555 Timer Throbbing/Fading LED without Programming

[Mikaru3000]

can I use 100pf 50V?

[alexizhernan]

the schematic given doesnt show where the power supply goes, can anyone tell me where it goes? thanks

[burnettprovideo]

@alexizhernan Pin 1 is ground and pin 8 is + voltage.

That was a major thing I overlooked when I created the schematic/pcb

[alexizhernan]

@burnettprovideo thank you

[MrStemkilla]

dose it just use a capacitor or is it able to power more leds?

[Epidemik8bit]

Yea can u send me

The schematics I would really appreciate it. Thanks a lot

[Prohl84]

Dude 555's are sweet! You can use pin 3 as an audio out also. That looks (sort of) like a triangle wave to me. Use a smaller cap between 3 and ground (1u-.1u) for audible frequencies.

Check out: falstad . com circuit

[turkish307]

The schematic link is dead... please can you post a new link.

[rbcustoms81]

Thats what I'm looking for........I need that effect for my terminator T-800 endeo skull display prop I build.........Led eyes fading in and out....did you ever post that schematic.......

[fireworkfreak100]

and where you wanna use it for? or just for the fun :)

[eatfrog]

soo, is the schematic up anywhere?

[CAPMADZ]

i have the schem..



[tonyquezada]

@CAPMADZ can u send me the schem.. to my e-mail??? :::: THANKS!

[bkanderson2659]

@Gorfickle: Do you still have the schematic for this? I'd like to build it as well.

[CAPMADZ]

@bkanderson2659 i have a couple

[Arjoonmoal]

pretty old thing since 1974

[Starbuckin]

@Arjoonmoal It's still a GREAT chip and much easier to work with than new surface mount chips. I use it all the time for everything from burglar alarms in cars and buildings to L.E.D. flashers. I bought about 100 of them from Unicorn Electronics for like $10! A LOT easier to use this chip instead of trying to make the same circuits using bipolar transistors (roll eyes)......

[Arjoonmoal]

@Starbuckin of course see 555 circuits contest in hacked gadgets. so cool. however you can't deny that this chip technology is a bit old. and hell yea how people use it are very new. i also made energy savers and security automatic lights with it

[yearofrolling]

I find the Instructables pages very annoying.

Any chance you'e still got that schem or layout hangin' around?

[100roberthenry]

have you the schematic for this?...i m really interested in it, i can get my led to flash but not dim...thanks.

[TheAL3xGR]

@100roberthenry Use capacitor with larger capacity I think will solve your problem.Try it.

[100roberthenry]

@TheAL3xGR

sorted it thanks.....

[TheAL3xGR]

@100roberthenry You tested it?

[100roberthenry]

@TheAL3xGR

yeah got it working fine...using it for a guitar pedal im designing...slightly different circuit...

[TroyOi]

Thanks! I did this a long time ago with a microcontroller, using pulse-width modulation to get the same effect, but I was never happy with it -- even though the difference in each brightness level was very small, it could still be discerned with the naked eye. I wanted the pulsating to be completely "smooth". I haven't looked at your schematic yet, but I assume that's the case here -- ie, that the changes in brightness are due to the charging & decay of an RC circuit.. Is that correct?

[happygamestvfun1]

pshhh IC's are foor noobs alll digital electrs r for nubs im a real man with my caps and trannys to make a rela anolog hardstyle circuit mofos! me FTW!

[coolhislop]

what if it fades in and out only once

[kennydude19]

links down

[BraciaB]

What do I need to change in order to run it on 12V?

[t3buda]

Nice One .... Thank U so much for your help ... This is what I need ... Easy and effective. And your schematic is very useful. BTW: What values I will need if I want connect this with 2,4 V battery :D Is that possible?

[burnettprovideo]

Do you mean 2 -4volt batteries? If so, you shouldn't need to do anything differently.

[Lokivoid]

Please not that circuit will only work 555C or CN, it will not work genaric NE555's however a simlary effect can be created useing a pnp transistor and capacitor useing the output of a astable ne555

[ronlan1984]

CAn you make it blink then fade out

[ronlan1984]

can u sent me the schematic

[pbjosh16]

GAY! LOL!

[Gorfickle]

Working on getting a schematic out. I'll post it shortly.

[opitical]

thanks

[what3is3that3]

when you do get it please send it to me

im desprate to get that schematic

[opitical]

please can you send me the scematics please that is amazing