STM32F3 DISCOVERY

STM32F303VCT6 microcontroller featuring 256 KB Flash, 48 KB RAM in an
    On-board ST-LINK/V2 with selection mode switch to use the kit as a standaloneST-LINK/V2 (with SWD connector for programming and debugging)
    Board power supply: through USB bus or from an external 3 V or 5 V supply voltage
    External application power supply: 3 V and 5 V
    L3GD20, ST MEMS motion sensor, 3-axis digital output gyroscope
    LSM303DLHC, ST MEMS system-in-package featuring a 3D digital linear acceleration sensor and a 3D digital magnetic sensor
    Ten LEDs:
    LD1 (red) for 3.3 V power on
    LD2 (red/green) for USB communication
    Eight user LEDS, LD3/10 (red), LD4/9 (blue), LD5/8 (orange) and LD6/7 (green)
    Two pushbuttons (user and reset)
    USB USER with Mini-B connector
    Extension header for all LQFP100 I/Os for quick connection to prototyping board and easy probing