How to Make LED Blinker Using Relay

Hii friend,

I am going to make a circuit of LED Blinker using 12V Relay.

Let's get started,

Components required -

(1.) Relay - 12V x1

(2.) Resistor - 100 ohm x1

(3.) LED - 3V x1

(4.) Capacitor - 25V 2200uf x1

(5.) DC Power supply - 12V

Firstly we have to solder 100 ohm resistor to -ve leg of the LED as solder in the picture.

Next we have to solder wire between common pin to coil-1 of the Relay as you can see in the picture.

Solder +ve pin of capacitor to coil-2 of Relay and

solder -ve pin of capacitor to common pin of the relay as solder in the picture.

Solder +ve leg of LED to the +ve pin of capacitor and

solder -ve leg of LED with 100 ohm resistor to normally open (NO) pin of the relay as you can see in the picture.

Now we have to connect power supply wire to the circuit.

~ We have to give 12V DC input power supply to this circuit.

Connect +ve wire of input power supply to +ve of LED and

-ve wire of input power supply to normally close pin of the relay as you can see in the picture.

Now our circuit is ready so switch on power supply of circuit and now we will observe that LED is blinking.

This type we can make LED Blinking circuit using 12V Relay.

Thank you