Design Overview

Also see the CC BY-NC-SA 4.0 license.

Project Introduction

The power module designed based on SC8721.The SC8721 is a buck-boost ic.


  • 2.7V to 22V input voltag range
  • 2.7V to 22V output voltage range(If the ic is sc8721b, the output voltage range is 0.6V to 22V)
  • Through its I2C interface, user can program the output voltage and output current limit and switching frequency
  • Provide routine code, software platform is Arduino, and hardware platform is ESP32s3

Project SCH

Project PCB