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The best Christmas tree lights


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Every Christmas I always have some project that I want to do but then then time flies and I can't get it finished.  Last year, I decided to actually finish one project and I built the best Christmas lights ever. 


This was a quick and easy project that needed the following ingredients.

You will need multiple LED strings depending upon the size of your tree.

Here is 1 LED on the string:


You can see the ribbon cable connecting them together.  Each LED is about 12mm in diameter.  The ribbon cable hides well, but perhaps one day I will paint the wire.



One LED, the power supply and the Arduino are inside this box.  I used the first LED in the box to light the box and to strain relief the cable.  You can pass a USB cable inside if you want to reprogram it.  The box is a simple laser cut 6mm plywood box.  The HEX hole pattern was overkill and almost caused a fire in the laser!  Of course I have a laser cutter in my shop.  Everyone should have one.

Currently I am simply running the demo code which cycles through a number of animations.  One day I plan to add a DMX software in the arduino and a raspberry pi as the controller.  Then I can be lazy and write code on the couch via WiFi to change the animations.


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