Witty Pi Power Management

On some computers, I am using my own "custom" / "bare metal" operating system on the Raspberry Pi written in C++.  In addition, I also have a handful of Raspberry Pis that are running the official Raspberry Pi OS (formerly Raspbian).

My goal is to be able to externally control power off / power on the Raspberry Pis running my "custom" / "bare metal" OS, which does not run standard executables (e.g., no ELF) or any scripts (e.g., no Python or PERL)

My question is whether I can configure one of the Witty Pi Power Management boards on a Raspberry Pi running the full official Raspberry Pi OS, and then unplug it, move it, and plug it into one of my "custom" / "bare metal" Raspberry Pis, and have it power off / power on using a set schedule (e.g., every hour).

I am assuming that UUGear provides a program (executable or Python script, etc.) to program and configure the scheduled power off / power on.  I am also assuming that the Witty Pi Power Management boards have a non-volatile configuration, so that the configuration is maintained even when powered off / unplugged / moved to a different Raspberry Pi.  Please advise if either of these assumptions is incorrect.

Also, I am assuming that the Witty Pi Power Management boards work at the firmware / GPIO level, and do not require software to turn the power "on" or "off" to the Raspberry Pi?

Please advise if what I'm discussing is possible with the UUGear Witty Pi Power Management boards is possible.  Please ask questions of any of this is not clear.

Thanks,

Dave Filip

dfilip@colornetlabs.com