Bluetooth for the PICO

Yes, sorry - it's a bit of a brain dump. Best steps are:

• Buy a pinned HC-05 Bluetooth module (link above)
  
• Connect it to GND->GND, 3.3v->3.3v, RX->B6 and TX->B7
  
• Connect to your PC, pair and use it using the instructions on the Bluetooth page.
  
  

Getting two modules talking to each other is a bit tricker, but if you can follow the instructions to change the name of the Bluetooth device then it'll be trivial.

One minor thing: If you plan on using Bluetooth for data (rather than just the Espruino command-line interface) you'll need to make sure you move the command-line interface away first, by calling USB.setConsole() from the onInit() function.