esp32 wake from sleep via interrupt then return to sleep

[rktuttle]

I would like to put esp32 into light sleep mode then be able to wakeup via ext interrupt. Next, I want to resume the sleep cycle. My attempts restart sleep cycle after interrupt is serviced. Problem is that a new sleep cycle is started after each interrupt.

[Agree007]

Thats the way it works, you will have to save you state and other required data, before going to sleep and the reload data when it wakes up.

[fasani]

Yes I agree with that.
Do you think is a good idea to use the Preferences class to save state?

[Agree007]

Yes I agree with that.
Do you think is a good idea to use the Preferences class to save state?

The Preferences class is very easy to use and control, so in most cases I would use it, but it migth depend on what else you code does and require.

[rktuttle]

Thank you both for your replies. I am new to this and will have to learn about the Preference class. Will do a google search.
Thanks again.