MetawearRG reconnection/connection TimeOut Issue

Comments

• Eric

  October 2017

  What is log output displayed in Logcat during the connection attempts?  Is the board at least able to connect with the Android device?

  
  

  Are you stopping the streams before disconnecting?
• shadman7156

  October 2017

  
  

  1.Here is the Logcat when Scanning for devices.  

  2.Here is the logcat while connecting the board with android devices for successful attempt.
  

  3.Here is the logcat when disconnecting manually

  4.Here is the logcat  for unsuccessful Connection attempt. 

  
  

  board is connecting with android device only for the first time, and after dissconnecting it its not able to connect with device.

  Logcat #4 (unsuccessful Connection attempt) keeps on appearing again and again without giving any error message. 

  
  

  Yes, I am always stopping accelerometer and gyro meter before disconnecting the board , since I am using PackedAcceleration and PackedAngularVelocity, I am using these lines for stopping acclero and gyro meter 

  accelerometer.stop();

  gyro.stop();
  accelerometer.packedAcceleration().stop();
  gyro.packedAngularVelocity().stop();
  accelerometer.acceleration().stop();
  gyro.angularVelocity().stop();
  board.tearDown();

  
  

  after these function I am using board.disconnectAsync() to disconnect

   
• shadman7156

  October 2017 edited October 2017

  Hi, 

  I am using the disconnect function in two places:

  1. In Menu option, where only the board get disconnected , and app remain active.

  2. Disconnection board just before closing the app.

  
  

  I noticed that the above problem only occur when #1 method is used. If I close the (#2 method) and restart then its work perfectly fine,   

  
  

  Code Snippet for Condition #1:

  
  

      if (mwBoard.isConnected()) {

      mwBoard.disconnectAsync().continueWith(new Continuation<Void, Void>() {

          @Override
          public Void then(Task<Void> task) throws Exception {
              Log.i("Activity", "Device Disconnected");
             
              return null;
          }
      });
      }

  Code Snippet for Condition #2:

      if(mwBoard.isConnected()) {
      mwBoard.disconnectAsync().continueWith(new Continuation<Void, Void>() {
          @Override
          public Void then(Task<Void> task) throws Exception {
              Log.i("Activity", "Device Disconnected");
              return null;
          }
          });

      }

      super.onBackPressed();

  For Condition #2 app work perfectly fine, Problem arises only for Condition #1
• Eric

  October 2017

  Hrm, so looking at the log output, the board does connect but it fails at the service discovery portion.  

  Try creating a blank app that only has a "connect" and "disconnect' button and see if your Android device can repeatedly connect/disconnect without and issues to your RG board.