Ok guys, I am new here, and this electronics forum is looking a little, well, um...empty; aside from the interesting articles on Amplifier Classes...

Here is a project that i designed myself that you may use, this provides that you know the electronics basics, including polarity, Volts, amps, and ohms. It is very easy, and even though it looks complicated, if you look at it in sections, it is extremely simple. Here is a schematic of the circuit, (keep reading, dont let this turn you off)

I am unsure of how well the guys on this forum are assiciated with electronics, so, im hoping there is someone out there that can understand this.


I am also working on using LM3194's to make a Digital Dash unit for a speedometer and Tachometer.




If you can't tell by looking at it, this is a circuit that will give you brake and turn signals a Night Rider effect. Place this circuit in your 3rd or spoiler brake light and this will guarantee that people notice when your turning.

When the brake is on, all the LED's light up, and the full bar is lit. When the brake is released, a single light stays on and chases back and forth until one side of what is called a "Flip Flop" is released. When you turn on your blinker to turn left, the circuit will disengage the right switch, so the counter will start from the left, chase right, and reset back to left. This also applies to the Right side. But when the brakes are off and no turn signals are on, the Light will chase back and forth.


ok, first lets break this down by section...starting with the middle 555, this is a NE555 or 7555 or whatever 555 you want to use, any one will work here. This circuit simply makes pulses on pin3, that is it's only purpose. The variable resistor on the positive side (connected to pins 4 and 8) adjusts the frequency, (how many pulses per second) This will adjust how fast the light goes back and forth. from as little as you want, to until it goes so fast that the entire bar looks like it's on.

These pulses go into a 74193, this IC takes the pulses and either counts up or down in Binary, This is a Digital Logic IC. the counter starts from and counts to 16, but not in decimal, it counts like this:

Line
DCBA
0000 - light 1 is lit
0001
0010
0011
0100
0101
0111
1000
1001
1010
1011
1100
1101
1110
1111 - light 16 is lit.

This is a 4 bit binary counter, so you can only have a max possible output of 16 different combinations.


There are 14 lights on this bar, because i used the other 2 output pins to drive the flip flop triggers.

Now, the 74154 takes the 4 line output from the 74193 and performs a task called "Demultiplexing" but don't use that word too much because people will think your a geek.

I don't expect anyone to really understand this without a sufficient background in electronics, but this circuit is the basis of my project and has been modded a few times. It really does work.

You guys are welcome to make suggestions if you have a better way of anything, please let me know. i have been working on this circuit for my car, but it isn't finished yet.

Damn dude thats a killer write up. I read a little of it but I have no clue what most means.....did you actually write this up yourself?

I'm as confused as a baby in a titty bar

anything to do with Knight Rider is OK in my book! Good thread though. So you're making this for your ride?

x2 You will be hearing from me soon though I have some ideas for the wifes car but need a brain that knows this stuff

can u tell us that in english?

Thats going to be pretty sweet.

As for understanding what you wrote. I understand some of it for the most part. All I can say is you got some skill there.

this kid is nasty with LED and neon work. anyone need any interiors done or undercarriage or accenting, hit him up

Thanks J Kellz,

and the answers to your questions are yes, yes, yes, yes, yes, yes, and yes.

I made this circuit myself, among many others.

I am a big fan of auto electronics mods. I changed all my incandescent bulbs in my car to LED, most of them are Red, some white, and i order led's by the thousands just to mess with and add to different things.

So if anyone needs anything, let me know, ill hook you up, with answers, schematics, theory, or parts, i got it all.

Im thinking i may make a thread with pics of some of my work. ill work on that

I apologise for confusing you guys, maybe a little less on the write ups and more with the results, huh? lol

yooooo we still need to do my car with all the accenting LEDs. PM me so we can talk about getting this done before its too cold man

PM sent

There is absolutely nothing wrong with bringing the tech. It may confuse some but it reads like a set of instructions should anyone want to copy or adapt what you did for their application.

I can't see the pics (blocked by the work server) but I can understand it pretty well. Then again I deal with techy stuff on a daily basis.

PLEASE more write-ups!

Also, I'm looking for a circuit that will take a turnsignal that uses two bulbs at the same time, and causes them to chase.

Inner on.. outer on... inner off.. outer off.. repeat.

Using standard bulbs.

Like a first gen Cougar.

"PLEASE more write-ups!

Also, I'm looking for a circuit that will take a turnsignal that uses two bulbs at the same time, and causes them to chase.

Inner on.. outer on... inner off.. outer off.. repeat.

Using standard bulbs.

Like a first gen Cougar. "

****This is an example of "Ghetto-Quote"


Ok, well lets see, that would be kinda easy, kinda like the mustang turn signal, except the mustangs use 3 lights. MY suggestions is to use LED Clusters. LEDS offer more light, brighter output, cleaner color, and they can easily be controlled by digital logic and microcontroller circuits.

for instance, use 10 LED strips and a LM3914 (Dot/Bar Display Driver IC) and when you turn signal, the stips light in sequence and fill on like a bar graph.

This is my next project, im looking into it with Strat-4 from 401motion.net: Watch the video in my top post

http://www.401motion.net/forum/viewtopic.php?f=24&t=4181

Sick!

You doing this as side jobs for people?

Yeah, anything i can hook you up with?

I promise i will have more write ups soon, my trigger finger got a little itchy so i had to paintball it up last weekend. more is coming i promise!

Your questions and ideas are welcome

also it doesn't have to be AUto either, I do PC repair, cell phone repair, LAptops, networks, software programming, circuit design, audio, video, i do anything really...lol

hit me up

I wish my truck had a low fuel indicator LED mounted on the face of the fuel level gauge.

Sadly thats the first thing that came to mind.

lol, you serious? is yours broken or non-existant? what year truck?

wtf..

It's a 79 F100

That wasn't standard until mid 90s on them.

Cluster here



Hit me up on AIM (Psquare75) and we can discuss.

wow dude that's some amazing work i've seen. i looked at the other forum and ur fist vid with the tachometer is awesome. once i get my new ride you will DEFINITELY be hearing from me. hell, you may hear from me even before then.

Well, that isn't exactly my circuit...I used that as an example to show someone a circuit that does something similar. I know how that circuit works though, it's just 2 sets of cascaded LM3914's. Hardest part is glueing all those tiny LED's to each linne in the guages.

A LM3914 is a bar graph meter. it works with comparators, as the voltage increases, the lights light up a bar in segments until the whole thing is lit. maybe one segment lights at .5V, then the next at 1V, then another at 1.5V and so on....

You can adjust how much voltage turns each segment on with a fullscale adjustment variable resistor one of the pins.


That Actual circuit was build and installed by someone on vwvortex