Rav Vast LED Drum Light
This project is a small, battery-powered LED ring that fits perfectly inside of your Rav Vast drum. It uses color-changing RGB LEDs and a microphone that allows you to change the color or pattern with changes in volume.You don't need any special skills for the construction (though you may pick some ...
By: stevearc
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By: stevearc
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[original story: Instructables]