Author Topic: New way to do sound reactive LEDs  (Read 10815 times)

Offline folklord36

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New way to do sound reactive LEDs
« on: January 28, 2009, 01:40:59 AM »
Hey guys its 4:30 Am and I just perfected the new way to do sound reactive LEDs useing a single 2n222 NPN transistor you can find at any radioshack. It is slightly dimmer than the LM386 but it reacts 100X better and the LEDs are only verry slightly on when there is no sound.

Heres a video of it in action




http://www.youtube.com/watch?v=eOfRjklm0_E












I will release a TUT tomarrow hopefully this can get me my R&D position back? Let me know admins......
« Last Edit: February 10, 2009, 03:20:38 PM by folklord36 »

Offline VoX

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Re: New way to do sound reactive LEDs
« Reply #1 on: January 28, 2009, 01:47:20 AM »
Thats crazy. Awesome find and awesome work. This might get me back to modding.

Offline ApheX

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Re: New way to do sound reactive LEDs
« Reply #2 on: January 28, 2009, 01:50:30 AM »
Dude, very good looking led mod. Looking forward to seeing the Tut.

Offline tripsalot

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Re: New way to do sound reactive LEDs
« Reply #3 on: January 28, 2009, 01:58:05 AM »
that is cool,good job

Offline ra1n

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Re: New way to do sound reactive LEDs
« Reply #4 on: January 28, 2009, 04:53:55 AM »
cool waiting on the tut :D

are those UV leds where did you get them?

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Offline thetanktheory

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Re: New way to do sound reactive LEDs
« Reply #5 on: January 28, 2009, 08:00:36 AM »
That's really good stuff man. cheapest reactive LED mod i've seen yet.

Offline folklord36

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Re: New way to do sound reactive LEDs
« Reply #6 on: January 28, 2009, 08:05:32 AM »
http://www.phenoptix.co.uk/URLrewrite.asp?404;http://www.phenoptix.co.uk:80/UV_PURPLE_SMD_0603_LED_p/smd-uv-0603-100.htm 
Thats where I got these they are brighter but this makes them a lil dimmer.

Yes all that is needed is a 2n2222 NPN transistor and a single 100 ohm resistor its cheaper more, more efficent, more responsive and has less soldering required. I must note though that I havent figured how to make them turn off with WiFi switch ATM you must add another switch some where to cut power off and on.

Offline folklord36

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Re: New way to do sound reactive LEDs
« Reply #7 on: January 28, 2009, 04:58:46 PM »

Offline j.s2ghetto

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Re: New way to do sound reactive LEDs
« Reply #8 on: January 28, 2009, 05:22:11 PM »
nice job man
I like ur case lol (inside joke)
and u did the exact same thing i did but u used the 5v and i used the 3.6v i think they look the same tho but nice work

ooooo ya and i did it off the amp that might make a diff or not

thank u P3nnywise for the sig
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Offline folklord36

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Re: New way to do sound reactive LEDs
« Reply #9 on: January 28, 2009, 05:53:58 PM »
Ya thanks man I love the case and trim it just looks so clean!


The first time I did it I ran it off an amp too and this time it is a lil different so ya it dose make a lil bit of a difference.

witch 3.6v spot did you use?

Offline RoBot1ks

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Re: New way to do sound reactive LEDs
« Reply #10 on: January 28, 2009, 05:55:17 PM »
Nice psp dude.
I was trying to do some research on transistors but I didn't find any useful info on how they work. I will do more research later
The trasistor looks way better than lm386

Offline j.s2ghetto

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Re: New way to do sound reactive LEDs
« Reply #11 on: January 28, 2009, 06:01:40 PM »
Nice psp dude.
I was trying to do some research on transistors but I didn't find any useful info on how they work. I will do more research later
The trasistor looks way better than lm386
Hopefully this becomes the OFFICIAL SR led way so we can throw the crappy LM386 way out the window


Ya thanks man I love the case and trim it just looks so clean!


The first time I did it I ran it off an amp too and this time it is a lil different so ya it dose make a lil bit of a difference.

witch 3.6v spot did you use?

i used the point on the connector that goes to the battery only one i found

thank u P3nnywise for the sig
"See you have to understand the difference. The difference between me and you is to you, this is your job. To me, this is my life. The club; that's my job. The mall; that's my job. Your neighborhood; that's my job. This studio; this is my life. This is what I do better than anything."

Offline RoBot1ks

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Re: New way to do sound reactive LEDs
« Reply #12 on: January 28, 2009, 06:04:24 PM »
I will probably incorporate the transistor in all the SR mods I do from now on. I fried my first mobo w/ the lm386 when i was a n00b

Offline folklord36

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Re: New way to do sound reactive LEDs
« Reply #13 on: January 28, 2009, 06:05:35 PM »
https://www.acidmods.com/forum/index.php?topic=27307.0


I posted a TUT its not official yet but I need help what should I add or remove? Any tips as I just posted my first two TUTs and im not sure what I should tweak on them.

Offline RoBot1ks

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Re: New way to do sound reactive LEDs
« Reply #14 on: January 28, 2009, 06:08:26 PM »
It looks fairly easy to understand to me
I'm pretty sure that everyone will figure out that the emitter leg is the negative for the led

Offline j.s2ghetto

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Re: New way to do sound reactive LEDs
« Reply #15 on: January 28, 2009, 06:17:55 PM »
agreed if they can't figure that out and they can wit LM386 there is a prob

thank u P3nnywise for the sig
"See you have to understand the difference. The difference between me and you is to you, this is your job. To me, this is my life. The club; that's my job. The mall; that's my job. Your neighborhood; that's my job. This studio; this is my life. This is what I do better than anything."

Offline RoBot1ks

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Re: New way to do sound reactive LEDs
« Reply #16 on: January 28, 2009, 06:20:04 PM »
lol
I still can't figure out how I fried that mobo. Maybe cause I soldered wires for the speaker - and + to the actual speaker terminal and wired the 5v to something I shouldn't  have.

As far as the tutorial goes, It looks pretty good, ppl will understand. No need to worry

Offline folklord36

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Re: New way to do sound reactive LEDs
« Reply #17 on: January 28, 2009, 06:22:36 PM »
Hehe I just labeled the negative and positive on the LED to make sure there is no confusion how's that lol?

Offline j.s2ghetto

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Re: New way to do sound reactive LEDs
« Reply #18 on: January 28, 2009, 06:23:51 PM »
i am pretty sure it was a nooby mistake everyone makes them i just did yesterday lol  but i fixed it
so don't feel to bad

Hehe I just labeled the negative and positive on the LED to make sure there is no confusion how's that lol?

perfect now no one will have to ask that question like a milllion times

thank u P3nnywise for the sig
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Offline RoBot1ks

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Re: New way to do sound reactive LEDs
« Reply #19 on: January 28, 2009, 06:28:50 PM »
Yes they will. They will see this topic and do it deliberately lol
Once I pick up the right transistor, I will try it
I may have one in my pile of electronic parts (in a shoe box)

Offline bustinthejustin

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Re: New way to do sound reactive LEDs
« Reply #20 on: January 28, 2009, 08:51:21 PM »
AWESOME! Any idea if you could get these off ebay or mouser or something? I live in Canada :(

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Offline folklord36

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Re: New way to do sound reactive LEDs
« Reply #21 on: January 28, 2009, 08:56:54 PM »
Ya im sure mouser or any online shop will have em just look around

Offline bustinthejustin

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Offline folklord36

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Re: New way to do sound reactive LEDs
« Reply #23 on: January 28, 2009, 09:17:17 PM »
Ya same thing just like LM386n-1 and all that crap, different company's make the same components with slightly different names.

Offline bustinthejustin

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Re: New way to do sound reactive LEDs
« Reply #24 on: January 28, 2009, 09:18:31 PM »
Alright thanks :)

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Offline moeiscool

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Re: New way to do sound reactive LEDs
« Reply #25 on: February 03, 2009, 06:38:18 PM »
i get those transistor things 5 for 1 dollar :)
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Offline bustinthejustin

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Re: New way to do sound reactive LEDs
« Reply #26 on: February 03, 2009, 07:42:18 PM »
Hmm I just realised - you can't use wifi switch for this can you...

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Re: New way to do sound reactive LEDs
« Reply #27 on: February 03, 2009, 08:10:59 PM »
Hmm I just realised - you can't use wifi switch for this can you...

no because the wifi switch is a ground.
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Offline bustinthejustin

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Re: New way to do sound reactive LEDs
« Reply #28 on: February 03, 2009, 08:14:01 PM »
Damn. There was a site posted to buy miniature switches... Any idea what it was?

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Re: New way to do sound reactive LEDs
« Reply #29 on: February 03, 2009, 09:26:32 PM »
there are plenty, for example farnell, or im sure this canadian version of rs components whud http://www.alliedelec.com/
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Re: New way to do sound reactive LEDs
« Reply #30 on: February 04, 2009, 02:27:22 PM »
is there a way to use em with the hold switch?

Offline bustinthejustin

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Re: New way to do sound reactive LEDs
« Reply #31 on: February 04, 2009, 03:46:45 PM »
Not yet. Somebody will probably think of something though.

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Offline folklord36

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Re: New way to do sound reactive LEDs
« Reply #32 on: February 04, 2009, 10:08:01 PM »
Ya the hold switch will work just cut both traces and on the side that goes to switch scratch them and solder power to it and then to ur LED. Using hold switch as the power switch in the diagram, any switch will work as long as its turning the power on to the LEDs not grounding it as the WIFI switch.

Offline bustinthejustin

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Re: New way to do sound reactive LEDs
« Reply #33 on: February 05, 2009, 11:43:31 AM »
Diagrams pl0x? I don't get it :( lol

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Offline folklord36

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Re: New way to do sound reactive LEDs
« Reply #34 on: February 05, 2009, 03:44:57 PM »
cant really draw a siagram for a switch thats pointless basicly you are cutting traces to deactivate the hold function then solder to hold switch as a power switch

Offline bustinthejustin

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Re: New way to do sound reactive LEDs
« Reply #35 on: February 05, 2009, 04:44:31 PM »
I thought hold switch is ground? *counfused*

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Offline Alien_X

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Re: New way to do sound reactive LEDs
« Reply #36 on: February 06, 2009, 10:26:55 AM »
Basically what I already posted a while ago, isolate it from the ground.

Easier to use a PIC though ;)

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Offline Blazinkaos

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Re: New way to do sound reactive LEDs
« Reply #37 on: February 06, 2009, 10:46:56 AM »
hey the video is longer there  :sadno:.

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Re: New way to do sound reactive LEDs
« Reply #38 on: February 06, 2009, 11:40:53 AM »
The youtube link is there

Offline l0rdnic0

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Re: New way to do sound reactive LEDs
« Reply #39 on: February 06, 2009, 06:50:28 PM »
Basically what I already posted a while ago, isolate it from the ground.

Easier to use a PIC though ;)
I agree with you there... esp if it (the pic) does more then one thing.. Oh wait.. I did that already, mode select I called it right??? :P now If Mike would sell that in the shop I would make money for modding again :P


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Re: New way to do sound reactive LEDs
« Reply #40 on: February 06, 2009, 09:35:22 PM »
umm in ur tut picture i think you got the positive and the negitive of the speaker around the wrong way, I tried this yesterday.
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Offline bustinthejustin

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Re: New way to do sound reactive LEDs
« Reply #41 on: February 06, 2009, 09:38:42 PM »
It looks right to me *shrug* but I know nothing lol

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Re: New way to do sound reactive LEDs
« Reply #42 on: February 06, 2009, 11:14:28 PM »
It looks right to me *shrug* but I know nothing lol

no im pretty sure its not, my dad sez he doesn't understand how it would work the other way and I trust his electronical engineering word.
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Offline jakeykun

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Re: New way to do sound reactive LEDs
« Reply #43 on: February 07, 2009, 06:09:04 PM »
How would i connect this to the wifi switch?

Offline bustinthejustin

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Re: New way to do sound reactive LEDs
« Reply #44 on: February 07, 2009, 09:26:11 PM »
You can't...

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Offline jakeykun

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Re: New way to do sound reactive LEDs
« Reply #45 on: February 07, 2009, 10:51:19 PM »
I thought so lol. I tried like 3 different ways that i thought could possibly work. I should of just picked up a switch while i was at Radio shack* or something
« Last Edit: February 08, 2009, 12:45:30 AM by jakeykun »

Offline bustinthejustin

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Re: New way to do sound reactive LEDs
« Reply #46 on: February 07, 2009, 10:52:53 PM »
Yeah. You need an extra switch or use hold switch, but I have no clue how to do that. Somewhat explained above, but I don't get it haha =\

Dip switches are nice for this though. Good and small.

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Offline jakeykun

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Re: New way to do sound reactive LEDs
« Reply #47 on: February 08, 2009, 01:46:08 AM »
Alright i think i understand it!!!!!

Im thinking that the purple line i made extra could possibly be the hold switch trace,



also maybe those 4 points connecting to the power switch underneath the powerboard could be the trace points.
« Last Edit: February 08, 2009, 01:48:54 AM by jakeykun »

Offline Blazinkaos

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Re: New way to do sound reactive LEDs
« Reply #48 on: February 09, 2009, 08:40:33 AM »
The youtube link is there
yea i know but it says its been removed so idk whats the problem. what ever.

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