Author Topic: New way to do sound reactive LEDs (Read 10838 times)

folklord36 · « **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......

VoX · « **Reply #1 on:** January 28, 2009, 01:47:20 AM »

Thats crazy. Awesome find and awesome work. This might get me back to modding.

ApheX · « **Reply #2 on:** January 28, 2009, 01:50:30 AM »

Dude, very good looking led mod. Looking forward to seeing the Tut.

tripsalot · « **Reply #3 on:** January 28, 2009, 01:58:05 AM »

that is cool,good job

ra1n · « **Reply #4 on:** January 28, 2009, 04:53:55 AM »

cool waiting on the tut

are those UV leds where did you get them?

thetanktheory · « **Reply #5 on:** January 28, 2009, 08:00:36 AM »

That's really good stuff man. cheapest reactive LED mod i've seen yet.

folklord36 · « **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.

folklord36 · « **Reply #7 on:** January 28, 2009, 04:58:46 PM »

https://www.acidmods.com/forum/index.php?topic=27307.0

TUT posted!

j.s2ghetto · « **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

folklord36 · « **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?

RoBot1ks · « **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

j.s2ghetto · « **Reply #11 on:** January 28, 2009, 06:01:40 PM »

Quote from: RoBot1ks 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

Hopefully this becomes the OFFICIAL SR led way so we can throw the crappy LM386 way out the window

Quote from: folklord36 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?

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

RoBot1ks · « **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

folklord36 · « **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.

RoBot1ks · « **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

j.s2ghetto · « **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

RoBot1ks · « **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

folklord36 · « **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?

j.s2ghetto · « **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

Quote from: folklord36 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?

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

RoBot1ks · « **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)

bustinthejustin · « **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

folklord36 · « **Reply #21 on:** January 28, 2009, 08:56:54 PM »

Ya im sure mouser or any online shop will have em just look around

bustinthejustin · « **Reply #22 on:** January 28, 2009, 09:06:13 PM »

I found some on ebay but they have an extra 2 at the end... Is there a difference? I have no clues what transistors do lmao

http://cgi.ebay.ca/30-2N2222A-NPN-Transistors-2N-2222A-2N2222-2N-2222_W0QQitemZ150319641391QQcmdZViewItemQQptZBI_Electronic_Components?hash=item150319641391&_trksid=p3286.c0.m14&_trkparms=72%3A1215|66%3A4|65%3A12|39%3A1|240%3A1318

folklord36 · « **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.

bustinthejustin · « **Reply #24 on:** January 28, 2009, 09:18:31 PM »

Alright thanks

moeiscool · « **Reply #25 on:** February 03, 2009, 06:38:18 PM »

i get those transistor things 5 for 1 dollar

bustinthejustin · « **Reply #26 on:** February 03, 2009, 07:42:18 PM »

Hmm I just realised - you can't use wifi switch for this can you...

GhoSt · « **Reply #27 on:** February 03, 2009, 08:10:59 PM »

Quote from: bustinthejustin on February 03, 2009, 07:42:18 PM

Hmm I just realised - you can't use wifi switch for this can you...

no because the wifi switch is a ground.

bustinthejustin · « **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?

GhoSt · « **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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Author Topic: New way to do sound reactive LEDs (Read 10838 times)