Cascading and Overlapping Multi-Function Sensor Expansion Board for Raspberry Pi B+
Features: 1. It's the basic board for some sensor and other modules it's designed to raspberry pi b+. Based on the expansion board we will develop more sensor and other modules 2. Cascading and overlapping. 3. With SPI UART (serial) interface easy DIY. 4. Output 5V/500mA. 5. With power LED