Solar Charged Battery Powered Arduino Uno

This instructable shows how to create a time switching battery powered solar charged circuit, which is used to power an Arduino Uno and some peripherals (sensors, communication modules, etc.). If you want to design a remote data logger, power supply is always a problem. Most of the times there is no power outlet available, and that forces you to use some batteries to power your circuit. But eventually your device will go out of batteries… and you don’t want to go there and charge it, right? So a solar charging circuit was proposed to user free energy from the sun to charge the batteries and to power your beloved Arduino.”

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