Thanks in advance to anyone who might help or assist me in this project and to everyone who make this forum possible. I've made some RGB lamps before but I've only used small LEDs directly powered by the arduino board. Now I wish to move up to the High Power Star LEDS.
I searched but couldn't find a schematic for driving 10 3Watt RGB Common Cathode LEDs with a 30Watt 12V 2.5A Driver. Here are the links to the items I have.
i wish to drive 3 channels of 10 leds. Having all the RED hooked to a channel, BLUE to a channel and RED to a channel. I would like to use the PWM modulation on the Arduino to vary the brightness of these three channels to make a large mood lamp.
i found this layout that seems close and i have a few LM317s around but i want to use more LEDs and didn't understand the language. from http://forum.arduino.cc/index.php?topic=103948.0
Any help would be appreciated. And i'm cool with using eight or nine LEDs and/or ordering some other transistors. Thanks!