https://devzone.nordicsemi.com/f/nordic-q-a/21815/android-app-sending-connection-status-to-activityWe have successfully implemented the Template app on Android. However, the architecture of the multiple services and layers is somewhat opaque. Three questions: How does one send the Battery level to the MainActivity.java? How does one send theen-USTelligent Community 13Fri, 05 May 2017 07:16:32 GMThttps://devzone.nordicsemi.com/thread/85700?ContentTypeID=1Fri, 05 May 2017 07:16:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:80149033-aaf2-4f94-bece-99306ef8f5ecFormerMember<p>To send an event to other activities, you should use the sendBroadcast(..) method. To receive an event, you should use an instance of BroadcastReceiver.</p> <p>To get an overview of how BLE and works in android, I would recommend you to read the <a href="https://developer.android.com/guide/topics/connectivity/bluetooth-le.html">Android &quot;Bluetooth Low Energy</a>&quot; section.</p><div style="clear:both;"></div>