STM32F100C8

STM32F100C8 is the MCU of BluePill board

Some Important links

Images

PinOut

Debugger

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ST-Link V2 PIN Description Blue Pill PIN Description
CN4 1 VDD Target P2-1 VCC 3.3v
CN4 2 SWCLK P2-3 PA14 SWCLK
CN4 3 GND P2-4 GND
CN4 4 SWDIO P2-2 PA13 SWDIO