I´m having this error in Log when I try to connect:

Initialize Error:
{"error": "unsupported", "message" : "Operation unsupported"}

I´m using Motorola Moto X with Android version 6.0

I added in my config.xml:

 <plugin name="BluetoothLePlugin" value="com.randdusing.bluetoothle.BluetoothLePlugin" /> 

My AndroidManifest.xml I have Bluetooth Permissions:

<uses-sdk android:minSdkVersion="16" android:targetSdkVersion="22" />
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

I´m trying to connecto to HC-05 or stick n find (ibeacons) by bluetooth with phonegap/ionic/cordova project. Someone can help me with a working example?

Hi there,

It seems that using the scanTimeout parameter with startScan does stop the scan after the given time (I checked this using isScanning with angular's built in $timeout), but it seems that no callback is triggered when stopScan is called automatically after the timeout. Is this the expected behavior? Is there a way to trigger a callback without using the $timeout service (as this kind of defeats the purpose of the scanTimeout parameter, right?)?

Thanks in advance for the help and for the awesome angular wrapper of a great plugin!

I've implemented the code on the example app. Code provided below:

$ionicPlatform.ready().then(function () {
      $cordovaBluetoothLE.initialize({request:true}).then(null,
      function(obj) {
        //Handle errors
      },
      function(obj) {
        var params = {
          services:[],
          allowDuplicates: false
          //scanTimeout: 15000,
        };

        if (window.cordova) {
          params.scanMode = bluetoothle.SCAN_MODE_LOW_POWER;
          params.matchMode = bluetoothle.MATCH_MODE_STICKY;
          params.matchNum = bluetoothle.MATCH_NUM_ONE_ADVERTISEMENT;
          //params.callbackType = bluetoothle.CALLBACK_TYPE_FIRST_MATCH;
        }

        console.log("Start Scan : " + JSON.stringify(params));

        $cordovaBluetoothLE.startScan(params).then(function(obj) {
          console.log("Start Scan Auto Stop : " + JSON.stringify(obj));
        }, function(obj) {
          console.log("Start Scan Error : " + JSON.stringify(obj));
        }, function(obj) {
          console.log("Start Scan Success : " + JSON.stringify(obj));

          $scope.device = obj;
          addDevice(obj);
        });
      });
    });

But upon scanning, I'm only getting this result.

Start Scan Success : {"status":"scanStarted"}

Thanks!

Hi ! i can't get notification from my bluetooth device.
can you post an example ?
thanks.

Hi,
as graduation project, i'm developing an hybrid application for the monitoring of vital parameter, which requires Bluetooth Low Energy.
I'm using ng-cordova-bluetoothle plugin and all the methods that I have used so far are working.
Now I want to read the frame from the BLE card to plot charts, but I have a problem, the frame length is 100bytes and I found that the maximum that can be read is 22bytes. have you any idea how I can use the read() to read this frame? is that even possible ?
thank you,

Hey there,

For some reason I'm having trouble requiring the module with webpack. I think its because there's no main field in the package.json. I'm going to send a PR to add one with a version bump.

Hi I'm using an Bluetooth from Adrafuit(Bluefruit). I can write without problem from my Android phone but I can't read anything form bluefruit. I just got errors(Unable to read).

Adafruit bluefruit https://learn.adafruit.com/introducing-adafruit-ble-bluetooth-low-energy-friend/uart-service

I use the example code adapted to a simple application without modification.

I have noticed something very simple, it takes a moment to write and displays "Success" or "Errors". But to read almost immediately displays "Error"

This is my test project https://github.com/wifixcort/BlueTest

Thanks for help

I was trying to figure out how BLE works. Tried to go through your plugin have followed all the steps mentioned in document. Build for android using windows everything is working great till now.

• Initialize my device.
• Enable/Disable my device bluetooth.

But when i used to startScan it only detects my Mac laptop even if my all other devices are enabled. I wanna know

• How the app scan for all the bluetooth devices?
• What should i have to pass in params of startScan show that it detects all the devices?

Update changelog and version number for newest pull request

when I use scan function in response I received only mac address, but I need the uuid of device

Scan code

$scope.scan = function(){
    $cordovaBluetoothLE.initialize({request:true}).then(null, function(obj) {
      console.log("error " + JSON.stringify(obj));
    }, function(obj) {
      console.log("ok " + JSON.stringify(obj));
    });

    var params = {
      services:[],
      allowDuplicates: false,
      scanTimeout: 1000,
    };

    if (window.cordova) {
      params.scanMode = bluetoothle.SCAN_MODE_LOW_POWER;
      params.matchMode = bluetoothle.MATCH_MODE_STICKY;
      params.matchNum = bluetoothle.MATCH_NUM_ONE_ADVERTISEMENT;
      //params.callbackType = bluetoothle.CALLBACK_TYPE_FIRST_MATCH;
    }

    console.log("Start Scan : " + JSON.stringify(params));

    $cordovaBluetoothLE.startScan(params).then(function(obj) {
      console.log("Start Scan Auto Stop : " + JSON.stringify(obj));
    }, function(obj) {
      console.log("Start Scan Error : " + JSON.stringify(obj));
    }, function(obj) {
      console.log("Start Scan Success : " + JSON.stringify(obj));
      console.log($cordovaBluetoothLE.stringToBytes(obj.address));
    });

  }

console response

...
Start Scan Success : {"address":"CF:BC:E4:1B:B1:A8","name":"EST","rssi":-76,"advertisement":"AgEGGv9MAAIVuUB/MPX4Rm6v+SVVa1f+bQABAAKvAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=","status":"scanResult"}
...

I am using the plugin but my application, but it does not finds a bluetooth printer Qsprinter

Hi Randdusing,
Thanks for the great plugin and example app.
I am creating an ionic application using your plugin which will be able to scan ,connect,discover and read the characteristics of glucometer and oximeter which are present within the range. so i need to implement multiconnection with multiple services along with monitoring of the characteristics value through subscription and notification.Currently I am able to read only one device at a time.It would be great if you can provide some inputs or examples.

Hi.

I'm trying to build an app using this library. More specifically, I want to call a specific function within a specified interval time. So to do this I'm using the following code:

vm.startExperimentLoop = function() {
       vm.myCall = $interval( loop, 5000);        
};


vm.apiStop = function(){
	$interval.cancel(vm.myCall);
}

function loop(){
	getTemp();
}

function getTemp(){
	return bleReadgetTemp()
	.then (function(response){
		response = atob(response.value);
		debugWrite("Response@getTemp: " + response + "\n");
		if(response.status){
			// Do nothing
		} else {
			// Stop the loop :p
		}
		return response;
	})
	.catch( function(error){
		console.log("getTemp");
	})
}

function bleReadgetTemp(){
	var service_id = '12ab';
	var characteristic_id = '31cd';

	var params = {
	        address: $stateParams.address,
	        service: service_id,
	        characteristic: characteristic_id,
	};

	return $cordovaBluetoothLE.read(params);
} 

The bluetooth peripheral is running nodeJS with bleno library and on this specific read request returns an object like {"temp": 2455555555}. As long the value of temp attribute has 10 or less digits everything work as expected. If I put one more digit and make them 11 in total, the $interval function seems not to be work and sends read requests continuously to the peripheral.

Any idea why this could happen?

Need to rethink initialize since Disable will "complete" the promise.

Hi all, I am using this plugin for connecting embedded device. before that I want to check it with 2 mobiles. But it is not even finding my mobile device..

Hi I am trying to send a message to a BLE node using GATT connection. I am able to establish a connection but I am not able to send a message. This is the error I am facing,
Write Error :
{"error":"service","message":"Service not found","address":"C2:A7:51:2C:F2:37","name":"ble-Micro"}
My request looks like this,

$scope.write =function() {
            var params = {
                         address:"C2:A7:51:2C:F1:47", 
                         service:"713d0000-503e-4c75-ba94-3148f18d941e", 
                         characteristic: "713d0003-503e-4c75-ba94-3148f18d941e", 
                         value:"hello world", 
                         timeout: 3000
                       };
            console.log("Write : " + JSON.stringify(params));

            $cordovaBluetoothLE.write(params).then(function(obj) {
              console.log("Write Success : " + JSON.stringify(obj));
            }, function(obj) {
              console.log("Write Error : " + JSON.stringify(obj));
            });
 };

Any kind of help is appreciated.

I'm not sure how to interpret the minimum requirements:

Android 4.3 or higher, Android Cordova library 5.0.0 or higher, target Android API 23 or higher

How is it possible to build an app using API 23 for a phone running Android 4.3?
Isn't the API tied to the Android version, i.e. API 23 for 6.0? (or 22 for 5.1.1 in my case)
My reference is simply the Android SDK Manager which list the build tools categorised as Android 6.0 (API 23) etc.
This confuses me (mainly because I'm completely new to mobile development).

I've tried setting <preference name="android-targetSdkVersion" value="23"/> and
<preference name="android-minSdkVersion" value="23"/> in the config.xml file, which result in apk install errors when deploying to the device.

Is there any reason why the function read works only if executed inside the callback of function discover ?

Hi i am using this plugin and its working fine for initialize , but i start scan , no devices .

$rootScope.startScan = function() {
     var params = {
     services:[],
     allowDuplicates: false,
   //scanTimeout: 15000,
  };

if (window.cordova) {
  params.scanMode = bluetoothle.SCAN_MODE_LOW_POWER;
  params.matchMode = bluetoothle.MATCH_MODE_STICKY;
  params.matchNum = bluetoothle.MATCH_NUM_ONE_ADVERTISEMENT;
  //params.callbackType = bluetoothle.CALLBACK_TYPE_FIRST_MATCH;
}

Log.add("Start Scan : " + JSON.stringify(params));

$cordovaBluetoothLE.startScan(params).then(function(obj) {
  Log.add("Start Scan Auto Stop : " + JSON.stringify(obj));
}, function(obj) {
  Log.add("Start Scan Error : " + JSON.stringify(obj));
}, function(obj) {
  Log.add("Start Scan Success : " + JSON.stringify(obj));

  addDevice(obj);
});

};

Ionic app doesn't have "read" and "write" buttons.
Are these in development?

I'm running this example just fine, on the surface everything seems to work just fine. Init works, enable/disable works, scan starts and stops, getting connected devices works just fine.

My problem is that scan results are not returning to the callback. I can see through logcat that the scan is successfully finding the device I'm trying to connect to (TI SensorTag), but the app does not record any found devices.

Do you know what could be the problem?

I've not modified the code in any way.

Hello, I follow Example App steps and app start fine but when I use "Read All" example I get this log:

Initializing...
Finding device
Read All Error: "Scan stopped without finding any devices"

I run example in a "Moto E" (Android 4.4).
I have "Moto G (Android 4.4)" and "Nexus 4 (Android 5)" with bluetooth activated and visible.
If I use Android bluetooth search option it find 2 devices.
I use Android SDK 23 and I have location enabled and permission.

Is Location Enabled Success : {"isLocationEnabled":true}
as Permission Success : {"hasPermission":true}

Any help?

Updated

Sorry this mobile devices don't be BLE devices.
I use this plugin https://github.com/don/BluetoothSerial#discoverunpaired and it works.

Hi everyone!

I'm trying to respond to a 'writeRequested' state with the respond() method, but I see that it doesn't work as expected.

I need to reply to the device that made the writeRequest with a 'received' message.

This is the code that proves:

`if (status.status == "writeRequested") {

  if (
    status.service == "1234" &&
    status.characteristic == "D6D95414-516C-4DCF-B5CF-3BB1A560AF0F"
  ) {
    this.bluetoothle
      .respond({
        address: status.address,
        requestId: status.requestId,
        value: btoa('Recived message in tablet!') // encode base64
      })
      .then((data) => {
        console.log(data);
      })
      .catch((err) => {
        console.log(err);
      });
    this.recivedMessages.push(atob(status.value)); // decode base64
    this.cdr.detectChanges();
    console.log(atob(status.value));
  }

}`

When i debug the code, i see that the respond() method have success status, but the message is not visible in the other device.

NOTE: when i use the same method to respond 'readRequested' status works fine

Like this:

`if (status.status == "readRequested") {

  if (
    status.service == "1234" &&
    status.characteristic == "D6D95414-516C-4DCF-B5CF-3BB1A560AF0F"
  ) {
    this.bluetoothle
      .respond({
        address: status.address,
        requestId: status.requestId,
        value: btoa('Hello from tablet!')
      })
      .then((data) => {
        console.log(data);
      })
      .catch((err) => {
        console.log(err);
      });
  }

}`

This is the code of my writeRequest method:

`writeRequest(devAddress:string, messageS:string){

this.bluetoothle.write({
  address: devAddress,
  service: "1337",
  characteristic:"99AD1F53-0DC6-4D84-85CF-33CBE47C6EF8",
  value: btoa(messageS),
  type: ""
})
.then((resp)=>{
  console.log('RESPONSE from writeRequest', resp);
})
.catch((err)=>{
  console.log('ERROR IN writeRequest:', err);
})

}`

Is there an error in my implementation? Any idea how to solve it?

Of course, thank you for your time and kindness!

Best regards,
marcui :)

Where are these located:
type=text/ng-template id=home.html
type=text/ng-template id=device.html
type=text/ng-template id=service.html
type=text/ng-template id=characteristic.html

When I send disconnect/close command in Android platform the delay is very short, but in iOS it takes about 10 seconds to disconnect. Is there a way to disconnect faster in iOS?

Running the example app on android using cordova run android, I get the following error when trying to advertise in peripheral mode:

Start Advertising Error : "Attempt to invoke virtual method
'android.bluetooth.le.BluetoothLeAdvertiser 
android.bluetooth.BluetoothAdapter.getBluetoothLeAdvertiser()' 
on a null object reference"

The devices I tried running on is both a Samsung Galaxy S6 mini, LG Nexus 5X and Huawei Ascend P7. Same error.
I have tried re-adding the plugin. initializePeripheral + addService works fine, but when triggering startAdvertising, I get the error. See the console.log file attached.
I have a question more: where is the characteristic "1234" (default for addService, i guess?) set within the code?
I have another question (note: my knowledge of BLE is still limited, so excuse me if the question seem dumb, obvious or a non-issue); what is the BLE profile that is used? Is it one supported by Apple, or do I have to get a MFi license when releasing the app to the App Store?
Thanks!
PS: I also attached the project.
console.log.zip
https://www.dropbox.com/s/67lut57hpe4mfec/test.zip?dl=0

Edit:
Bluetooth is of course enabled and at least the Nexus 5X device should support advertising.
I just stumbled on your suggested solution to remove

 || !bluetoothAdapter.isMultipleAdvertisementSupported()

But unfortunately this didn't resolve it for me.

Hi Rand,
for some reason I can't get your example app to work. It shows the "Central role" screen only, but I'm sure I've previously seen the footer with "Peripherals" & "Log" as well. Also, non of the buttons triggers an action. I'm working on Android. Any guess what I've might done wrong?

Thanks,
Jens

cordova bluetoothle all operation return this error:
error:{
"error":"unsupported","message":"operation unsupported"
}
what is soluction

Hi All,

I'm trying to start advertising but I not able to receive callback, no error returned either from Safari Ispector either xCode inside the obj-c the plugin...

I'm testing it in iPhone 6 (iOs 9,3) and iPhone 5s (iOs 9.3.3)

I've tried a lot of times, the scan method work perfectly....

And another question... what is the diffrence between bluetoothle.initialize and initializePeripheral???

  .service('$lbeservice', function ($config, $http, $cordovaBluetoothLE) {
    return {

      uuid: null,

      init: function (uuid) {

        this.uuid = uuid;

        $this = this;

        $cordovaBluetoothLE.initialize({"request": true}).then(null,
          function(obj) {
            alert("ERRORE");
          },
          function(obj) {
            alert("INIT SUCCESS");
            $this.broadcast();
          }
        );
      },


      broadcast: function(){

        var params = {
          services: [this.uuid ],
          service: this.uuid
         };

        $cordovaBluetoothLE.startAdvertising(params).then(
          function(obj) {
            alert("START ADVERTISING SUCCESS: " + JSON.stringify(obj));
          },
          function(obj) {
            alert("START ADVERTISING ERROR: " + JSON.stringify(obj));
        });
      }


    };
  })

Many Thanks,