node-red & ble uart

It shouldn't be too hard to add - are you interested in trying to do it yourself?

I'd:

• Add an eval function to connect (https://github.com/espruino/EspruinoHub/blob/master/lib/connect.js#L39) that mashes together the read and write functionality (connect, listen for notifications, write, then wait a bit and return anything returned from notifications).
  
• Add a check for eval in the path to https://github.com/espruino/EspruinoHub/blob/master/lib/mqttclient.js#L53 and make that call your eval function, and then send the result of that back as something like /ble/address/result.