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**fayad555** · 12-20-2009, 01:05 AM

LED Tail Lamp done on HH Splendour

Thanx to abhijeet and sajjt for your help.
The Circuit board and the design
leds at the top for park lamp and the bottom ones are for brake lamp.

Brake lamp

Brake lamp close up

Park lamp(only one strip is working)

**sajjt** · 12-21-2009, 11:14 AM

Nice job fayad, u need to fine tune the design which is more suitable for ur bike and follow Abhis' tip, use a clear lens glass rather than the old multifaceted types. Not sure which one is urs I cant figure out from the pics. Keep it up man

**fayad555** · 12-21-2009, 12:20 PM

Originally posted by sajjt View Post

Nice job fayad, u need to fine tune the design which is more suitable for ur bike and follow Abhis' tip, use a clear lens glass rather than the old multifaceted types. Not sure which one is urs I cant figure out from the pics. Keep it up man

Thanx sajjt. Yes it is the old multifaceted type glass, the light from LED gets scattered,so you cannot know they are leds when viewed from some angles.
And in the PCB which i got, the points are such that you cannot place the leds close, like abhijeet did..i wasnt aware of that when i bought it..

**abhijeet080808** · 12-21-2009, 03:37 PM

Originally posted by 46wannabe View Post

Cool!
Next up why don't you try illuminated speedo needles?
IMHO, I think the lack of brightness from the stock backlight has invariably made the needles invisible.

It is actually bright enough. But yes, the needle can do with some brightness. Only, that I dont know where to get them from and if they can be fitted on my speedo.

@fayad - Congrats. You got it working. Just get a clear lens cover if possible.

Could not reply as I was offline!

**sajjt** · 12-21-2009, 04:08 PM

Abhi, is that Cap filter is a must for rectification?

**abhijeet080808** · 12-21-2009, 04:11 PM

Without it, the brightness of the LEDs seems to be a bit less. Actually, it flickers very fast.

So, I would say it is a must, but the value can be small though, like 10uF.

**sajjt** · 12-21-2009, 04:13 PM

Originally posted by abhijeet080808 View Post

Without it, the brightness of the LEDs seems to be a bit less. Actually, it flickers very fast.

So, I would say it is a must, but the value can be small though, like 10uF.

Thanks yar.

**fayad555** · 12-21-2009, 09:41 PM

Originally posted by abhijeet080808 View Post

@fayad - Congrats. You got it working. Just get a clear lens cover if possible.

Could not reply as I was offline!

i dont know whether i can get a clear lens cover. but i ll try it out. It would look better...

And one doubt. i connected the same led setup to my unicorn and it started glowing without even pulling the brake lever.
here is the pic, i havent even touched the bike..

**abhijeet080808** · 12-21-2009, 10:09 PM

I think the brake switch may be faulty. Have you checked that?

**fayad555** · 12-22-2009, 02:06 AM

Originally posted by abhijeet080808 View Post

I think the brake switch may be faulty. Have you checked that?

then why doesnt the bulb glow when i put it...

**abhijeet080808** · 12-22-2009, 11:23 AM

Originally posted by fayad555 View Post

then why doesnt the bulb glow when i put it...

Maybe some carbon have deposited there in the switch which allows only enough current for LEDs to pass but can not support a bulb.

**fayad555** · 12-22-2009, 05:43 PM

Originally posted by abhijeet080808 View Post

Maybe some carbon have deposited there in the switch which allows only enough current for LEDs to pass but can not support a bulb.

so i should open the switch gear to check that?

**abhijeet080808** · 12-22-2009, 09:35 PM

Check the connector from the switch wire to the rest of the bike wiring. Also, you can disconnect this and see if the LEDs are still glowing.

**zmint** · 12-24-2009, 03:58 PM

Abhi Brother,
You are a magnet to me. Step by step I am going to try all your projects.
I have saved and read all the pages in this thread and concluded that I should ask you first and then get my hands dirty.
Bro I am planing this LED project for my NV and HH Sup. Splendor.
Lets start with HH S. Splendor first.
Now please suggest :
LEDS mm - ?
Cap Value - ? (I want, my break light to glow bright but it should go off as soon as I lift my foot of the break [No slowly dimming]
Resistor Value - ? ( I notice 12 resistors in you actual circuit why so ?)

Now for some off topic advise.
1. What is the name of the software you use to make those cool looking circuit diagrams.
2. You have awesome soldering skills. Your soldering looks like embroidery to me. Can you suggest some good hardware to achieve such results. (I have only a simple soldering Iron)
3. And how do we remove those factory soldered components (like VRs) from PCBs without overheating them.

With regards
Zmint

**abhijeet080808** · 12-24-2009, 04:58 PM

Originally posted by zmint View Post

Abhi Brother,
You are a magnet to me. Step by step I am going to try all your projects.
I have saved and read all the pages in this thread and concluded that I should ask you first and then get my hands dirty.

Thank you!

Bro I am planing this LED project for my NV and HH Sup. Splendor.
Lets start with HH S. Splendor first.
Now please suggest :
LEDS mm - ?

I used 8mm LEDs. I liked the look better. You can use anything you wish. Doesn't matter much. And if you want the LED look, clear lens cover are necessary.

Cap Value - ? (I want, by break light to glow bright but it should go off as soon as I lift my foot of the break [No slowly dimming]

I guess something about 47uF should do the job. And, brake lights are already on DC, so no need any diodes/caps there.

Resistor Value - ? ( I notice 12 resistors in you actual circuit why so ?)

We need 3V per LED. So, in case of a 12V supply, we can use max 4 LEDs in series. (4x3V = 12) Lower the number of LEDs used in a single series, the better. But, we need a resistor for each such series, So, it can be cumbersome if too many series are formed. Now resistor value depends on the number of LEDs used per series. See this. Set supply voltage at 14V, LED current at 20mA, LED voltage at 3V and calculate.

Now for some off topic advise.
1. What is the name of the software you use to make those cool looking circuit diagrams.

I used photoshop for this diagram! If you want a schematic maker, try Multisim, or ISIS from Proteus.

2. You have awesome soldering skills. Your soldering looks like embroidery to me. Can you suggest some good hardware to achieve such results. (I have only a simple soldering Iron)

Thanks! I too use just a simple soldering iron! Use soldering paste as needed. And keep practicing soldering for some time, you will pick up the skils. It helps to have a steady hand.

3. And how do we remove those factory soldered components (like VRs) from PCBs without overheating them.

I use a soldering iron. I apply molten solder such that it is over all the pins simultaneously and pull out the component. Some specialized wires are available to remove old solder. But, have never used them.

With regards
Zmint

My answers in bold.

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Retrofitted LEDs on tailight of my P150 Classic

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