First connect neutral wire from the supply to neutral connector on the socket.
Arduino power control relay.
Control up to 65 280 relays with your arduino.
We need to open the box and make connections.
The control pin for the relay is connected to the pin 8 of arduino.
Finally the power outlet box.
Use the io expander and relay expander with the arduino to control up to 65 280 relays.
The connections between the relay module and the arduino are really simple.
Learn how to use relay with arduino how relay works how to connect relay to arduino how to code for relay how to program arduino step by step.
Below given is relay driver circuit to build your own relay module.
Here to turn on the relay with arduino we just need to make that arduino pin high a0 in our case where relay module is connected.
The detail instruction code wiring diagram video tutorial line by line code explanation are provided to help you quickly get started with arduino.
Project tutorial by christian.
Without the jumper cap you need to provide an independent power source to power up the relay s electromagnet through the jd vcc pin.
Circuit diagram and working.
Coming to the relay the 5v and gnd pins for the relay module are given from the arduino uno.
That configuration physically isolates the relays from the arduino with the module s built in optocoupler.