Will this RGB LED manual color changer circuit work? Answered
I am working on making a lighted banjo head, and thought to use an RGB LED strip (http://www.sparkfun.com/products/10259) so i can change the colors. I am new to electronics, and have no real programming experience. As such I designed this curcuit to work with basic parts i can find easily at hobby stores.
I reasoned that if i increased the resistance of the circuit with a potentiometer, I could dim the LED's. The led strip takes 0.02 amps at 12 volts and is common anode (it has built in resistors for each LED). I cant find low resistance potentiometers so i thought to put 5k ohm pot in parallel with 680 ohm resistor to get the required resistance of 600 ohms to shut off the LED.
I have looked around the internet and haven't seen anyone use this method, so im wondering if it will work. Any help is appreciated as i hope to make an instructable of this project!
Here is a circuit diagram: