eovnu87435ds Posted September 28, 2010 Share Posted September 28, 2010 Earlier today I was looking at Alienware Laptops. I can't afford alienware laptops. But I liked the AlienFX feature. For those of you who don't know, they have LEDs in the vent holes and in the display and in the keyboard, and from a program on the computer, you can change the color to anything in the rgb spectrum. Too bad I will never be able to afford their colorful laptop, but I have been brainstorming on how I can create the same thing for my eee pc. I decided on using an Arduino Pro Mini, 3 pots and 4 buttons for controls, 15x 5mm RGB leds and 10x 5x5mm RGB SMD Leds, which will end up being a maximum of 300mA a channel. The problem is that the Arduino can only output 40mA per channel. So the question is, how do I go about wiring this all up? I assume in parallel, but besides that, I'm not sure what else I need. PS: the led's can be found here: Super Bright LEDs The two I am using are the RL5-RGB and the 5050-RGB Quote Link to comment Share on other sites More sharing options...
manouche Posted September 28, 2010 Share Posted September 28, 2010 What you want is a "Darlington array" chip such as the ULN2003 I think that data sheet will make it pretty clear how to wire it up. Quote Link to comment Share on other sites More sharing options...
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