How to Build a DIY Interactive LED Coffee Table!

For those of you who want to make an interactive coffee table that will respond to your guests hand gestures, check out this cool DIY interactive LED coffee table, which uses photo-resistors to detect movement.

This is my instructable on building a simple LED table that works and responds in an analog manner. It was to be built of individual pods with 4 LED’s with there own photo-transistor to detect movement, or rather a disturbance in the light/wave patterns above them. It seemed simple at first, hook up a couple LED’s & a resistor to a power source that is interrupted by a photo-transistor to act as a switch and voila, right? place foot in mouth here.

via instructables

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