STM32 Blue Pill

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Blue Pill Board Features

  • Used on BLUE-PILL-HUB card
  • STM32F103
    • 72 MHz CPU sclocl
    • 64KB Flash (most have 128KB)
    • 20 KB SRAM
    • 3.3V regulator
    • 16 MHz crystal
    • 1 of x12-bit, A/D converter
    • 7-channel DMA controller
    • SPI, I2C, UART interfaces
    • 7 timers
  • MicroUSB
  • Reset button
  • Download jumper
    • Replaced with a slide switch
  • Power LED
  • PC 13 LED
  • SWD connector
  • RTC crystal
  • 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.


STM32F103C8T6-Blue-Pill-Pin-Layout.gif

Blue Pill Card Boot Jumpers

BootJumpers.PNG

Annotated

STM32-Annotated.jpg

Blue Pill Card Schematic

STM32-Schematic.jpg

Blue Pill Mechanicals

STM32-Mechanicals-2.jpg

Arduino IDE

Uploading Code to Blue Pill

  • 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

BluePill Jumper.png

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

ArduinoIDE Tools Menu.png

  • Upload code
    • Takes a while
  • Set Switch (or jumper) on Blue Pill module set towards edge of card to run
  • Press reset button