STM32

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.

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

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.
Upper right pin is GND on Blue pill card, but is 5V on Black pill card
Reset is on a different pin
Some IO pins are om different spots

FTDI connection to Blue Pill Hub FTDI connector
- FTDI TX (to Blue Pill RX) (PA10 pin on STM32)
- FTDI RX (to Blue Pill Tx) (PA9 pin on STM32)
Set Switch (or jumper) on Blue Pill module set towards center of card to upload card to board

In Arduino IDE,
- Tools
  - Board "Generic..."
  - Upload method: "Serial..."
  - Port: [the comm port]