The BBC micro:bit is an open development board that allows you to run code on it and have access to all of the hardware.
You can use your BBC micro:bit for all sorts of cool creations, from robots to musical instruments – the possibilities are endless. This little device has an awful lot of features, like 25 red LED lights that can flash messages. There are two programmable buttons that can be used to control games or pause and skip songs on a playlist. Your BBC micro:bit can detect motion and tell you which direction you’re heading in, and it can use a low energy Bluetooth connection to interact with other devices and the Internet.
with free gpio expansion board. you can start you micro:bit easy
【the expansion board】
Through the screw pressure to install the expansion board, it will inevitably lead to bad contact situation
This kit protects against the bad connection:
with hexagon screw and hexagonal wrench,avoid to cause slipped screw head
Gold plating make touching easy
Mount the copper wire at the hole of the expansion board to add touching area