To help phone support for (elderly) relatives with Internet trouble, I needed a solution that narrows down the problem space quickly. Asking "which lights are red?" is way easier than asking "can you ...
[Carl] recently upgraded his home with a solar panel system. This system compliments the electricity he gets from the grid by filling up a battery bank using free (as in beer) energy from the sun. The ...
A single-axis solar tracker that automatically follows the sun using photoresistors and a servo motor. Features real-time visual efficiency demonstration through an LED brightness indicator powered ...
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