Sunday, November 15, 2015


Arduino KY-019 5V relay module


  • S Arduino pin 10
  •  +    +5V
  •  -    GND


Relay switches on and off. You can hear the relay ticking. On the KY-019 is also a led to see the status.
You can use the relay ports to control a more heavy power load.

There are also other modules available with more (e.g. 2 , 4 , 8 ) relays

More info

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