I'm new to all this, but pretty quick to learn. I'm going to assume this is a n00b question, but I can't for the life of me find anything that explains my query! :(
Before I start; I'm not too interested in controlling each LED individually, so I'm assuming I don't need a shift register (don't know how to use one yet anyway). I just need to be able to control an array of LEDs as a single unit.
I want to create a simple 20 x RGB LED array spotlight with PVM.
I've written a small code to control a single RGB LED with onboard digital pin PVM, mixing the colours, all fine.
I also know that a bunch of LEDs in series require a higher voltage. I can connect these directly to 12v (for example, with the correct resistor) and have them all light up nicely.
The digital pins on my Arduino Uno board don't output 12v however... so how do I get 12v to my LED array VIA the Arduino so I can control it??