555 Breathing (Pulsing) LED Circuit

Link to page: http://www.pcbheaven.com/circuitpages/555_Breathing_Pulsing_LED

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

Tags:

• DIY
• electronic
• circuit
• Do-It-Yourself
• schematic
• diagram
• PCB
• led
• fade
• fading
• LEDs
• light
• controller
• pwm
• breath
• breating
• breathing
• 555
• timer
• pulsing

[noxvin7]

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

[pcbheaven]

@noxvin7 i have a PWM controller in my site

[TheT2eL]

Fantastic Video, sir. Trying it out now! Any advice to make it more like a heart beat?

[pcbheaven]

@TheT2eL adjust the fade-in and fade out to the heart beat rate that you want, and then you want to change the resistor of the first transistor amplifier (4K7) to increase the time between each pulse.

[Kankki1]

Yay, a new video! :D

[pcbheaven]

@Kankki1 :D my pc was dead for like 3 weeks... But now it works better than before!

[MrSpaceman8774]

i like your accent it sound so,,so legit

[tamsanh]

great! was just looking for a simple 555 timer project to play with

[RavenRof]

AWESOME!!!!!!!!! I wanted this circuit so bad ;D

I love you!

[Glassakis]

Very nice!