user101905

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• Puck Advertising Private Characteristic and r/w

  @user101905 started

  • 4 comments
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  @Gordon replied
• Puck Advertising Private Characteristic and r/w

  in Puck.js, Pixl.js and MDBT42 • 5 years, 5 months

  

  Update:

  Im done with second characteristic and it works. But with notify it stocks.

  Here is the Code:

  NRF.setServices({
    "b0d0cdff-56fa-4bee-b611-874c82f0c313": {
     "9ed52c1b-73e4-47a9-b335-8e12cfa22fdc": {
        value : 0,
        writable : false,
        notify:true
      }
    }
  }, { uart : false });
  

  And the update code:

  NRF.updateServices({
    "b0d0cdff-56fa-4bee-b611-874c82f0c313" : {
      "9ed52c1b-73e4-47a9-b335-8e12cfa22fdc" : {
        value : 1,
        notify: true
      }
    }
  });
  

  The state switch and I can set Notify into the BLE App but no notification received.

• Puck Advertising Private Characteristic and r/w

  in Puck.js, Pixl.js and MDBT42 • 5 years, 5 months

  

  Hi,

  im totally new with Puck.js and Javascript at all but I'm trying to advertise a own private Characteristic with 2 Services.

  One service to controll the LEDs from the Puck from a external device and the other service for button state from Puck.

  First Service is writable from external device, the second one is just readable but with notifications.

  
  var timeout;
  function flag() {
    if (timeout) clearTimeout();
    LED1.set();
    timeout = setTimeout(function() {
      timeout = undefined;
      LED2.set();
    },2000);
  }
  
  //setWatch(flag, BTN, {repeat:true});
  
  // New code to define services
  NRF.setServices({
    "3e440001-f5bb-357d-719d-179272e4d4d9": {
      "3e440002-f5bb-357d-719d-179272e4d4d9": {
        value : [0],
        maxLen : 1,
        writable : true,
        onWrite : function(evt) {
          // When the characteristic is written, raise flag
          flag();
        }
      }
    }
  }, { uart : false });
  // Change the name that's advertised
  NRF.setAdvertising({}, {name:"BTN"});
  console.log("CONTROL BUTTON");
  

  That code works, if I'm writing into the service the LED1 rises. But i want to check what value is transmitted. But I cant find any documentation about NRF.setServices so I dont know how to read out the value.

  How do I make the second service with button state?

  A bit off topic question: As I saw the Puck only can connect with one device at once, thats ok but later I want that the code is execute during boot, is it still possible to access from Espruino IDE then?

  EDIT: Okay, I found that code:
  digitalWrite([LED3,LED2,LED1], evt.data[0]); which reads the value and works fine. But how to do the second task?

  Also: I need to restart iPhone (use BLE Scanner) after changing the Services. Otherwise it will not displayed. Very irritating. Is there a workaround?