O7PKE

STM32 Mini Balance Car

Overview

First of all, the work is referenced from: https://oshwhub.com/leannn/minibot.
Since I don't know esp32, I used STM32F103C8T6, used ST-Link to download and debug, the code was generated using STM32cubemx, the PCB design led out two serial ports, realized Bluetooth remote control, onboard MPU6050, driver used TB6612, power supply battery used 12V aircraft battery, designed LM2596-5 DC-DC and RT9013 LDO power supply circuit, and led out NRF24L01 interface. The motor uses N20 reduction motor with encoder. The
designed PCB needs to be cut from the middle, you can use a table saw or other methods. Reduce design costs. Copper pillars are also needed.
The design is fully open source. ![IMG_20230113_180048.jpg]

![IMG_20230102_185637.jpg]

Please refer to the schematic diagram for specific content. Please select **SMD** Which project
PID needs to be adjusted? I was a bit busy so I didn’t adjust it.

Design Files

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Update:2025-06-24 09:40:10

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