OpenSprinkler Forums Hardware Questions OpenSprinkler Pi (OSPi) Interrupt detection not working

  • This topic has 3 replies, 2 voices, and was last updated 6 years ago by Ray.
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  • #44096

    Luca
    Participant

    Hello everyone,
    I’m trying to use the free GPIO pins on the OSPi board to detect if a door is open or closed, via a hardware switch connected directly, and using node-red on the Raspberry Pi to send a notification to my phone. The software implementation works flawlessly if I use only the Raspberry Pi board (even with OpenSprinkler firmmware running), but if I connect the OSPi board then the interrupt detection doesn’t work anymore. If I restart the flow in node-red the state of the pin is read correctly, but after that the software doesn’t receive the updates anymore. I tried this also with a custom script in python, and also with different Rasperry Pi boards, but I always have the same problem. I’m thinking that this problem can be related to the OSPi board, but I really don’t understand the reason, because the free GPIO pins should be connected directly through the board.
    Any ideas about this problem?
    THanks!!
    Luca

    #44192

    Ray
    Keymaster

    Which GPIO pins are you using for interrupt?

    #44455

    Luca
    Participant

    Hi Ray,

    sorry for the late reply, I thought I vas subscribed to the thread updates but I was wrong.

    I’m using one of the free GPIO, one of the white ones in the attached image.
    Do you think this could be the problem?

    Thanks again

    Luca

    Attachments:
    #44480

    Ray
    Keymaster

    I can’t think of any particular reason — as long as it’s a pin unused by OSPi, it really shouldn’t matter because those pins are not connected to anything on OSPi. Just to make sure this is not a power-related issue: when testing, did you power the board with 24VAC or with a microUSB cable plugged into RPi?

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OpenSprinkler Forums Hardware Questions OpenSprinkler Pi (OSPi) Interrupt detection not working