Merge pull request #461 from RADAR-base/fix-polar

Fix polar plugin

gradle/android.gradle

@@ -1,6 +1,6 @@
 android {
-    compileSdkVersion 33
-    buildToolsVersion '32.0.0'
+    compileSdk 34
+    buildToolsVersion '34.0.0'
 
     defaultConfig {
         minSdkVersion 26

plugins/radar-android-polar/README.md

@@ -50,3 +50,20 @@ Add the provider `.polar.PolarProvider` to the Firebase Remote Config `plugins`
 This plugin was build using the [POLAR BLE SDK][1].
 
 [1]: https://github.com/polarofficial/polar-ble-sdk
+
+
+## Information
+
+On the **Polar Vantage V3**, streaming data is only possible when a training session is started on the watch (see https://github.com/polarofficial/polar-ble-sdk/issues/456).
+
+Here are the instructions how to start data streaming:
+
+1. Have a phone running the app with Polar SDK paired with the watch. 
+2. The sensor data sharing must be enabled for the phone in the watch pairing menu (General settings/Pair and sync/Paired devices/SDK/Share).
+3. Go to the 'Start training' -menu in watch and choose the desired sport profile.
+4. On phone running the app with Polar SDK connect phone with watch.
+5. Start the recording in the app.
+6. On the watch start the training recording or stay in 'Start training' -menu.
+
+Note! When streaming data we would recommend removing Polar Flow app from the mobile if it was installed. All other phones or Polar devices not used for streaming should be shut down or at least Bluetooth turned off. 
+Also after each streaming session you might need to go back to the watch mode before starting a new exercise & streaming session.