The STM32F103C8T6, commonly called the “Blue Pill” is a popular development board featuring the STM32F103C8 microcontroller. Due to its affordability and versatility, this board is widely used in the maker and DIY electronics community.

The STM32F103C8 microcontroller is based on the Arm Cortex-M3 core. It offers 64KB of flash memory and 20KB of SRAM and operates at a maximum frequency of 72MHz. It features a rich set of peripherals, including ADCs, timers, UARTs, SPI, I2C, USB, and CAN interfaces, making it suitable for various applications.

The “Blue Pill” development board provides easy access to the microcontroller’s pins through header pins, allowing for easy prototyping and experimentation. It typically comes with an onboard LED and reset button for basic functionality testing.

Developers often use the STM32F103C8T6 Blue Pill board for various projects, including robotics, IoT devices, sensor interfaces, and motor control. Its open-source support and compatibility with popular development environments like Arduino and STM32CubeIDE make it a preferred choice for hobbyists and professionals.