Author Topic: Sound Reactive LED Mod (Read 157202 times)

bncplix · « **Reply #210 on:** June 07, 2007, 05:29:00 PM »

i can get smd audio amplifiers (like the ones t3kn1k4l was showing) for about 22 cents each, not entirely sure if they are correct

Heres the info for them:
"Low Power Dual Operational Amplifiers
8 Pin Surface Mount

DESCRIPTION:
The LM2904 consists of two independent high gaininternally frequency-compensated operational amplifiers internallyfrequency-compensated operational amplifiers designed specificallyto operate from a single power supply over a wide range of voltages.Operation from dual power supplies is also possible and the lowpower supply current drain is independent of the magnitude of thepower supply voltage.

UNIQUE FEATURES:
In the linear mode the input common-mode voltage range includesground and the output voltage can also swing to includes groundand the output voltage can also swing to ground even thoughoperated from only a single power supply voltage. The unity gaincross frequency is temperature-compensated. The input bias currentis also temperature-compensated.

Manufactured by: Philips
Part Number: LM2904D

pic:

wrcsti · « **Reply #211 on:** June 10, 2007, 11:05:24 PM »

wow, that ooks a lot like a fet for an rc car. i might just say thats what it is if i hadnt ben in this site ever.

XeonXR6 · « **Reply #212 on:** June 11, 2007, 03:29:48 PM »

Had this video on my pc for some time, never uploaded it til yesterday... :-)

Shows you can use the LED's directly attached to the speaker.

http://www.youtube.com/watch?v=noMP8r-NIDc

zal · « **Reply #213 on:** June 13, 2007, 08:40:11 PM »

heard that u can skip the 30k and 191k resistors by connecting ithe ic to the headphones jack?is it true? can anyboby please give me the diagram 4 it...bcoz i cant find the 191k resistor anywhere!!!

p/s: nice sig cyber!!!

psp339 · « **Reply #214 on:** June 13, 2007, 08:48:47 PM »

191kohm resistor can be bought here
http://www.opamp-electronics.com/~opamp/catalog/product_info.php?products_id=810
bncplix gave me the link

zal · « **Reply #215 on:** June 13, 2007, 08:55:08 PM »

it would tahe 4ever to get it....im in malaysia....
so any of u guys kmow how to skip the resistors and connect the wires to the headphone jack...please help...

robin1989:- please dont say hehe, huhu and haha constantly

zal · « **Reply #216 on:** June 14, 2007, 12:07:57 AM »

got it!!!!

yhanks anyway guys!!

(didnt read 1st!!)

robin1989:- please dont say hehe, huhu and haha constantly

nismo300zx · « **Reply #217 on:** June 27, 2007, 05:35:33 AM »

that video about hooking up the leds direct to the speaker is great. i had tried this mod out and for some reason i cant get the led to pulse, it just stays lit. would i need more resistance? or what am i doing wrong? i do have some SMD leds and a few regular 5mm ones. ill poke around and see what i come up with, but if anyone knows let me know.

zal · « **Reply #218 on:** June 27, 2007, 06:16:52 AM »

ive done the direct conn withthe spk with oneof my psp,it worked furrfectly!!

hered the clip
[youtube=425,350]RmI-2vqs8J0[/youtube]
the light will be dim n always on,but it react to the sound!!

SYSTEM aka (Cyberpyrot) · « **Reply #219 on:** June 27, 2007, 06:23:37 AM »

very nice did you have any trouble with the chip?

zal · « **Reply #220 on:** June 27, 2007, 06:53:18 AM »

Quote from: cyberpyrot on June 27, 2007, 06:23:37 AM

very nice did you have any trouble with the chip?

nope, no prob with the chip,(did at 1st...lolz) me got 2 psp, one i use the chip and the white one i use direct conection (without the chip) and both works,
note:the one with the chip lights only when theres sound and the one with the direct connection has a dim light and react to the sound,as shown in the clip,
heres the clip(this one with the amp ic)
[youtube=425,350]0vqpY6E00Ic[/youtube]

nismo300zx · « **Reply #221 on:** June 28, 2007, 04:31:40 AM »

very nice!! what leds are you using? and would you have a pictures of the installs?

zal · « **Reply #222 on:** June 28, 2007, 04:38:35 AM »

Quote from: nismo300zx on June 28, 2007, 04:31:40 AM

very nice!! what leds are you using? and would you have a pictures of the installs?

i use super blue 0603 leds (correct me if im wrong about the led code...)
dun have the install pics because i mod all my psp at work....LOLZ!!

SplinterDs · « **Reply #223 on:** June 28, 2007, 10:41:24 PM »

does each led need there own SMT LM386 or can i connect both leds to 1?

jrfhoutx · « **Reply #224 on:** June 29, 2007, 05:45:30 AM »

Quote from: SplinterDs on June 28, 2007, 10:41:24 PM

does each led need there own SMT LM386 or can i connect both leds to 1?

you can connect almost as many LEDs as you want to the chip. the only reason you would need a second chip would be to arrange the mod in stereo (ie. two LEDs, one in sync with the left stereo channel and one in sync with the right stereo channel). one chip will be fine for both LEDs...

Loser777 · « **Reply #225 on:** June 29, 2007, 11:50:29 AM »

Mine is almost done, but I need to get my LCD connector fixed which means a new one has to be soldered on... I only have one LED on now because one of them fell on the floor >< and they are impossible to find.
[youtube=425,350]ydpCWgCpges[/youtube]
http://youtube.com/watch?v=ydpCWgCpges&mode=user&search=

SplinterDs · « **Reply #226 on:** June 29, 2007, 02:59:07 PM »

Quote from: jrfhoutx on June 29, 2007, 05:45:30 AM

you can connect almost as many LEDs as you want to the chip. the only reason you would need a second chip would be to arrange the mod in stereo (ie. two LEDs, one in sync with the left stereo channel and one in sync with the right stereo channel). one chip will be fine for both LEDs...

thanks

zal · « **Reply #227 on:** June 30, 2007, 09:32:41 AM »

Quote from: Loser777 on June 29, 2007, 11:50:29 AM

Mine is almost done, but I need to get my LCD connector fixed which means a new one has to be soldered on... I only have one LED on now because one of them fell on the floor >< and they are impossible to find.
ya!!! thats w i always carry xtra 5 with me when i mod!!
Quote from: Desertman on June 30, 2007, 07:20:44 AM
I get my chip's I will do them in my triggers and beneath my buttons with a clear case!
all the best!!! and dont 4 get to spare xxtra leds in case u drop them!!!

SplinterDs · « **Reply #228 on:** June 30, 2007, 03:27:09 PM »

were are the leds connected to on this mod https://www.acidmods.com/Wiki/tiki-index.php?page=PSP%20Sound%20Mod

monkeyking24 · « **Reply #229 on:** July 02, 2007, 08:21:46 AM »

Quote from: zal on June 27, 2007, 06:16:52 AM

ive done the direct conn withthe spk with oneof my psp,it worked furrfectly!!
hered the clip
[youtube=425,350]RmI-2vqs8J0[/youtube]
the light will be dim n always on,but it react to the sound!!

So i did not knew that u could connect the leds directly to the speakers it gives a better job i think ur mod is much better than others cause u still have led lights up normally without sound and when sound they react

thats so COOL i will try it this Saturday

zal · « **Reply #230 on:** July 02, 2007, 08:45:04 AM »

monkeyking24.....
good luck!!!!

all the best bro!!

monkeyking24 · « **Reply #231 on:** July 02, 2007, 08:50:41 AM »

Quote from: zal on July 02, 2007, 08:45:04 AM

monkeyking24.....
good luck!!!!
all the best bro!!

thx

osole · « **Reply #232 on:** July 02, 2007, 02:53:57 PM »

My "new" stereo MOD with Low Power Dual Operational Amplifiers LM358

<a href="http://www.dailymotion.com/swf/6GnHMvjEhpc99gdxe" target="_blank" rel="noopener noreferrer" class="bbc_link bbc_flash_disabled new_win">http://www.dailymotion.com/swf/6GnHMvjEhpc99gdxe</a>

SYSTEM aka (Cyberpyrot) · « **Reply #233 on:** July 02, 2007, 06:44:18 PM »

That looks nice.. keep up the good work

zal · « **Reply #234 on:** July 02, 2007, 07:57:26 PM »

great job!!!

nice stereo effect!!

gbodiford · « **Reply #235 on:** July 13, 2007, 07:17:22 AM »

thats sick man!
i like the green XD

Takahashi · « **Reply #236 on:** July 13, 2007, 09:30:32 AM »

That looks really tight. Love the dual channel and hold switch

Dracrius · « **Reply #237 on:** August 03, 2007, 10:54:49 PM »

Im about to try this and am wondering if I wire it all up for stereo internal speakers could I then run wires from the Audio Amplifier ICs' input pins to the earphone jack to make it so I get the sound reaction with or with out earphones?

zal · « **Reply #238 on:** August 03, 2007, 11:48:03 PM »

ermm... maybe it would work.... didnt tried it...

Dracrius · « **Reply #239 on:** August 04, 2007, 12:20:24 AM »

srry are you saying you have tried and it didnt work or what was that last part???

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Author Topic: Sound Reactive LED Mod (Read 157202 times)