| Posted: 09 Mar 2010 19:12 | [?] |
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I just have them placed into the perfboard. Today I'm gonna run to radio shack and pick up some resistors so if all goes well I'll have it all soldered together today. I borrowed the design from xblights. It will have integrated turn signals and with the 2 strips of running lights. If anyone wants some of the info I would be glad to share.
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| Posted: 09 Mar 2010 19:32 | [?] |
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Quote: Please do. ...I would be glad to share.  
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| Posted: 09 Mar 2010 20:51 | [?] |
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| Please Share, I would love to give this a try. | |
| Posted: 09 Mar 2010 21:09 | [?] |
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For anyone that wants to get a head start...here are the LED's that I ordered
Red LED's Yellow LED's I'll give an update after I get everything soldered together. |
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| Posted: 09 Mar 2010 21:15 | [?] |
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| Definitely interested! I've got a bunch of LEDs sitting at home in a bag. Just need the wiring schematic of how to use a PCB. | |
| Posted: 09 Mar 2010 21:25 | [?] |
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Quote:
For anyone that wants to get a head start...here are the LED's that I ordered Red LED's Yellow LED's I'll give an update after I get everything soldered together. how many of each did you use? |
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| Posted: 09 Mar 2010 22:12 | [?] |
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| I used 60 leds total. 18 Yellow and 42 red. I ordered a few extra just in case I broke a few in the process. Their shipping is very reasonable at $5 and it only took 2 days to get them. Pockets I'm not sure about the PCB. I used the perfboard as you can tell since it only costs 3 bucks at radioshack. I'm just trying to figure out the resistance that I need in order to make this work. I've figured out that the original voltage for the brake was .34A, running was 37mA, and .68A for each turn signal. I've calculated the amperage that I need to get across each circuit for the leds to work as well as the resistance that I need to have to accomplish this, do I need to take into consideration the amperage across the old bulbs? | |
| Posted: 09 Mar 2010 22:18 | [?] |
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| I've never worked with perfboard. How do you create the circuit? The only amperage you'll need to know is the one you're creating. The old bulbs had a higher resistance and draw. | |
| Posted: 09 Mar 2010 22:21 | [?] |
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| Ok thats what I thought but just wanted to make sure. I'm using solder to complete the circuits. I know its not the most ideal thing but it will work just fine. The only thing about the perf board is that you have to shave down the LED's a little to make them fit. It only took me around 30 mins to shave them all with a dremel. Would you be interested in the circuit that I've drawn up for my design? | |
| Posted: 10 Mar 2010 00:23 | [?] |
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| Definitely. What kind of iron are you using? My Weller is just about toast. | |
| Posted: 10 Mar 2010 03:37 | [?] |
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I believe that its called Veleman. It does the job just fine. I just went by and picked up the resistors and already have all the leds soldered together as well as a few of the resistors. I decided to get .32" wire and it seems to be working well. If it rains here again tomorrow I'll be finishing it up. If not then I'll be going back out and doing some more riding
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| Posted: 10 Mar 2010 03:52 | [?] |
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Sorry I forgot the schematic.
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| Posted: 10 Mar 2010 04:13 | [?] |
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| Btw is there anywhere else to buy the clear tail lens other than ASB? | |
| Posted: 10 Mar 2010 04:27 | [?] |
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keep us updated it seems like its gonna be great
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| Posted: 10 Mar 2010 05:31 | [?] |
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oh my goodness, that is going to be a lot of soldering!
Please, don't spare with the pics or techie stuff!!! |
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| Posted: 10 Mar 2010 05:33 | [?] |
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Btw the software that I'm using is called Tiny Cad...its free and does an alright job. I got a PM about the quality of the picture so I decided to load it to photobucket. Let me know if there is any other info that you guys would like to know. Also, I'm using a 660 ohms for 6 leds, 550 for 5, and 440 for 4; also for the running lights which are 6 leds i'm using a 3.3k ohm.
A better pic of the schematic |
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| Posted: 10 Mar 2010 16:50 | [?] |
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Here are the resistors that I picked up. I'm hoping to be done with it tonight but dang I've already made 130 solder points haha
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| Posted: 10 Mar 2010 19:10 | [?] |
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| Are you sure a 660 will be enough for 6 LEDs in series? | |
| Posted: 10 Mar 2010 21:18 | [?] |
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depends on the rating of the LEDs... The LEDs should come with a datasheet that gives you the specs.
If one LED wants 12V with a 110 ohm resistor, 2 would be 55ohm, and so on only if you're wiring in series. If you did a parallel bus type, then you would want one 110 ohm resistor per led, wired independent of each other, sharing a common ground or positive. personally, I'd spend the extra time to go with a BUS type setup rather than in series. Sometimes LEDs just go bad, and like XMAS lights, if one goes out, you don't want to lose your whole tail light... I'm keeping my eye on this thread... |
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| Posted: 10 Mar 2010 22:15 | [?] |
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| Very good writeup... Interested to see how it looks when your all done. | |
| Posted: 10 Mar 2010 22:28 | [?] |
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| Kajer- good call on the parallel wiring! More time consuming with soldering, but a lot less of a headache to replace just one bulb. | |
| Posted: 11 Mar 2010 05:58 | [?] |
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| Yes I did all the math and a 660 resistor is enough for each series circuit. And if one light goes out I will only loose that strand...not the entire brake/turn signal. I have it all done and the brake/run light work just fine. Just having a problem figuring out the turn signals. This is my first time with LED's so I'm learning as I go. It honestly isn't that bad to solder all the joints one you get a system going. I just glued all the led's and resistors to the board then started soldering. Give me a few and I'll get a picture of the finished part. | |
| Posted: 11 Mar 2010 06:02 | [?] |
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| Posted: 11 Mar 2010 06:32 | [?] |
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| does it work? not questioning your ability just looking for pictures. | |
| Posted: 11 Mar 2010 06:39 | [?] |
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| Well the run/brake does...but like i said earlier the turn signals aren't quite right. I'm waiting on a buddy who is an EE to stop by to give me a hand. Its been a learning experience thats for sure. | |
| Posted: 11 Mar 2010 15:35 | [?] |
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| Damn, looks awsome.. lots of work though it appears. | |
| Posted: 11 Mar 2010 16:05 | [?] |
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| Actually it was surprisingly easy. I'm sure that its some small reason on why the blinker aren't right yet. The hardest part was just getting the template drawn up for the design. And then as I was putting them together I scratched that idea and went with an easier route. I figure that if I was to do it again it would take around 6-7 hrs if I already have all the parts. | |
| Posted: 11 Mar 2010 18:24 | [?] |
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| I'll need a schematic of how each of those are soldered to each other. Probably looks more confusing than it is. | |
| Posted: 11 Mar 2010 20:28 | [?] |
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| All you have to do is solder anode to anode, cathode to cathode, while completing the circuit between the LED's. If you want I can take a picture with my camera and email you a high resolution picture. Btw I figured out why the LED's weren't quite right...rounding error at the beginning of my calculations. So it looks like the resistance will be 60 for 6 bulbs, 170 for 5 bulbs, 280 for 4 bulbs. I'm going to do some testing before I hookup the new resistors. Check back sunday night sometime and I should have it finished. | |
| Posted: 12 Mar 2010 02:38 | [?] |
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That would be great! Shoot me a PM or email with the pic. Email to davisdesigngraphics@gmail.com
The resistance drop makes sense seeing as how there are more LEDs, thus more resistance given by each one. |
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