BBC micro:bit All In One
microbit
https://microbit.org/get-started/first-steps/set-up/
https://microbit.org/get-started/user-guide/overview/
zh-cn
https://microbit.org/zh-cn/get-started/first-steps/introduction/
https://microbit.org/zh-cn/code/
https://microbit.org/zh-cn/get-started/user-guide/overview/
tutorials
<iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/u2u7UJSRuko?start=1" title="YouTube video player" width="560"></iframe>MakeCode
https://makecode.microbit.org/