STM32F103 core board

Demo Video: https://www.bilibili.com/video/BV1xG411k7x8/?vd_source=71bdc184aa2caee736d377a8a9585acd

The main control is STM32F103C8T6,

Support TypeC interface one-click download program and SW interface download program.
Onboard 0.96 LCD, 2 LEDs, 2 keys.
Interfaces such as iic spi and PAx PBx pins are introduced.

A 5V 3.3V power supply is introduced. There are also 2 test points.

There is an example project in the attachment to realize a breathing lamp.

About the shell: The shell that uses the Arduino board (a miracle of power)