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Get KDE Connect battery info (from desktop/laptop)
I find the ability to get my android devices' battery info on my desktops via cli to be extremely convenient. I used to be able to this with KDE Connect easily, but things have just changed. Since I can't find any documentation on how to do this, and since I just stumbled on the answer myself, I though I might share what I know here. Please note that in the examples below, I will be using `{device-id}` as a placeholder for the string that KDE Connect uses to identify to my devices.
That said, I used to be able to get my various devices' battery status through gdbus through the following:
gdbus call --session --dest org.kde.kdeconnect --object-path /modules/kdeconnect/devices/{device-id} --method org.kde.kdeconnect.device.battery.charge
However on Arch, I now get the following error: `Error: GDBus.Error:org.freedesktop.DBus.Error.UnknownInterface: No such interface 'org.kde.kdeconnect.device.battery' at object path '/modules/kdeconnect/devices/b04294f19e8767f5'`. I don't get this message on Ubuntu 20.20, or Linux Mint 20. Since Arch - unlike Ubuntu or Mint - is a rolling distro, this to me implies that newer versions of KDE Connect have changed the dbus interface. That said, how do you get this info now? What do you do? Well, the answer involves using a slightly more complicated command than before:
gdbus call --session --dest org.kde.kdeconnect --object-path /modules/kdeconnect/devices/{device-id}/battery --method org.freedesktop.DBus.Properties.Get org.kde.kdeconnect.device.battery charge
You can also use `dbus-send`. The code is shorter, but the Borne Again SHell doesn't have any auto-completion, forcing you to type *all* of the code in by hand. Here is the code:
dbus-send --print-reply --destorg.kde.kdeconnect /modules/kdeconnect/devices/{device-id}/battery org.freedesktop.DBus.Properties.Get string:org.kde.kdeconnect.device.battery string:charge
You can also use `qdbus`:
qdbus org.kde.kdeconnect /modules/kdeconnect/devices/{device-id}/battery org.kde.kdeconnect.device.battery.charge
I hope this post will be useful to someone. Happy hacking!
PS: feel free to replace "charge" with "isCharging" or "refreshed" in any of the above examples.
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