1. Download the relay data: http://pan.baidu.com/s/1o8m0aim Product features: 1. Use with D MINI 2. Arduino compatible, program using Arduino IDE 3. 11XI/O pins 4. 1XADC pin (input 0-.3V) 5. Support OTA online Shipping list: 1. Long female pins x2pcs 2. Short female pins x2pcs 3. pins x2pcs 4. RELAY Shield x1pcs