Well for a while I've been working on this project to get my cup holders to automatically light up when you put a cup in. I decided to go with an infrared system that turns them on when the beam is broken.
This is a mock up of the LEDs

This is the final product



They each have a dimmer switch on them so there not blinding


I added a power switch so they can be manually turned off




TaDa

 

nice nice i likey

 

nice work!!

 

thats a really neat idea. awesome job

 

cool, thats something new. good idea.

 

Might have to borrow that idea lol Nice work.

Off topic: Was is simple to make the air controls red, pretty easy?

 

Um i tried to just put the cellophane over it but it made it look shitty so i took a sharp knife and scrapped all the blue stuff of the back of the letters and symbols. So it wasnt that hard but it took like 3hrs but it gave me some really bright red color though totally worth it

 

Oh, Good God!

 

Looks good....a lot of wires...

 

wow IR light, thats a great idea. never would of thought of that

 

Sweet! I say write up a how-to on this or just a how-to in general on how to hook up and use IR. Great work!!!

 

Honestly Im not usually a fan of LEDs in cup holders and/or all over the dash but this has to be the cleanest cup holder LED install I have ever seen. Good job

 

very nice. good idea.

 

Thats pretty sweet, A+ for creativity =D

 

dam thats dope!

 

i could be an electrical moron (def. not the smartest), but would it not make more sense to put the LED's on the sides instead of the bottom. what happens when liquid drains down into the LED holes, or did you seal them off really well?

 

Here is a how to from a while back if anyone is interested.

https://www.cobaltss.net/forums/how-guide-43/how-install-leds-cupholders-tons-pics-56k-warning-5639/

 

To answer the question about the draining liquid. I used square LEDs that are brighter and super glued them to the bottom then completely covered them in hot glue so the liquid has nowhere to go if something spills all the electrical connections are covered in hot glue and electrical tape for just that reason.

 

looks good

 

old thread but is there any chance of a how-to

 

Prob not because i dont have the diagrams for the circuit board that controls the infrared leds.

 

well do you know how to wire it up, or links to a website that can explain how it works. i really wanna do this now.

 

holy thats alot of wires!
nice work!

 

looks CLEAN!
nice work.

that is a lot of wires for some little LED's! haha

 

looks good, but not for me.
What happens to the lights at the bottom when condensation forms?
Does it leak through?

Im just curious, is that the only place you installed LEDs, or do you have it all over the car?
Post pics if you have it all over the car.