you that, according to X4M300 datasheet:
    Low: Presence state
    High: No Presence, Initializing and Error states
    Emre SARI likes this.
  3. Emre SARI

    Emre SARI New Member

    Thanks Charlie,