The micro:bit RGB full-color LED light ring expansion board can be a cool clock, a timer; a lucky wheel game console; a wearable decoration; or an interactive colorful decorative pendant.As long as the micro:bit motherboard is installed, this ring light expansion board with 24 RGB lights onboard is a beautiful interactive work for makers. You can turn into a tomato timer through the on-board buzzer; turn into a color music spectrum analyzer through the on-board microphone; we also reserve two external ports, P0 and P1, by connecting a large number of boson and Gravity sensor, you can create more interesting gameplaySupport USB interface power supply, you can directly use the power bank to supply power, or the computer USB power supply;Support PH2.0 interface power supply, can use battery box or lithium battery for power supply;24 RGB single-line lights, 16 million colors can be mixed at will;makecode graphical programming;Onboard microphone and buzzer;Lead out the P0 and P1 interfaces, and distribute the connecting lines to support the expansion of the boson module;Ultra-thin volume, more suitable for wearable and pendant applications;Technical SpecificationsSupply voltage: 3.5-5VWS2812 single line RGB light x 24On-board buzzer x 1On-board microphone x 1Number of interfaces: IO expansion (P0, P1) x 2, PH2.0 power interface x 1, USB power interface x 1colour: blackMaterial: PCBSize: diameter 80mmPackage Contents:1 x Full color LED light ring expansion board2 x Double-ended PH2.0-3pin cable5 x M3x4 screwsOnly the above package content, other products are not included.Note: Light shooting 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.