Compiling a stash of emergency-preparedness items used to be a task many of us kept on the back burner — something we knew was important and we’d get to eventually. But eventually, we now know, might ...

Abstract: this paper describes the design, and fabrication of a low-cost single-axis solar tracker using an Arduino Uno, aimed at maximizing captured photovoltaic energy. The system employs two LDRs ...

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