Communicate with the Puck code

Ok, all you do is:

• Write a function on Puck.js, maybe function myFunction() { ... }
  
• Then send an MQTT packet like "myFunction()\n" to /ble/write/de:vi:ce:ad:dr/nus/nus_tx
  
  

If you're interested in what is sent as a reply and don't want Espruino polluting the response with characters like > for the REPL, just prefix the line with char code 16:

"\x10myFunction()\n"