Record your own learning of getting started with STM32
The main control is STM32G030F6P6, which is cheap
The screen is 0.96 ST7735 screen, using SPI communication
Four independent buttons onboard
Onboard 3 LED lights (default are red, green and blue respectively)
Onboard 5V-3V3 LDO
IIC, SPI function enabled (SPI is host and only sent)
No external crystal oscillator is used, the maximum operating frequency is 64MHz
Pin configuration:
Left: The upper part is used to link ST-LINK,
The lower part is used to lead out the IIC interface
Right side: The upper part leads to the SPI interface
The lower part is an external 5V source (input to 5V-3V3 LDO, MCU operating voltage is 3V3)
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