http://www.astar-tek.com.tw/news/microbit%E8%97%8D%E8%8A%BD%E9%85%8D%E5%B0%8D/
http://usr.nkust.org/2018/04/14/microbit-bluetooth-app/
https://sites.google.com/site/wenyumaker2/02micro-bit-yan-jiu/06yu-lan-ya-shou-ji-de-hu-dong