title: Working Android BLE scan/send/receive example
body: <p>I'm looking for a working example for BLE implementation that scans (finds/connects) and sends/receives messages in either native Android Studio.</p>
  
  <p>I have not found any examples that actually work, most miss core files, most just crash and some do nothing at all.</p>
  
  <p>I apologize if questions like these are not allowed, feel free to delete it or downvote it as you please.</p>