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Step 3Build it: The Controller
Once you have a single color in place, you'll want to build the controller. I used a boarduino (Arduino clone) but any microcontroller is fine. Wire up the power FETs so that the gates are connected to the hardware PWM outputs, and the sources to ground. (images 3a & 3b)
To make traces on perfboard high-current-capacity you can use a 20 gauge wire as a backing and solder on top to make a path. (image 3c)
Which you can sort of see here (image 3d)
You don't have to wire up all the FETs now, start with one. We used 5.08mm (0.2") terminal blocks to make wiring easy (image 3e)
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