555 timer + 4017 leds

[Chewytube1]

Looks like the thing that all the starfleet ships have in star trek under the viewscreen! awesome!

[bilygiat]

yeah~~

[sciencoking]

uuuh... does anybody else think of knight rider now?

[conrad2468]

OMG! i was just gonna say that!

[friteza88]

hehe true! kitt

[digitalbroadcaster]

The circuit is simple enough to build. The chip is a LM4017 decade counter. There are eight channels that this chip can output, one of them being the reset pin (to make it loop). Fitting two LED's per output is all it takes to do this. Search for DECADE COUNTER on a circuits forum and you'll find it. It is as common as a 555 chip and costs pence/cents.

Unless you have already built one by now? I've made dozens of these. Approx 10 components to make the whole thing do whats in this video.

[vegmatic1966]

Decade counter. Decade = 10 it has 10 channels.

[digitalbroadcaster]

Oops!  Yup! My mistake. I counted on my fingers but gave up after three. :oD

[cecreohm]

Sorry to say but no, A decade counter counts frequency information discretely by decades.

If you are familiar with the term octave (a range of frequencies where the highest frequency is double the lowest), a decade is a range where the highest is 10 times the lowest.

Oh, your comment was 11 months ago.

[bboy188]

Can you post the schematics, or link to them please. Thanks.

[carlossabates]

Where i can get the 4017 ??? im looking on internet but i can't find a place to buy it!!! can someone help!!! please!!!

[bilygiat]

which country u from???

[MrXtronnick]

hello bilygiat im from Texas i used to find this things in my country in my city downtown almost everywere all kind of things but here im lost the only place i know so far is radioshack but they have nothing so is there any place i can get this stuff on line???help me if is possible thanks!!! :)

[davidbball13]

i go to allelectronics website just put a .com at the end

[Therunescapegeek]

whats a diy

[quisp2112]

do it yourself

[ProzacGraal]

no, it's dumb incompetent yakkity-yak-yak