Jan71099

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• Set PlayBulb Candle Color

  @Jan71099 started

  • 2 comments
  • 1,870 views

  @Gordon replied
• Set PlayBulb Candle Color

  in Puck.js, Pixl.js and MDBT42 • 8 years

  

  The idea for my first Puck.js project is to use the puck a wall switch to control three BLE lamps (https://www.amazon.de/dp/B00PB4VXDS) i have. Based on some other code (https://codelabs.developers.google.com/codelabs/candle-bluetooth/index.html) this should be a simple task. So far i can connect, read the current color and set the name of the light. But setting the color doesn't work.

  NRF.connect("bb:df:4b:17:ac:e6").then(function(gat) {
    console.log("Gat: " + gat);
  
    gat.getPrimaryService("0xFF02").then(function(service) {
      console.log("Service: " + service);
  
      service.getCharacteristic("0xFFFC").then(function(characteristic) {
        console.log(characteristic);
  
        //characteristic.readValue().then(data => {
        //  console.log(typeof data);
        //  console.log(data);
        //  console.log(JSON.stringify(data));
        //});
  
        characteristic.writeValue(new Uint8Array([0x00, 255, 0, 0])).then(function() {
          console.log("Hit!!!");
        }).catch(function() {
          console.log("4");
        });
  
      }).catch(function() {
        console.log("3");
      });
  
    }).catch(function() {
      console.log("2");
    });
  
  }).catch(function() {
    console.log("1");
  });
  

  No catch block is called but the color of the light does not change. Im not really sure if new Uint8Array([0x00, 255, 0, 0]) is the write type here but 00FF0000 or \x00\xFF\x00\x00 does not work either. When i read the characteristic i get:

  string
  ÿ
  "\x00\x18\x98\xFF"
  

  I am thankful for any help or ideas.