Switch color of LED when current passed in - Electronic Circuits Projects Diagrams Free

tim_l_012 · 10th September 2003, 01:52 PM

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 · 10th September 2003, 06:30 PM

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.

PS:
I think this project is to comlicated! :?

LiquidKernel · 11th September 2003, 08:27 AM

Here's a good source of LEDs and in particular the tri-color LED you're looking for: http://www.superbrightleds.com/TriColor%20LED.htm

These guys provide a good service and have fast shipment.

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10th September 2003, 01:52 PM	(permalink)
tim_l_012	Switch color of LED when current passed in 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, __________________ Tim.

10th September 2003, 06:30 PM	(permalink)
Someone Electro	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. PS: I think this project is to comlicated! :?

11th September 2003, 08:27 AM	(permalink)
LiquidKernel	Here's a good source of LEDs and in particular the tri-color LED you're looking for: http://www.superbrightleds.com/TriColor%20LED.htm These guys provide a good service and have fast shipment.