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    Writing to a BLE Characteristic

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    • S Offline
      Sean Militello
      last edited by

      Hi there,

      Unsure if this is the correct place to post this question; I've looked around and can't find anywhere else to put it. If I'm wrong to post this here, please feel free to direct me.

      I've successfully implemented a BLE stack with 5 characteristics in CircuitPython.

      • Four are set to "READ": I'm transmitting sensor information via these characteristics, and record these upon the reception of the first advertisement by the CENTRAL.

      • The Fifth is "READ|WRITE": I want the CENTRAL to write an integer to this value corresponding to the index of a record the PERIPHERAL has ready to transmit. (e.g. PERIPHERAL has 3 records to transmit, CENTRAL requests each in-turn by writing values 1-3 to this Fifth characteristic).

      This works fine in CPy. However, I'm not sure how to write to the specific WRITABLE characteristic using MPy/Pycom Python here.

      Note: I do have the UUID of the characteristic I'm trying to write to.

      Any help on how this is meant to be done in MPy/Pycom Python?

      Best wishes and thanks,

      S.

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      • S Offline
        Sean Militello
        last edited by

        Figured this out. When connected, I can query all characteristics and create references to them - easy.

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