Eleduino SAKS Hat for Raspberry Pi 2/A+/B+ Support Raspberry Pi A+\B+\Raspberry Pi 2You can pin to pin installed directly With 3.3V, 5V power supply pin expansion unit. Highly functional devices commonly used reasonable integration, integrating more functional units. Comes with serial port pinsI2C port pin unittransfer Status Indicator 8 LED GPIO design, each group of 4 LED. A set of exclusive GPIO port, a group of shared GPIO ports a