Search results for:

Ok it is all working now with the newest firmware. Thanks a million Gordon I really appreciate it.

ps. That watch is awesome!

Thanks for looking into this Gordon! How are you testing that this is working? I am using the NRFConnect app as a source of truth. I uploaded your code to my puck and tried to get the secure characteristic from that app and once I entered the passkey it just disconnects(same as before). I am also trying on an objective-c core bluetooth application I wrote to test connecting to the app and I get an "unknown error" after I type in the passkey(also, same as before). I am wondering what you are using to show that is does work as intended? I will try again with the new firmware.

Ping

I don't think it was ever working. When I said it was working it is because the passkey prompt popped up. I was never able to connect to it. I thought I was reproducing a reported Web Bluetooth bug in Chrome. However, when I dug further I found the issue was in the call to Core Bluetooth. I have now made a standalone Objective C OSX application that uses core bluetooth to connect and I am still getting the error. I then tried it on the NRF Connect app and it did not work there. I also tried through Chrome's web bluetooth on Windows and it did not work there either. This is leading me to believe the issue might be in the Puck.

I did restart my Mac and try again and I am still not able to connect to the protected characteristic.

I would like to open this back up. I am not sure this is working properly. It is now prompting me for the passkey on mac os and android(using the nrf connect app). In Mac when I enter the key it gives me an "unkown error" and on the NRF connect app it acctually disconnects me from the puck when I enter the passkey.

My current code is :

NRF.setSecurity({passkey:"123456", mitm:1, display:1});
NRF.setServices({
  0xabcd : {
    0xAB40 : {
      value : "Hello",
      maxLen : 50,
      notify: true,
      readable: true,
      writable: true,
    },
    0xAB41 : {
      value : "Hello",
      maxLen : 50,
      notify: true,
      readable: true,
      writable: true,
      security: {
        read: {
          encrypted: true,
          passkey:"123456",
          mitm: true,
          lesc: true,
          signed: false
        },  write: {
          encrypted: true,
          passkey:"123456",
          mitm: true,
          lesc: true,
          signed: false
        }
      }
    }
  }
}, {advertise: [ 0xabcd ]});
var  on = false;
setWatch(function(e) {
  on = !on;
  LED1.write(on);
  var pressTime = e.time - e.lastTime;
  NRF.updateServices({
    0xabcd : {
      0xAB40 : {
        value : "time: " + e.time,
        notify: true
      },
      0xAB41 : {
        value : "lastTime: " + e.lastTime,
        maxLen : 50,
        notify: true
      },
    }
  });
}, BTN, { repeat:true, edge:"falling", debounce: 50 });

everything works fine on characteristic 0xAB40 but I cannot get the secure 0xAB41 characteristic to work. Please advice.

That did the trick. Much appreciated!

Now http://www.espruino.com/binaries/travis/­master/ does not even have a file for puck js.

The espruino_2v04_puckjs.zip file is not working for me. I even went and installed 2v03 to make sure it was not updating and that I was doing it properly. 2v03 worked just fine. That master branch version of 2v04 does not. The NRF Connect app says "Starting DFU" then immediately says "disconnecting..."

I also wanted to say that I am using web-bluetooth to connect to the characteristic. Here is my code for that:

connectClick(event) {
        console.log('clicked', event);
        navigator.bluetooth.requestDevice({
            filters: [{
                services: [0xabcd],
              }]
        })
        .then(device => {
            console.log("requested", device);
            return device.gatt.connect();
        })
        .then(server => {
            console.log('got server', server);
            return server.getPrimaryService(0xabcd);
        })
        .then(service => {
            console.log('got service', service);

            service.getCharacteristic(0xAB40).then(characteristic => {
                this.startListeningForTime(characteristic);
            });
            service.getCharacteristic(0xAB41).then(characteristic => {
                this.startListeningForTime(characteristic);
            }).catch(error => {
                console.log('error', error);
            })
        })
    }

    handleCharacteristicValueChanged(event) {
        var enc = new TextDecoder("utf-8");
        var value = event.target.value;
        console.log('Received ' + enc.decode(value))
        // TODO: Parse Heart Rate Measurement value.
        // See https://github.com/WebBluetoothCG/demos/blob/gh-pages/heart-rate-sensor/heartRateSensor.js
    }

    startListeningForTime(characteristic) {
        characteristic.startNotifications()
        .then(char => {
            console.log('notification started', char)
            // Writing 1 is the signal to reset energy expended.
            char.addEventListener('characteristicvaluechanged', this.handleCharacteristicValueChanged.bind(this));
        })
    }

Just wanted to make sure that I should not be able to access that without entering a passkey if it is working.

I am trying to get some sort of proof that there is any security things happening at all. Most notably is that there is no prompt for a pin at any point.

Here is all the code I am uploading to my puck.js although I don't think anything but the first line(obviously copy pasted from the docs) is relevant.

NRF.setSecurity({passkey:"123456", mitm:1, display:1});
NRF.setServices({
  0xabcd : {
    0xAB40 : {
      value : "Hello",
      maxLen : 50,
      notify: true
    },
    0xAB41 : {
      value : "Hello",
      maxLen : 50,
      notify: true,
      security: {
        read: {
          encrypted: true,
          mitm: true,
          lesc: true,
          signed: false
        }
      }
    }
  }
}, {advertise: [ 0xabcd ]});
var  on = false;
setWatch(function(e) {
  on = !on;
  LED1.write(on);
  var pressTime = e.time - e.lastTime;
  NRF.updateServices({
    0xBC10 : {
      0xAB40 : {
        value : "time: " + e.time,
        notify: true
      },
      0xAB41 : {
        value : "lastTime: " + e.lastTime,
        maxLen : 50,
        notify: true
      },
    }
  });
}, BTN, { repeat:true, edge:"falling", debounce: 50 });

Puck js is updated to 2v04.

Enjoys building cool things. I also should note that I work on Web Bluetooth in Chrome.