STM32 Black Pill

Black Pill Board Features

Not pin compatible with Blue Pill due to power pin locations

• Use on BLACK-PILL-HUB
  • Can't be used on BLUE-PILL-HUB card without modifications
• STM32F401CCU6 or STM32F411CCU6 CPU
  • STM32F401CCU6
    • 84 MHz CPU clock
    • 256 KB Flash
    • 64 KB SRAM
  • STM32F411CCU6
    • 100 MHz CPU clock
    • 512 KB Flash
    • 128 KB SRAM
  • 3.3V regulator
  • 2x12-bit, A/D converter
  • 7-channel DMA controller
  • SPI, I2C, UART interfaces
  • 7 timers
• SPI ROM footprint
  • Fits an W25Q32JVSSIQ
  • 32 Mbit SPI Flash ROM,
• USB-C
• Reset button
• Power LED
• PC 13 LED
• SWD connector
• Warning: The +5V pins on this board are directly connected to the +5V pin of the USB connector. There is no protection in place. Do not power this board through USB and an external power supply at the same time.

• WeAct Black Pill V1.2 - Helpful page

Black Pill Reserved Pins

• PA0 - On-board USER KEY - needs INPUT_PULLUP
• PC13 - On-board LED
• PB2 - BOOT1
  • Pulling this pin down by external hardware causes the board to boot to serial
  • Can be ignored by unplugging USB (power) while holding both reset and BOOT1 buttons on the Black Pill card
  • Release reset button first
• PA11 - USB-M
• PA12 - USB-P
• PA9 - Serial TX1
• PA10 - Serial RX1