555 Breathing (Pulsing) LED Circuit

Link to page: http://www.pcbheaven.com/circuitpages...

I plan to finish the PC case mod that i began some years ago, and i need a breathing (pulsing) LED circuit. I designed a very simple and very adaptive breathing LED circuit to use it for the power switch. The circuit uses a 555 timer chip and two transistor amplifiers, and has different adjustments for the fade-in and fade-out times.

• Category

  Science & Technology

[P1r4t3Pr0duct10n5]

great video!

i noticed on your web site you said to adjust R5 and R6 for the required voltage!

I dont know how but i want to run a 12v smd strip off this circuit.

im just starting out so sorry for the NOOB question!

what do i replace R5, R6 with?

if the 555 can Handel it im guessing!

[pcbheaven]

just use higher voltage to get max brightess

[Mike King]

Saw the TARDIS comment earlier, couldn't help but notice the bench is wood and painted blue :)

[pcbheaven]

it is chipboard with blue melamine foil :D

[Alvin Blando]

SIr , did youhave a circuit like for D.C. motor controller

[pcbheaven]

i have a PWM controller in my site

[Herry Rendra]

hey mister i have question ?.. how about to carry many led for fading ? example for 40 leds ?

[capdelibelula]

how can we make this circuit to drive a 1W LED?

[william fleete]

now you can make a model TARDIS :-) now you just need the sound effects for it

[MrSpaceman8774]

i like your accent it sound so,,so legit