What is this?

This code was created exploring micro:bit's radio; its bluetooth connectivity.

• multipong.py is a distributed version of the classic Pong
• cycle.py sends a message around a group of micro:bits in a cycle.

Clients autoconnect to an existing pool by sending a hello-message when the chip is reset. This hello triggers a reponse from existing clients, resulting in every client knowing what other clients are present; and thereby being able to send a ball over to a different, random client.

Setup

Both applications are standalone programs. I recommend the mu-editor.

1. Open multipong.py in Mu
2. Connect your micro:bit, and press "flash"
3. Repeat this for all micro:bits you want to play on.

Interface

On the top of the screen, there is an indicator of who you are (id from 1 to number of players), and the number of players.

ØØ**_ (two bright lights, two lesser lights) means:

• I am number 2 (ØØ)
• There are 4 clients (ØØ**)

Controls

• A moves the racket left
• B moves the racket right
• reset triggers a refresh of the other clients, and adds a ball to the game. Use reset on one client after removing a client to get it garbage collected.

Future

Some things that could be expanded on:

• There is currently one ball. Many balls at the same time could be fun
• Showing a scoreboard

An outline to a task based on this code has been made (in Norwegian).