STM32 microcontroller with LQFP64 package STM32F411RET6 ( 512K FLASH ) Two types of extension resources Arduino Uno Revision 3 connectivity STMicroelectronics Morpho extension pin headers for full access to all STM32 I/Os mbed-enabled (mbed.org) On-board ST-LINK/V2-1 debugger/programmer with SWD connector selection-mode switch to use the kit as a standalone ST-LINK/V2-1 Flexible board power supply USB VBUS or external source(3.3 V, 5 V, 7 - 12 V) Power management access point Three LEDs USB communication (LD1), user LED (LD2), power LED (LD3) Two push buttons: USER and RESET USB re-enumeration capability: three different interfaces supported on USB Virtual Com port Mass storage Debug port Comprehensive free software HAL library including a variety of software examples Supported by wide choice of Integrated Development Environments (IDEs) including IAR, Keil, GCC-based IDEs