Relay module for dummies

Other Hardware Motors, Mechanics, Power and CNC
20

hey..
Relay works like a switch only..the thing is that it works from the 5v input signals from Arduino that turns it On or OFF..

for simple connections like connecting a Lamp all you need to do is

  1. Take the live wire from the source, i.e your home and connect it to "COM"
  2. take the live or positive wire of the Lamp and connect it to "NO"
    3)COnnnect the Neutral of both the supply(the wire from house socket) and the LAMP together.

4)Vcc of Relay module to Arduino's 5v output
5) GND of relay module to Arduino's GND output
6) IF u are using the Relay no 1 then connect the 1st Relay's Input pin from the relay module to any of the Arduino's output pins as per your program.

Hope you find this helpful!

GOOD LUCK!