ITEM NAME:1Pcs Raspberry Pi Power Relay Board Expansion Module Shield Supports Rpi A+ D6K3 1Pcs Raspberry Pi Power Relay Board Expansion Module Shield Supports Rpi A+ D6K3 Suitable for Raspberry Pi A+/B+/2B/3B.Using high quality relays. Relay allows access up to 5A 250V AC or 5A 30V DC. With optocoupler isolation, to avoid high-voltage circuit interference. With relay indicator, easy to view the working status of the relay. Jumper selection with relay for easy selection of other RSP control relays. Raspberry Pi GPIO interface: For connecting Raspberry Pi Relay screw terminal: For connecting target devices Optocoupler : PC817 optocoupler chip Relay indicator: LED on: relay NC is open, NO is closed LED off: relay NC is closed, NO is open Power indicator Relay control jumper: short the jumper: control the relay by standard I / Os used in the example code open the jumper: control the relay by custom I / Os via jumper wires The expansion board has four terminals, each terminal has three pins for connecting external circuits. color: blue Material: plastic + metal Package Included:1* Expansion Module
