title: BLE broadcast without pairing
body: <p>I'm working on a physical web oriented application.</p>
  
  <p>I would like to have some devices that continuously broadcast string messages using bluetooth low energy.
  The end point is a ionic application that should just receive and show this messages when required.</p>
  
  <p>Is it possible to implement this kind of behaviour <strong>without a paring</strong> phase between the bluetooth broadcaster and the mobile phone?</p>
  
  <p>At the moment I worked with with eddystone protocol, building a beacon with my raspberry pi, but I have some limitations due to 17 characters length constraint of url sizes. (I'm using url as a string to pass data).</p>