Bitty Blue provides a collection of fun things to do with a BBC micro:bit (or compatible device) and Bluetooth. Play with 3D "PolySquiggles", use your micro:bit as a compass, have fun with the micro:bits buttons, design patterns and send them or text to the micro:bit LED display. You can also use your micro:bit to monitor the temperature and Bitty Blue will tell you if it gets too hot or too cold. Finally, you can send messages from your micro:bit to the Bitty Blue message display feature.
Lots of fun and educational too!
An application by Bitty Software
http://www.bittysoftware.com
Twitter: @bittysoftware