Introduction: DIY Flashing LED

Picture of DIY Flashing LED

Hi to all Today's the instructable is about the FLASHING of an LED which can be

used in so many different application exp decorating , indication etc

This is very simple instructable anybody can do it.

D I Y IN 4 MINUTE COMPLETE VIDEO GUIDE STEP BY STEP

I use a 555 timer ic to generate frequency which can be tuned to

different levels of frequency by using the potentiometer

A buzzer used is optional here

PNP / NPN transistor can be connected at the output if we need to derived a bulk of LED OR Motor etc

Different electrolytic capacitors can be used to set the desired delays at

output i tested different electrolytic Capacitors in the last minutes in my video

PLAY VIDEO

Step 1: Hardware Required

Picture of Hardware Required

All the hardware details including circuit diagram are given in the video description

Step 2: Working

Picture of Working

CHECK OUT THIS AMAZING LED FLASHER IN VIDEO


Comments

miraheng (author)2016-06-21

hai! can u try do it with piezo? and how did u know what to use to light a bulb (like resistor etc? thanks!

afzalrehmani (author)miraheng2016-06-21

hi miraheng you can use a piezo
it will work the same

for lighting a bulb at the output you need to connect a bulb 6v relay at output but this is good for lower frequency switching

but for faster switching at output we need to do something else ...like using power transistors etc

Wallythecat (author)2016-06-20

First off, thank you. A well laid out Instructable. But, where is the PNP transistor you mention in the initial description? And I'm not seeing it in the "Hardware Required" list. I'm really new to this and last week ordered all the goodies to put something like this together, so this is timely. I don't see what I think a PNP transistor would look like used anywhere in your circuit, either.

afzalrehmani (author)Wallythecat2016-06-20

Thanks for letting me know

PNP transistor is optional here
if we need to derived a big load rather than LED .like motors OR many LEDs .
But for a single led it's optional here .

I forget to mention in my post
but don't worry it will be updated soon.

Wallythecat (author)afzalrehmani2016-06-20

If you could possibly show both circuits, one with the transistor and one without, I would appreciate that. I'm getting so that I kind of understand the workings of the components, but their practical application is difficult. Thanks, again.

afzalrehmani (author)Wallythecat2016-06-21

these are two circuit one with NPN transistor and other without transistor
you can use any small gain transistors like
2n3904
2n2222
bc547
these are very common

if you feel any difficulty please ask
thanks

About This Instructable

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Bio: Studying Electrical Engineering.;-)
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