Code Arduino to sleep mode

Hey there!!! How are you doing? I’m good, Thanks.

Arduino already has library to do sleep mode. We can just go to Arduino IDE / Tools / Manage Libraries…. Do searching for “Arduino Low Power” and install it.

Sleep mode can be entered by just one command. We can wake up Arduino by either timeout or external interrupt.

Let’s go.

Go to Arduino IDE / File / Examples / Arduino Low Power / TimedWakeup.

This example does a loop to blink LED (1 Hz) for 1 time and sleep for 2 seconds.

Go to Arduino IDE / File / Examples / Arduino Low Power / ExternalWakeup.

This example needs 1 push button connected to pin #8. It blinks LED (1 Hz) for “N” times and then goes to sleep until button is pushed.

When button is pushed, Arduino will wakeup and increase “N” number by 1 so LED will blink 2 times for this loop and then sleep until button is pushed again.

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