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Christmas dancing leds

video Christmas dancing leds

Christmas dancing leds by CD4017 ic and LM358 ,the leds are dancing by the music or speach,with microphone in the box

7 comments

Dec 9, 2009. 12:33 PMxmastex says:

MINIATURE ELECTRET MICROPHONE.
Where could i find such a component? How do i connect it? Doesn't it have any reference number like the integrated circuits used here?
Thanks

Dec 9, 2009. 1:12 PMmacobt (author) says:

Hi
Micriphone you can find in old cassete radios with recording,in mobile phones,you can use anykind of electric microphone,look i your junk parts,if you have it :)

Jul 28, 2009. 9:10 PMmarcia09 says:

on your schematics there are two parts. How do you connect them ? Is the second part (with transistors) in case one wants to place more than 11 leds ?

Feb 26, 2009. 4:26 AMgomjabar says:

That pesky link! Thanks macobt

Feb 26, 2009. 1:06 PMmacobt (author) says:

you welcome. If you made this,post some pictures or video regards macobt

Dec 19, 2008. 9:23 AMAnonyMouse69 says:

very cool. but posting a video and a pic of the schematic isnt very informative, could you post some building details with steps and more information? this looks like a cool project to build

Dec 19, 2008. 8:32 AMmacobt (author) says:

here is schematic and parts