Author Topic: Is this a correct led diagram for trigger mod? (Read 10133 times)

ojomow · « **on:** July 03, 2009, 03:12:56 PM »

Hey, I made a diagram that is direct contact and the volt source comes from the Powerboard.
Can anyone confirm is this diagram correct? Plus is 10-ohm resistor correct for x4 0603 Blue Leds?
-> Blue wire is positive
-> Red wire is negative

All resistors has to be solder to positive side? And is it correct 3.6V->Resistor->positive side LED

and the power board diagram

Some help please? Thank You.

RoBot1ks · « **Reply #1 on:** July 03, 2009, 03:24:00 PM »

You don't need resistors for blue leds. So just simply remove the resistor and you pretty much got it

ojomow · « **Reply #2 on:** July 03, 2009, 03:36:38 PM »

Is that because Blue 0603 is low volt compare to like the red one. Higher volt?

But wouldn't 4 blue led's running on 3.6 volt burn out and burn my board out
And when I solder the wires to the board, what should i cover the solder/copper wire so it doesn't create a short? Electric tape would be too big.

RoBot1ks · « **Reply #3 on:** July 03, 2009, 03:43:42 PM »

Even one blue led on 3.6 volts will not burn out. Well mine don't. Not sure where you got yours
If you strip the wire really short then you will not have to worry about shorts
Just try to strip the wire as short as possible

If you have any more questions contact me on msn or something

RoBot1ks@hotmail.com

ojomow · « **Reply #4 on:** July 03, 2009, 03:50:34 PM »

Oh ok thanks, I got mine of ebay.
Heres link http://cgi.ebay.com/5-x-ULTRA-BRIGHT-BLUE-0603-SMD-LEDs-SMT-LED-140mcd_W0QQitemZ160341309175QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item25551636f7&_trksid=p3286.c0.m14&_trkparms=65%3A1|66%3A2|39%3A1|293%3A2|294%3A50

Thanks for your help . Did you solder yours to the power board? If so how many leds? I might do 6,but that going to require wire management in tight spaces.

RoBot1ks · « **Reply #5 on:** July 03, 2009, 03:54:31 PM »

Ok those work
These are the ones I get
http://www.unique-leds.com/index.php?target=products&product_id=1837

I usually do sound reactive in phats, but I have used the powerboard many times.
The way your diagram is wired is two continuous strands of wire that powers all the leds. If you were to do this, I would suggest taking your soldering iron and mashing it down on the wire where you are putting leds. It's faster than stripping the wire

If you are going to do a continuous length, you can use as many leds as you'd like

Edit:
I would actually recommend my blue leds to you. They will be much brighter than yours. Yours is only 140mcd

ojomow · « **Reply #6 on:** July 03, 2009, 04:02:33 PM »

Oh yeah it isn't that bright.
Good thing i bought the green 0603 600mcd

And I'm planning to the the LM386 sound reactive, but I wanted my trigger to always glow, so the spectators can look.

Can you clarify "mashing the wire onto the led".
I'm suppose to tin the led contacts, and wire and then place it and lineup, then I use the solder iron gun and heat it up and it should stick right?

RoBot1ks · « **Reply #7 on:** July 03, 2009, 04:42:34 PM »

No, lay the wire on a desk or something that you won't get in trouble for burning and take the iron and melt away the insulation where you want the leds until you get down to the wire. Then you can solder your leds

ojomow · « **Reply #8 on:** July 03, 2009, 04:47:45 PM »

Oh i was about to ask that, but couldn't explain.
So it be like a this (wire) ----U---- like you heat the wire till half of the side is insulated and the other is not?
LOL I never knew you can heat the wire and half of it melts to get to the copper wire. Thanks for your tip! because I was about to strip every piece to solder it... and it going to look a lot uglier.

RoBot1ks · « **Reply #9 on:** July 03, 2009, 04:57:28 PM »

If you do it carefully you may be able to get half the insulation to melt. But I melt all of it away so I can solder the leds easier from the other side

ojomow · « **Reply #10 on:** July 03, 2009, 05:56:04 PM »

Oh, thank you so much you help me a lot.
I just can't find a 191k and 30k-ohn resistor.
Where can I buy one or where did you get yours at?

RoBot1ks · « **Reply #11 on:** July 03, 2009, 06:06:36 PM »

I have plenty I can lend to you. I have 191k and you can use two of my 15k's to make 30k

If you are interested, PM me your address and I will send you some

Jumbo · « **Reply #12 on:** July 03, 2009, 06:11:13 PM »

I dont recomend taking out that 10 ohm. I might even up it. Its not safe to run leds at that power source with out one. They might work but they wont last as long as they should. Someone should start giving away right advice. It seems one r-tard says "u dunt need resistoroer lulz. >.>;;" they all believe him and start spreading the word.

ojomow · « **Reply #13 on:** July 03, 2009, 06:12:43 PM »

Wow you are nice.
S/H free? Im in the USA

Plus how do you hook up two 15k resistor?

Is it like -[15k]*JOINT*-[15k]-

Post Merge: July 03, 2009, 06:15:48 PM

Well I do know resistors are required for safety and longer lasting.
I will add one, doesn't really make the mod harder.
So um JUMBO. Can you find the appropriate resistor for me?

I have x4 blue 0603 leds.
To Robot: I would be thankful for you giving some resistors , I don't feel comfortable giving my address, I guess I'll find one in my local store.

RoBot1ks · « **Reply #14 on:** July 03, 2009, 06:16:43 PM »

Yes exactly like that. it doesn't matter which way the resistors face either
If you have like $1 in paypal or something that would be fine. But postage stamps are cheap anywayz

Jumbo · « **Reply #15 on:** July 03, 2009, 06:32:04 PM »

Quote from: ojomow on July 03, 2009, 06:12:43 PM

Wow you are nice.
S/H free? Im in the USA

Plus how do you hook up two 15k resistor?

Is it like -[15k]*JOINT*-[15k]-
Post Merge: July 03, 2009, 06:15:48 PM
Well I do know resistors are required for safety and longer lasting.
I will add one, doesn't really make the mod harder.
So um JUMBO. Can you find the appropriate resistor for me?

I have x4 blue 0603 leds.
To Robot: I would be thankful for you giving some resistors , I don't feel comfortable giving my address, I guess I'll find one in my local store.

I would do 10ish maybe a little higher. If you look on the data sheet of the leds you bought, the Forward Voltage max is 3.4 for your leds. And thats the MAX. You want it under that for longest time.

Ya thats how you would connect two 15k ohm resistors. You could always look online like ebay and find them for mad cheap in bulk. if you wanted id send them free seeing i have a couple hundred. lol.

Any other questions ask

RoBot1ks · « **Reply #16 on:** July 03, 2009, 06:33:50 PM »

Thx jumbo

ojomow · « **Reply #17 on:** July 03, 2009, 06:41:24 PM »

Oh alright, Jumbo so 10k ohm resistor would put my leds to run about 2-3volts right?
I think im going with the 10k or maybe 12k,15k

edit: Am I looking for 1/8 10k-ohm watt resistor? or any 10k will do

Jumbo · « **Reply #18 on:** July 03, 2009, 06:51:26 PM »

Quote from: ojomow on July 03, 2009, 06:41:24 PM

Oh alright, Jumbo so 10k ohm resistor would put my leds to run about 2-3volts right?
I think im going with the 10k or maybe 12k,15k

edit: Am I looking for 1/8 10k-ohm watt resistor? or any 10k will do

Not 10k!! 10ohm! :P

10k=10000 ohm. lol

ojomow · « **Reply #19 on:** July 03, 2009, 06:53:05 PM »

Oh haha my bad, you guys helped me a lot to prep my mod.
Thank You.

RoBot1ks · « **Reply #20 on:** July 03, 2009, 06:54:47 PM »

No problem. Sorry for trying to shorten the life of your led

Good luck w/ your mod

bustinthejustin · « **Reply #21 on:** July 04, 2009, 09:56:35 PM »

Quote from: ojomow on July 03, 2009, 06:41:24 PM

edit: Am I looking for 1/8 10k-ohm watt resistor? or any 10k will do

I'm pretty sure any will do with just 4 LEDs. But the smaller the fraction, the smaller the resistor. So if you're tight on space, get some 1/16 10-ohm resistors. I use 1/8 and they're small enough for pretty much all applications.

ojomow · « **Reply #22 on:** July 05, 2009, 05:50:11 PM »

Thanks, I just ordered 1/8th resistor.

Now i have to solder three 10k 1/8th resistor. It going to look ugly and long>.> Anyways I'm trying to start this mod before I leave for vacation.

Hey is 140mcd blue bright? I'm not sure.

bustinthejustin · « **Reply #23 on:** July 05, 2009, 05:55:04 PM »

MCD doesn't directly mean how bright it is... But it should be fine.

Also... 10 OHM!!! Not 10k OHM.... lol I thought Jumbo already explained that to you :P

RoBot1ks · « **Reply #24 on:** July 05, 2009, 06:00:23 PM »

Mcd is the luminous intensity. Exactly what brightness is.
I use blue leds with 380mcd. I believe I gave you a link earlier

Jumbo · « **Reply #25 on:** July 05, 2009, 06:04:25 PM »

Quote from: RoBot1ks on July 05, 2009, 06:00:23 PM

Mcd is the luminous intensity. Exactly what brightness is.
I use blue leds with 380mcd. I believe I gave you a link earlier

Its not much a difference. I had 70 MCD leds from mouser brighter than "400" mcd off ebay. You REALLY cant tell a difference.

@Bustin: hes using 3x 10K to make the 30K resistor

ojomow · « **Reply #26 on:** July 05, 2009, 06:04:25 PM »

No,but the LM386 Mod requires "191k ohm"

so therefore it "k" right?

Jumbo · « **Reply #27 on:** July 05, 2009, 06:07:24 PM »

Quote from: ojomow on July 05, 2009, 06:04:25 PM

No,but the LM386 Mod requires "191k ohm"

so therefore it "k" right?

The LM386 has a 30K and 191K ALWAYS. It lets off about 5 volts so you will need the resistor for the leds to 5 Volt.

ojomow · « **Reply #28 on:** July 05, 2009, 06:10:58 PM »

Jumbo the other guy said 10 ohm not 10k ohm.

But it is 10k ohm for the LM386 right?
I think he mixed up the LM386 and the chart above for non re-active led.

But I'm going to do the LM386 Mod not the direct contact.

RoBot1ks · « **Reply #29 on:** July 05, 2009, 06:13:48 PM »

Quote from: Jumbo on July 05, 2009, 06:04:25 PM

Its not much a difference. I had 70 MCD leds from mouser brighter than "400" mcd off ebay. You REALLY cant tell a difference.

kk
That's crazy

To ojomow: You need a 191k and a 30k on the lm386. You will need a 10ohm resistor on the output of the lm386 that leads to your leds

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Author Topic: Is this a correct led diagram for trigger mod? (Read 10133 times)