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555+4017 "Knight Rider" LED chaser

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Uploaded by on May 31, 2008

This circuit uses the 4017 decade counter and a 555 square wave generator for the clock.

Common questions I've been getting about this video.

Q) How did you get it to go back and forth?
A) By means of the 4148 Diodes. These allow 2 outputs to be connected to one led, thus giving the back and forth movement.

Q) cAN i hAz scheMatiC?
A) Please, please, speak in regular "proper" English. Yes Yes everyone makes spelling mistakes.
And I do not have an actual schematic of this circuit. I do really need to start making some though. I'm sure if everyone bugs me enough I will make some.
I believe Jose Pino has a schematic on his website of this circuit.

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Uploader Comments (davidbball13)

  • dude i need the diagram!!!

    plz. ty

  • @xtigoxxx description

  • wow your's is nice! i made mine night rider to. but how did you get it to go back AND forth?

  • Ha thanks man. I used 4148 diodes. Just mess around with them. Their are used so the electronics can only flow one way. so you can have 2 ouputs going to the same led

  • lol awesome project......and i love that mefisto's cafe by streetlight is playing in the background lulz

  • Electronics+ska is the best combo ever

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All Comments (15)

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  • LOVE the music STREETLIGHT MANEFESTO!!!!!!!!!!!

  • nice

  • really? because wehn i did mine i could not do 2 outputs. i'll try that with mine! thanks a lot!

  • Yeah allelectronics is an excellent site. But as you progress in the awesome world of electronics. Try to buy off digikey. In bulk. Their shipping is super fast and cheap and they have almost like every part you'd ever need

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