Raspberry Pi Relay Shield


Only need five pins of Raspberry Pi (RPI) to control it, 5V, 3V3, GND, SDA and SCL.

  • On board MCP23008 for IIC interface, relay connects in the IIC, save the GPIOs of RPI and can cascading modules
  • On board ULN2803 relay control
  • Four relays mounted on board, but more relay can hook on it via the cable terminal or connect cascadely
  • SMD type toggle switch for adapting IIC address, you will need any tiny tip ends for operating it.
  • Four LEDs indicator connected correspondingly to relays.
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