MMM-OralB / Bluetooth equipped toothbrush integration

[lavolp3]

@lavolp3 Also mentioning in the Readme that npm install is necessary would be helpful

[lavolp3]

OK I have a first error message

[15:04:46.174] [ERROR]  15:04:46 <error> (node:1454) UnhandledPromiseRejectionWarning: Error: No such interface found
    at /home/pi/MagicMirror/modules/MMM-BluetoothDevices/node_modules/dbus-native/lib/introspect.js:31:23
    at Parser.<anonymous> (/home/pi/MagicMirror/modules/MMM-BluetoothDevices/node_modules/xml2js/lib/parser.js:304:18)
    at Parser.emit (events.js:182:13)
    at SAXParser.onclosetag (/home/pi/MagicMirror/modules/MMM-BluetoothDevices/node_modules/xml2js/lib/parser.js:262:26)
    at emit (/home/pi/MagicMirror/modules/MMM-BluetoothDevices/node_modules/sax/lib/sax.js:624:35)
    at emitNode (/home/pi/MagicMirror/modules/MMM-BluetoothDevices/node_modules/sax/lib/sax.js:629:5)
    at closeTag (/home/pi/MagicMirror/modules/MMM-BluetoothDevices/node_modules/sax/lib/sax.js:889:7)
    at SAXParser.write (/home/pi/MagicMirror/modules/MMM-BluetoothDevices/node_modules/sax/lib/sax.js:1436:13)
    at Parser.exports.Parser.Parser.parseString (/home/pi/MagicMirror/modules/MMM-BluetoothDevices/node_modules/xml2js/lib/parser.js:323:31)
    at Parser.parseString (/home/pi/MagicMirror/modules/MMM-BluetoothDevices/node_modules/xml2js/lib/parser.js:5:59) (/home/pi/MagicMirror/internal/process/warning.js:18 writeOut)

no Toothbrush activated yet. Only started the mirror with npm start dev.
Running on a RasPi 3b w/ on-board bluetooth

[timodejong95]

Ooh good one, I have some time tonight, will update the docs.

Hmm you running on raspberry pi do you got bluetooth enabled? Can you find the toothbrush if you use the GUI bluetooth?

If you got the time could we skype or call, it’s faster to tackle issueus, PM me about that.

[lavolp3]

@timodejong95 that’s rather difficult for me juggling with family, (home) office and several other things I have to say. Will think about this and let you know.

I have worked successfully with bluetoothctl and noble (npm).
Both were able to connect to the brush.
With bluetoothctl I got a constant stream of the manufacturer data that contains some info. (see above)
I used that straight from the console.

[lavolp3]

@timodejong95 OK I have identified the source of the error.
It originated from the connectDevice function on Dongle.js
I had a wrong mac address for the brush which leads to an unresolved promise.
Good luck finding the promise :smiling_face_with_open_mouth_smiling_eyes:
(I love/hate promises…)

Correcting the mac address I get new unresolved rejection errors.

[11:54:35.940] [LOG]    11:54:35 <log> Retrying Dirks OralB 2/3 (/home/pi/MagicMirror/modules/MMM-BluetoothDevices/src/Device.js:42 Promise)
[11:54:35.964] [ERROR]  11:54:35 <error> (node:23373) UnhandledPromiseRejectionWarning: Software caused connection abort (/home/pi/MagicMirror/internal/process/warning.js:18 writeOut)
[11:54:35.970] [ERROR]  11:54:35 <error> (node:23373) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1) (/home/pi/MagicMirror/internal/process/warning.js:18 writeOut)
[11:54:35.975] [ERROR]  11:54:35 <error> (node:23373) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code. (/home/pi/MagicMirror/internal/process/warning.js:18 writeOut)
[11:55:16.260] [LOG]    11:55:16 <log> Retrying Dirks OralB 3/3 (/home/pi/MagicMirror/modules/MMM-BluetoothDevices/src/Device.js:42 Promise)
[11:55:16.275] [ERROR]  11:55:16 <error> (node:23373) UnhandledPromiseRejectionWarning: Software caused connection abort (/home/pi/MagicMirror/internal/process/warning.js:18 writeOut)
[11:55:16.279] [ERROR]  11:55:16 <error> (node:23373) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 2) (/home/pi/MagicMirror/internal/process/warning.js:18 writeOut)
[11:55:56.582] [ERROR]  11:55:56 <error> (node:23373) UnhandledPromiseRejectionWarning: Error: Couldn't connect to Dirks OralB after 4 tries.
    at Promise (/home/pi/MagicMirror/modules/MMM-BluetoothDevices/src/Device.js:46:16)
    at new Promise (<anonymous>)
    at tryConnect (/home/pi/MagicMirror/modules/MMM-BluetoothDevices/src/Device.js:40:14)
    at Object.iFace.Connect (/home/pi/MagicMirror/modules/MMM-BluetoothDevices/src/Device.js:56:13)
    at EventEmitter.<anonymous> (/home/pi/MagicMirror/modules/MMM-BluetoothDevices/node_modules/dbus-native/lib/bus.js:140:19)
    at EventEmitter.emit (events.js:187:15)
    at /home/pi/MagicMirror/modules/MMM-BluetoothDevices/node_modules/dbus-native/index.js:106:14
    at Socket.<anonymous> (/home/pi/MagicMirror/modules/MMM-BluetoothDevices/node_modules/dbus-native/lib/message.js:55:9)
    at Socket.emit (events.js:182:13)
    at emitReadable_ (_stream_readable.js:540:12) (/home/pi/MagicMirror/internal/process/warning.js:18 writeOut)
[11:55:56.588] [ERROR]  11:55:56 <error> (node:23373) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 3) (/home/pi/MagicMirror/internal/process/warning.js:18 writeOut)
[11:55:56.593] [ERROR]  11:55:56 <error> (node:23373) UnhandledPromiseRejectionWarning: Software caused connection abort (/home/pi/MagicMirror/internal/process/warning.js:18 writeOut)
[11:55:56.599] [ERROR]  11:55:56 <error> (node:23373) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 4) (/home/pi/MagicMirror/internal/process/warning.js:18 writeOut)

So… Software caused connection abort. Don’t know what that means unfortunately. Guess I need to learn a bit more about the connection process. But I get the feeling that this module is a bit too complex for just using with my toothbrush.
Let me know if you know my problem.

[timodejong95]

@lavolp3 Check, I will update the docs, with more info soon.

Yeah promises could be really nice if implemented correctly, now debugging is a pain because the error logs are not as useful. I will make this better in the coming week.

When you hit the web interfase the node_helper is triggered, do you then have your brush on? Because when you start up the first time, alle the devices should be on and ready to connect.

[timodejong95]

I have tweaked the code a bit towards better exception handling, this might be helpful for you

[djerik]

Works great with my Oral B 9000!

Notes:

• I had to change the git clone to https instead of git clone git@github.com:timodejong95/MMM-BluetoothDevices.git
• Copying the file MMM.conf requires administrative rights
• I used bluetoothctl to find the MAC of the toothbrush

[timodejong95]

@djerik Nice! Good to hear, and thanks for the feedback I will update the readme where needed!

[lavolp3]

@timodejong95 Hi Timo, it works for me now as well. Very good!
So now let’s go for the holy grail! The battery status.
It is there and I managed to get it out using noble. Don’t ask me how. Lol.
Find the code below where I meddled with Advertisements and Characteristics:

noble.on('discover', function(peripheral) {
  var ad = peripheral.advertisement || "";
  if (ad.localName == "Oral-B Toothbrush") {
    //console.log('Found device with local name: ' + ad.localName);
    //console.log('advertising the following service uuid\'s: ' + ad.serviceUuids);
    //console.log("ID: "+peripheral.id);
    //console.log("Advertisement: "+ad);
    if (ad.manufacturerData) {
        console.log('Found OralB Toothbrush with ID: ' + peripheral.id);
        console.log('ManufacturerData: '+ad.manufacturerData.toString('hex'));
        //noble.stopScanning();
        peripheral.connect(function(error) {
          if (error) {
            console.log("Error connecting to peripheral: " +error);
          } else {
            console.log('Connected to peripheral: ' + peripheral.uuid);
            peripheral.discoverServices([], function(error, services) {
              console.log("Discovering services...");
              if (error) {
                  console.log("ERROR while discovering peripherals: " + error);
              } else {
                  console.log('discovered the following services:');
                  for (var i in services) {
                      //console.log('  ' + i + ' uuid: ' + services[i].uuid);
                  }
                  discoverChars(services[3]);
                  /*setTimeout(() => {
                    noble.startScanning([], true);
                  }, 1000);*/

              }
              //peripheral.disconnect();
            });
          }
        });

        peripheral.on('disconnect', function() {
          process.exit(0);
          console.log("Peripheral disconnected. Scanning again!");
          noble.startScanning();
        });
    }
  }
});


function discoverChars(service) {
  service.discoverCharacteristics(null, function(error, characteristics) {
    //console.log("Characteristics: "+characteristics);
    for (let i in characteristics) {
      var charUUID = characteristics[i].uuid;
      console.log('  ' + i + ' uuid: ' + charUUID);
      if (characteristics[i].uuid == "a0f0ff0550474d5382084f72616c2d42") {
        let j = i;
        characteristics[j].on('data', function(data, isNotification) {
            console.log("Data: "+data);
            var valueInt = data.readInt8(0);
            console.log("Battery: "+valueInt+"%");
        });
        /*characteristics[j].read(function(error, data) {
            if (data) {
              var valueInt = data.readInt8(0);
              console.log("Battery: "+valueInt+"%");
            }
        });*/
        characteristics[j].subscribe(function(error) {
            if (error !== null) { console.log("error", error); }
        });

      }
    }
  });
}

I guess you can find the same using bluez?

If I find the time, I’ll also try out which way works better (for me).
Noble or your blues dbus way. I had several issues using noble but it had its charme (like the battery status :-) and only sending data when I activate or deactivate the brush)