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Posted in Holiday Hacks Tagged arduino, christmas lights, decoration, laser projector, led strips Post navigation Check out the video after the break to see this setup in action.
With Halloween right around the corner, this could be a great way to spice up some trick-or-treating. The projector is weatherproof, has survived one harsh winter already, and can be up and running for any holiday. After that it was a simple matter of attaching the projector to the roof and zip-tying the LED strips to the eaves of the house. This and a few other laser-related quirks were taken care of with a bit of programming to make sure the system was functioning properly. The only major problem came across was having to account for the lasers’ motion in the projected patterns, which was causing the computer to read false values.
This creates an interesting effect similar to some projects that feature home theater ambient lighting. The LEDs are powered from a custom-built supply that is controlled by a laptop, and the program that runs on the computer averages the colors from the video signal going to the projector which lights up the LED strips to match the projected image. The project also includes a few RGB LED strips which can match the colors displayed by the projector. What started off as a thought that it would be nice to hang a wreath over the garage soon turned into a laser projector that shows holiday-themed animations on the front of the house. already has his early start on the decorations, with a house-sized light show using LED strips and a laser projector that he built last Christmas. It’s August, and of course that means that it’s time for retail stores to put up their Christmas decorations! But seriously, if you’re going to do better than the neighbors you need to start now.