Playing with WebSocket and WebBluetooth to send the message between two micro:bits: Gavag and Gegaz.
Press button A to choose the number from 0 to 9 you wish to send over to the other micro:bit Press button B to send the number to other micro:bit.
It uses WebSocket hosted in Heroku: wss://microbitsg.herokuapp.com
Source code: https://github.com/ferrygun/micro-bit-WebSocket