Step 9Ideas for Changes
There are 3 extra pins on the Arduino available to add extra channels. I'll probably add these three next year (or go with both of the next two options).
Use higher-powered TRIACs, such as the 4A Z0405
-as long as you are using LED lights, 1A should be PLENTY
Use a shift register so that you can have more than 11 channels.
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