The MINI-M0 for STM32 is a small ARM Cortex-M0 development board containing the STM32F051R8 microcontroller. It perfectly fits into a standard DIP40 socket. Board is equipped with a 16MHz SMD crystal oscillator and 32.768KHz crystal which can be used for the internal RTCC modules. It has a Reset button and three signal LEDs.
Board comes preprogrammed with a fast USB-UART bootloader, so no external programmers are needed for development. It operates on a 3.3V power supply. The onboard voltage regulator allows the board to be powered directly from the USB cable.