Discover how to build a simple DIY water-powered electricity generator at home using accessible materials. This step-by-step ...
Why we love it: Of every LED mask we've ever put on our face, this is hands-down the most fancy. It has 770 LED bulbs, emits ...
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VU meter DIY kit with LEDs | LM3915N-1 LED driver
This time I bring an electronic kit for beginners, this is a very cheap and interesting device that displays audio levels ...
Kurt Aaron is testing a product that claims to help people read the fine print when their eyes are a little tired ...
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