Raspberry Pi RGB Controller - Where do I start!

[XL5]

Okay, so I have these strips of RGB LED's and I would like to control them over an IP network using a Raspberry Pi.

I am more than comfortable writing the software stuff, I'm just not sure where to begin when designing the circuit for this. As I understand it I want to have a constant 12V down one pin and then I should vary the resistance(?) of the three other pins to dim/brighten the RGB components.

What should I look to be doing here?

[Thor-Arne]

Google "raspberry pi mosfet pwm", that should get you started.

To dim the colors of a RGB led you use pwm.

[Zad]

Alternatively, buy individually addressable RGB pixels. The controller on the LED does all the PWM work for you, and you talk to it down a SPI or similar bus.

[vlee489]

Have a look at my git hubhttps://github.com/vlee489/Raspberry-pi-RGB-LED-Stip-With-Web-Control
I have a led strip controller here but it uses a seprete web server so I don't over work my pi.
But I recomend TIP31 tranisters

[XL5]

That's really cool, I will have a proper look tomorrow!