How to Make Double LED Blinker Circuit on PCB

Hii friend,

Today I am going to make a Project circuit of Double LED Blinker.This circuit is made by Timer IC 555.

Let's get started,

Step 1: Take All Components As Show Below

Components required -

(1.) IC - 555 x1

(2.) IC Base - 8 Pin x1

(3.) Capacitor - 16V 100uf x1

(4.) Resistor - 10K x1

(5.) Resistor - 1K x1

(6.) Resistor - 220 ohm x1

(7.) LED - 3V x4

(8.) PCB

(9.) Battery - 9V x1

(10.) Battery clipper x1

Step 2: Circuit Diagram

Connect all components according to the circuit diagram.

Step 3: Solder IC Base on the Pcb

Solder 8-Pin IC base on the PCB board.

Step 4: Connect 1K Resistor

Short pin-4 and pin-8 of the IC using jumper wire and

Next we have to connect 1K resistor to pin-7 to pin-8 of the IC as solder in the picture.

Step 5: Solder LEDs in Series

Connect two LEDs in series and connect +ve of LED to Pin-8 of the IC as given in the circuit diagram.

Step 6: Connect 220 Ohm Resistor

Next solder 220 ohm Resistor between pin-3 to -ve of LED as per circuit diagram.

Step 7: Solder Capacitor and Remain 2-LEDs

Now solder More remaining two LEDs on pcb as given in the circuit diagram and

also connect 16V 100uf capacitor.

~ Solder -ve pin of capacitor to pin-1 and +ve pin of capacitor to pin-2 of the IC as circuit diagram.

~ Also Short pin-2 and pin-6.

Step 8: Solder 10K Resistor

Next we have to solder 10K resistor between pin-6 to pin-7.

Step 9: Connect Battery Clipper Wire

Now connect Battery clipper wire to the circuit.

Solder +ve wire of battery clipper to pin-8 of IC and

solder -ve pin of battery clipper to pin-1 of the 555 IC.

Step 10: Circuit Is Completed

Now our circuit is completed so connect battery to the battery clipper and now you can see the LEDs are blinking.

Step 11: Result

Result - As you can see in the picture LEDs are started blinking.

LEDs are blinking with 1/2 second timing to each other.

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Thank you