It Keeps on Going and… Arduino Edition | Hackaday - Hackaday

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It Keeps on Going and… Arduino Edition | Hackaday Hackaday How long can you keep an Arduino circuit running on three AA batteries? With careful design, [educ8s] built a temperature sensor that lasts well over a year on a single charge of three 2250 mAH rechargeable cells (or, at least, should last that long ...