I would really like some guidance on a project I'm working on if that's possible.
The project basically involves lighting my computer case up like a Christmas tree.
I'll have three or four different colored LED arrays, each array is wired in parallel.
The LEDs I was thinking about ordering are these: http://www.amazon.com/gp/product/B0092X7UOA/ref=noref?ie=UTF8&psc=1&s=hi http://www.amazon.com/gp/product/B0092X7U7M/ref=noref?ie=UTF8&psc=1&s=hi http://www.amazon.com/gp/product/B0092X7VC6/ref=noref?ie=UTF8&psc=1&s=hi
Each array will be wired to a port on a self powered USB HUB.
Each port will output about 5v and will be able to support max 25 LEDs.
Each LED has a forward voltage of 3.3v and a forward current of 20 mA (max value).
Basically I will "run" the LEDs at 16 mA each, I want to be able to control the LED arrays with an arduino.
What kind of Transistor should I use for each array, and is it possible to control the output to the transistors using bluetooth?