Create a flashing lights circuit with a 555 timer and a relay

I'm gonna you how to make a alternating pulsating circuit (using 555 timer) to run a relay.
Depending on the relay you may be able to run 120vac light.
It does not alternate that good with small capacitor(I will explain later on).

Step 1 What you will need.

-1 5 pin relay (5 vdc)
-Ceramic capacitor(For reducing arcing on the relay)
-1 red LED(optionnal)
-1 green LED(optionnal)
-2 110 ohm resistor(to go with LED)
-10 to 1000 uf electrolitic capacitor
-2 1k ohm resistor
-1 555 timer
-perf board
-wire
-soldering iron
-solder
-wire cutter

Comments

[foxtrotbravoone]

Hi.
I am planning to buld a 10 x 3W amber led bulb night rider type system, with 5 on each side of my 4x4.
Could anyone help by suggesting a good layout as Im kind of new to all this but keen to learn.
I am planning to use a 9V battery by the way.

Thanks.

[tuscani]

oye como elecrtonico no se,pero como dibujante jejejeje uffffffff.....

[agis68]

try this circuit (but made it for 12V) or do the needed changes This can carry more leds (due to 12V)

[suteke]

i need to learn 15 led

[agis68]

 might works if you put them in parallel...I assume you want to make a "knight Rider" flash light???

[Renagade]

thanx for the instructable! question: can you do this with a bunch of LEDs? you know like making a ring of flashing lights, one lights up at a time.

[steven123654]

LED Chaser?? If so, this circuit can't but there are many on the net.

[steven123654]

You probably could with more 555,you should look it up on the net (lots of projects for the 555)

[javier7high]

this can make a wave with more LEDs? you know like one turns on while the last turns off?

[Renagade]

i dont know

[Renagade]

k thanx, i'll check it out ^_

[SurferGeek]

More pictures and uploading the video to Youtube or other online service.

[GorillazMiko]

Cool. You could have a few better pictures, that would be cool, and you might want to embed the video into the Instructable.

[steven123654]

ill try to add more pics

[GitarGr8]

I feel like there is a lot between steps 2 and 3 that got left out. Instructables is more about explaining how you built something than just simply posting the schematics. I'd really like to know how the 555 chip works, and the theory behind the circuit's design.