No connection BLE Espruinohub

If you want to add your own named topics (or strings), you probably need to modify EspruinoHub to add those topics.

Here, you can see the attributes listed:

https://github.com/espruino/EspruinoHub/­blob/master/lib/attributes.js#L186

So just add your own handler. For instance this should produce a string with a str topic for attribute 0xFFFC:

  "fffc": function (d) {
      var s  = "";
      for (var i = 0; i < d.length; i++)
        s += String.fromCharCode(d[i]);
      return {str: s};
    }
  },