A mini piano music expansion board designed suitable for Micro-bit, comes with four cool coloured lights. with you, use your creativity and art cells, your Micro-bit can also be played out of the art style. On-board Micro-bit interface, can be directly plugged into use On-board buzzer, can play beautiful music. On-board capacitive touch chip, leading to 13 touch buttons, using I2C interface communication. On-board 4 coloured lights, one signal line can control the colour of the lights. Leads out the control pins of the module and the SPI and some GPIO pins on the Micro-bit, convenient suitable for expansion use. Touch chip:TTP229 Colour light lamp bead:WS2812B Working voltage:3.3V Colour:Photo Color Material:PCB Package Contents: 1 x Piano Music Expansion Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.