Programmatically powering-down and powering-up the Duo Linux core

Duo
1

Hello
The Linux core is running well on my Duo256M, and I have an I/O sensor application running on the little core Arduino framework.

I want to have as low power as possible, so I want to run the Arduino core to collect data most of the time, and just bring up the Linux system when needed (mainly for communications).

Is it possible to shut down the Linux core (or greatly reduce power consumption) when Linux is not needed, then bring it up again, all under the control of the Arduino application?

Any suggestions please?

Thanks, Gary

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