title: How to pairing with a medical device through Bluetooth?
body: <p>I have a tonometer <a href="https://medical.andonline.com/a-and-d-connect-app" rel="nofollow noreferrer">https://medical.andonline.com/a-and-d-connect-app</a></p>
  
  <p>I trying to make a mobile app for this.
  I pairing with him throw Bluetooth, read all characteristics but indicator does not change from 'Pr' to 'End' It changed to 'SET' and nothing happen, after a couple seconds device disconnect.</p>
  
  <p>A&amp;D medical developers have an examples - <a href="https://github.com/andengineering" rel="nofollow noreferrer">https://github.com/andengineering</a>  but it does not work for me too and no one updated code in repos. </p>