remote on/off/on relay for fog lights

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grndthft3

Member - Posts: 3

Joined: October 23, 2006

Location: United States

Posted: February 09, 2007 at 12:50 AM / IP Logged

I have been trying all day to create something that will make my fog lights work w/o a switch. I want to tap onto my parking lights (12v constant when on). I want to be able to turn my parking lights on off and on really quick and have the fog lights turn on. I know this can be done by using simple diodes, relays and perhaps a cap. Anyone care to help?

bellsracer

Silver - Posts: 703

Joined: January 14, 2006

Location: United States

Posted: February 19, 2007 at 2:27 AM / IP Logged

Just need a relay

30 fog lamps

85 parking lamp wire

86 ground

87 fused 12v source (most fogs will need a 10 amp fuse)

87a factory fog lamp wire (if available)

That should turn on your fogs with the parking lamps safely

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The difference between ordinary and extraordinary is that little extra.

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grndthft3

Member - Posts: 3

Joined: October 23, 2006

Location: United States

Posted: February 19, 2007 at 5:44 PM / IP Logged

Thats just a basic fog light set up. I want the fog lights to always be off with my parking lights turned on. With the option of turning the fog lights on (only) by flicking the parking lights on , off, then ON -> With it now having the fog lights turned on with the parking lamp. Then when I shut the parking lamps, i want the fog lights to turn off.

KPierson

Platinum - Posts: 3,527

This member consistently provides reliable information

Joined: April 14, 2005

Location: Ohio, United States

Posted: February 20, 2007 at 9:57 AM / IP Logged

You could do it really easy with a microcontroller. It would be very similar to some products I've made in the past.

You could do it with relays if you got really creative I'm sure.

Why don't you want to use a fog light swtich?

Kevin Pierson

grndthft3

Member - Posts: 3

Joined: October 23, 2006

Location: United States

Posted: February 20, 2007 at 11:33 AM / IP Logged

I wanted a unique way of using them. Thats all. How does the micro controller work?

KPierson

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Joined: April 14, 2005

Location: Ohio, United States

Posted: February 20, 2007 at 4:05 PM / IP Logged

I microcontroller is a small programmable IC chip. You have to write the software to make the chip do what you want it to do. With the right software downloaded to the chip they can be very powerful and do almost anything you want them to do.

They do have their downfalls, with the biggest downfall is that they are typically 5vdc devices so you are stuck doing a lot of voltage regulating/converting.

If you have an electronics background there are quite a few beginners sites that will get you going. If you don't have a strong electronics background then this probably isn't a good method for you.

I'm always looking for fun little projects, so if you want some 'help' shoot me a PM.

Kevin Pierson

bellsracer

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Joined: January 14, 2006

Location: United States

Posted: March 19, 2007 at 2:15 AM / IP Logged

KPierson wrote:

They do have their downfalls, with the biggest downfall is that they are typically 5vdc devices so you are stuck doing a lot of voltage regulating/converting.

If you have an electronics background there are quite a few beginners sites that will get you going. If you don't have a strong electronics background then this probably isn't a good method for you.

I'm always looking for fun little projects, so if you want some 'help' shoot me a PM.

If you need to run 5v through, consider picking up one of the newer sirius radio car adaptors. All the voltage conversions are done. Just cut off the plug to the radio and meter to find out which side is positive and negative. If you want to hide and hardwire the inverter, you can take apart the housing easily and solder in a run of wire to the adaptor.

Mostly for people looking to save some time... ^-^;

Never send your ducks to eagle school.

The difference between ordinary and extraordinary is that little extra.

The 3Ls of life: Learn from the Past, Live for the Present, Look to the Future.

KPierson

Platinum - Posts: 3,527

Joined: April 14, 2005

Location: Ohio, United States

Posted: March 19, 2007 at 3:39 PM / IP Logged

You could possible do that as long as you used all 5vdc interposing relays on the outputs to drive the fog lights. Adding a 5vdc regulator really isn't a big deal though, and probably wouldn't slow you down too much, plus they are only like $0.32.

Kevin Pierson

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remote on/off/on relay for fog lights

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