micro:bit 4 Channel Relay Breakout


This is a 4 channel relay add-on for the micro:bit. These relays can be used to turn on/off different applications such as lights, motors, LEDs, valves and many more. Each relay is rated for 240VAC 3A and have both the normally-open and normally-closed terminals.

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Pin Configuration:

  • Relay 1 ------ P13
  • Relay 2 ------ P14
  • Relay 3 ------ P15
  • Relay 4 ------ P16


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