The STM32 Blue Pill is a popular development board based on the ARM Cortex-M3 STM32 microcontroller series from STMicroelectronics. This board is a low-cost Minimum System Development Board for ARM Microcontroller STM32F103C8T6. It is widely used because of its affordability, compact size, and extensive features, making it a favorite choice among hobbyists, students, and professionals.
