Does anybody know any project that is closer to what I’m looking for?
Anybody else looking for a babyphone? Anybody willing to invest time? I’m learning python, did some perl and bash. And I have a testing environment at hand …
I think I remember people interacting with calls+sms via command-line. If that works, you could try to write a bash script, although I wouldn’t know how to write the necessary interface with the microphone or battery to get noise and power levels.
Maybe. But I do not carry around something like that and for me it is cheaper to use what I carry in my pocket anyway (beside the fun and cost to make a little program to do what I’m looking for - but there’s still hope that this already exists somewhere).
I’m a little confused by this. If the monitor is running on the Librem 5 then you aren’t carrying it around. So it might need clarification as to whether the environment here is two Librem 5 phones or something else. It probably would make more sense to use a Pi as the monitoring device.
Anyway, if you are prepared to accept alarm-via-email instead of SMS or call then this bullet point is easy (and less demanding of technology). Even alarm-via-SMS (if using a Librem 5) is readily doable (refer Community Wiki). Alarm-via-call might be harder.
I think that you would need to have the Librem 5 on mains power. Therefore any alarm would be a rare scenario i.e. mains power out for an extended period of time (> 8 hours?) while you yourself remain away for a similarly long period of time.
But OK you want to cover your bases.
My Librem 5 speaks to me when the battery is low. Just using a cron job for that.
Do you actually have a testing environment available or will it become available in the near future?