The MINI-M4 for STM32 is a small ARM Cortex-M4 development board containing the STM32F415RG microcontroller. It is pin-compatible with PIC16F887 and PIC18(L)F45K20 microcontrollers and it perfectly fits into the standard DIP40 socket. Board is equipped with a 16MHz SMD crystal oscillator and 32.768KHz crystal which can be used for the internal RTCC module. It has a Reset button and three signal LEDs.
The MINI-M4 for STM32 comes preprogrammed with a fast USB HID 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.