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Topic: Sleep Mode with wake from serial (Read 648 times) previous topic - next topic

dmpdiscos

hello all,
i am looking to move a project i have been working on to a arduino DUE but due to the DUE's slightly higher power draw than the uno r3 i was using i am looking at using the sleep mode of the controller but in order to do so i need to be able to have the due listen for data from my hc-05 module and wake up in order to process requests, then power back down of course.

but i havent managed to find any useful info on if this is even possible and if it is what the most power efficiant sleep mode i could drop to while maintaining interrupt ability.


HELPP :)

ard_newbie

#1
Apr 15, 2020, 06:46 am Last Edit: Apr 15, 2020, 06:47 am by ard_newbie
There are 3 different low power modes you can work with the DUE. Backup mode, Wait mode and Sleep mode are described page 25 of Sam3x datasheet with their respective wake up events.

Note that due to LEDs on the board, the DUE current consumption is not as low as could be the Sam3x.

There is a workaround for that with an additional breakout board:

https://www.adafruit.com/product/3435

https://forum.arduino.cc/index.php?topic=585846.0

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