How to Make Auto Power OFF Circuit with Arduino? - Circuit Journal

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Arduino Tutorial Series: Building a Circuit, by Rodolfo Cossovich, interface-lab

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Circuit diagram of LDR interfacing with Arduino.

Over Current Cut-off Power Supply Using Arduino - Homemade Circuit Projects

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Automatic Power Off Circuit Diagram

mosfet - Power off arduino via software - Electrical Engineering Stack Exchange

A discrete auto power-off timer with excellent characteristics - EDN Asia

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