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Switch color of LED when current passed in

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New Member
Hi All

I am looking at doing a mod for my mouse, basically so when I scroll the mouse wheel, it changes the color of the LED.

i have almost found a RGB LED as they are known, I'm trying to find one with 4 legs. so it will have red, green, blue, and ground.

I need a SMALL circuit that can chage which leg the current is being passed to, when I pass voltage into a seperate line. I don't know if this makes sense, but I would really like to hear from someone who could help me with this.

Thanks in advance, :)

Someone Electro

New Member
You beter get to thinking with logic gates...

To do it with transistors can get complicated a lot!
Any how logic gates can get comlicated to but not as lot as transistors.

And here is a noter idea:

Study the circutry of a computer mouse.Meaby you will find the anser.

I think this project is to comlicated! :?
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