Users are advised to use Bitty Blue or Bitty Controller from BittySoftware ( https://bittysoftware.blogspot.com/) instead of thisapplication, which is no longer actively supported.https://play.google.com/store/apps/details?id=com.bittysoftware.bittyblue.BittyBluehttps://play.google.com/store/apps/details?id=com.bittysoftware.bittycontrollerThe BBC micro:bit is an exciting, programmable device which onemillion, excited British schoolchildren recently received. It hasbuttons, a display, an accelerometer, magnetometer, an edgeconnector to connect electronic things to and... it has Bluetooth.micro:bit Blue is maintained by Bitty Software. micro:bit Blue willlet you explore and play with examples of some of the kinds ofthings Bluetooth makes possible with your micro:bit. The menucontains icons for a series of demonstrations which show variousaspects of the micro:bit can be used from another device like anAndroid smartphone over Bluetooth. Each screen has a help pageattached to it which explains what the demo does and how it works.You can follow Bitty Software on Twitter at @bittysoftware Here area few of the things you can do with this application and a BBCmicro:bit - Control a 3D image of a micro:bit on the screen of yourphone, rotating it in space by moving your real micro:bit - Monitorthe temperature of your micro:bit's processor - Use your phone as atrivia scoreboard and award coloured stars by pressing buttons onyour micro:bit - Connect your phone to a Bluetooth heart ratemonitor and watch a histogram of your heart rate develop as youexercise. Watch the same histogram reflected on the display of yourmicro:bit so you can wear the micro:bit and keep your phone out ofsight in a bag - Play the Animal Vegetable Mineral guessing game -Count things with your micro:bit by pressing button A and when donesend the accumulated counter value to your phone using button B.Your phone doesn't need to be involved when counting, only whenuploading the final value. You could even count squirrels. Orsomething else :-) You'll need the right code on your micro:bit. Ifin doubt, visithttps://github.com/bittysoftware/microbit_blue_device_code whereyou'll find some handy hex files available for download.