Recently I decided it was finally time to get some Christmas lights for my ... red, and blue, each spaced 12 inches apart (the flexible, green wire "string" has an 18-inch lead and 12-inch tail).

In this setup, if one bulb burns out in the strand, the current won't flow through the entire circuit, which means the entire string of Christmas lights will go out. Some of these could be ...

Yep, RGB LED Christmas Lights with PWM for under $7. Can’t beat that. [James] wrote an Arduino library to control these strings and put it up on Github. While your local Walgreens has probably ...