Recommended · for some experience
Low Power Arduino! Deep Sleep Tutorial
Why people recommend it
Shows how to put an ATmega328 into deep sleep and wake it with interrupts or the watchdog, reaching microamp currents on a bare chip.
Watch for: a full Nano board will not reach the bare-chip figures
In their words
I've learned about putting an Atmega328P to sleep from this tutorial.
A. Orchard on arduino.stackexchange.com, Nov 2016. CC BY-SA.
This tutorial shows how to put the arduino to sleep and use a watchdog to wake up at intervals:
Tono Nam on arduino.stackexchange.com, Jul 2020. CC BY-SA.
