# Keyestudio Micro bit Power Shield(Black and Eco-friendly)

![image-20260224105856036](./media/image-20260224105856036.png)

## 1. Description

The keyestudio micro bit power shield is fully compatible with micro bit controlboard. It can provide power for control board. And it is easy to fix the control board on the shield with 5 M3*6MM flat screws. What's more, a 20mm watchband can help carry this shield on the wrist. It comes with 2 SK6812 LED to display various colors, a passive buzzer to play all kinds of music, as well as a CR1632 button battery slot and a dial switch to supply power. Note: button battery is not included(CR1632 button battery), but you could purchase it on Ebay or Amazon.

## 2. Parameters

- Working voltage: DC 3.3V
- Working current: 30mA
- Maximum power: 150mA
- Working temperature: -20 C-60 C
- Size: 51.7mm * 42.5mmEnvironmental attributes: ROHS 

## 3.Connection Diagram

![image-20260224110153027](./media/image-20260224110153027.png)

## 4.Test Code

[Click to download the code](./Code.7z)

![image-20260224110229109](./media/image-20260224110229109.png)

## 5.Test Results

Upload the code successfully, and then install a CR1632 on the shield according toconnection method. Dialing the DIP switch to the ON end, the LED dot matrix of the micro bit control board displays a heart-shaped pattern. Furthermore, the passive buzzer plays the happy birthday song once, and the two SK6812 LEDs display red, green, and yellow alternately. 

## 6.Resource

[https://fs.keyestudio.com/KS0482](https://fs.keyestudio.com/KS0482)