This is the famous Arduino compatible board that based on STM32F103C8T6 ARM Microcontroller. STM32F103C8T6 is ARM Cortex-M3 core from STMicrcoelectronics. This board is often called the Blue Pill (Matrix reference). Of course with the 32-bit ARM CPU, it can easily beat Arduino UNO in performance. As an added bonus, you can easily program this board using your Arduino IDE.

With the pre-soldered header pin, you can start using this powerful Arduino compatible board out of the box.

Features

• MCU: STM32F103C8T6
• Core: Single Core, Arm Cortex-M3
• Operating Voltage: 3.3VDC
• Max. Clock Speed: 72MHz
• FLASH: 64KB
• SRAM: 20KB
• HSI: 8MHz
• LSI: 40KHz
• HSE: 8MHz
• LSE: 32.768kHz
• GPIO Pins – 32 with external interrupt capability
• Timers – 3 16-bit Timers, 1 16-bit PWM Timer
• PWM Pins – 15
• Analog – 10 Channels of 12-bit ADC
• I2C – 2 I2C Peripherals
• USART – 3 USART Peripherals with hardware control
• SPI – 2 SPI Peripherals
• Other Peripherals – USB 2.0 Full Speed, CAN 2.0B
• Power Sources
  • Any +3.3V pin (+3.3V)
  • Any +5V pin (+5V)
  • USB connector (+5V)
• PCB Size: (w x l)23mm x 53mm

Note: 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.

Note: This board may have a wrong value of resistor on the USB D+ pin. Instead of a 1.5kΩ, it has either a 10kΩ or 4.7kΩ resistor. This can be solved by replacing the resistor with the right value.

Packing List

• 1 x STM32F103C8T6 Blue Pill Pre-soldered header

Links

• STM32duino forum
• Arduino_STM32 library, Github
• how you can program an STM32 F103C8T6 with Arduino IDE using UART, by maker.pro
• Getting Started with STM32F103C8T6 Blue Pill, by electronicshub.org
• STM32F103C8T6-Blue-Pill, by stm32-base.org

Video