ARM Blue Pill

– STM32F103C8T6 microcontroller with ARM Cortex-M3 core running at 72 MHz
– 64 KB Flash and 20 KB SRAM for responsive embedded applications
– 37 GPIO pins with 3x USART, 3x SPI, 2x I2C, CAN, and USB 2.0 support
– 10x 12-bit ADC channels and multiple PWM outputs for sensors and motor control
– Compact board (53 x 22 mm) with Micro USB power and SWD debug interface
– Wide use cases: IoT, robotics, data logging, industrial and educational projects