1.1 About BBC microbit

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1. What is Micro:bit
？
Micro:bit board is designed by BBC which aims to help children at or above 7 grade
to learn programming better. Micro:bit board has abundant board resources,
including a 5*5 LED metric dot array, 2 programmable buttons, Compass, USB ports,
Bluetooth module etc.. It is only pocket size but very powerful. You can
programming, customize or control it as well.
The latest Micro:bit V2 board comes with a touchable Logo and MEMS microphone
on the front. A speaker is added on the back, so all kinds of sounds can be played
without external equipment. The gold finger at the bottom adds a gear design to
facilitate the user to better fix the alligator clip. In addition, the 2nd generation
Micro:bit board also support sleep mode. Users can make it enter sleep mode by
long pressing the reset button, which can reduce power consumption. The most
important feature is that the CPU performance of the Micro:bit V2 board is much
better than the V1 version, coupled with more RAM. So Micro:bit V2 allow users to
expand more functions and create more creative works.
2. Introduction of Micro:bit hardware distribution diagram
Micro:bit V2 board
Micro:bit V1 board