[BRLTTY] Being notified when battery level is low

[Sébastien Hinderer]

Hello Mario, many thanks for your message!

Mario Lang (2020/10/06 13:00 +0200):
> Sébastien Hinderer <Sebastien.Hinderer at ens-lyon.org> writes:
> 
> > Raphaël POITEVIN (2020/10/06 10:21 +0200):
> >> Maybe a cron running a script which check the battery level with
> >> acpi. You can send a sound.
> >
> > Yeah that could be an option indeed. Thanks!
> 
> if [ $(cat /sys/class/power_supply/BAT0/capacity) -lt 10 ]
> then play sound
> fi

That was a great idea, thanks! I installed it as a cron job and it kind
of works, except when X is running becuase that starts PulseAudio, and
then the cron job is unable to play sound for a reason I don't know, it
seems it does not find PA so that's something that remians to be
investigated for me.

> For those which use Emacs as their text desktop environment,
> there is
> M-x battery RET which will display battery status in the echo area and
> M-x display-battery-mode RET which will display battery status in the
> mode-line.

That's good to know! thanks a lot!

> I sometimes also use "acpi -bat" on the command line to check the
> temperature and how long I will be able to continue working on
> battery.

Yes, I use the acpi command, too. Thanks a lot for mentionning it.

> P.S.: It appears the same things are coming up over and over again for
> those of us who do not run a graphical desktop.

Yes, I fully share the observation.

> Screen curtain and
> battery status come to mind.

I would maybe add automount...

> Maybe it is time to actually write a tool
> which somehow collects these small tasks into something that somehow
> just works.  I would love to have something like
> apt install text-mode-junkie
> It would make it easy to turn down keyboard and display backlight, play
> a sound when battery is low and maybe offer current weather based on the
> current IP address.  Basically what GNOME 2 used to offer as applets.

I would also appreciate having all the features a graphical desktop
offers in text mode, but it feels it could be hard to maintain. It's
also my impression that we text-mode guys go a bit against the present
momentum and that it would be less painful to adapt ourselves to the
graphicla world than to try to resist to it. I am writing htis with some
sadness, I really don't like the graphical world.

Sébastien.