Yahboom Micro bit Expansion Board Piano Development Board for BBC Microbit Accessories for Kids to Learning Code Micro bit NOT Include

Description? This is a compact micro:bit piano expansion board, its design is inspired by the piano. It possess 7 white note buttons, 5 black note buttons, 3 pitch buttons to switch high, medium and low tone, and 3 programmable RGB lights. It also equipped with a passive buzzer and audio output interface to support the connection of audio equipment and headphones. We also designed the blocks in this piano board. Users can control it by graphical programming and build different shapes with building blocks. Note : You need to prepare micro: bit for yourself. Without micro: bit, the robot can't work properly. Video link: https://youtu.be/Odb4Huv2u4k Course link: https://www.yahboom.net/study/piano_bit Details? Power supply?2 AAA battery or pin power supply (requires welding pin) Rated voltage?3.3V (built-in boost circuit, the voltage can work stably between 2-3.6V) Rated current?100mA Colorful programmable lights?3 Round function button?3 (L/M/H buttons) Analog piano buttons?Analog piano buttons: 12 (7 white keys + 5 black keys) Sound?1 buzzer + 3.5mm audio output Part List 1 x Micro:bit piano expansion board 1 x Battery box 1 x Battery 1 x Double-sided tape 5 x Transparent pad