I want to collect the battery level of my laptop at regular intervals (5 mins) and when it is 100% i want to ,make an automation to switch off my Sonoff S20 which is charging it - and vice versa when it is 10%.
How can i create a sensor to do this? My Hass.io is on a Rasp Pi3
Thanks
you can write a powershell script to do this that run on the laptop.
I might do the same, can share when finnished if you don’t write/find anything until then.
ok. i have googled that and it seems ok so far but how do you extract that from the laptop to hass?
I think like this:
Also, this is how you get battery status in %:
(Get-WmiObject win32_battery).EstimatedChargeRemaining
I googled it but its beyond me. Please share if you create it.
Thanks
I will updates you as fast as it is done 
Just have to understand this new Home-Assistant API authentication first.
My plan are to make a powershell script to send all kinds of info from the PC to Home-Assistant, like cpu load, ram usage, drivespace and so on.
did you ever do this mate?
No, It had not gotten any priority yet …
I made this: https://github.com/flemmingss/Home-Assistant-PowerShell-Module
But as for your issue I just find this project that I think can help:
thank you!
Sadly, this just doesn’t seem to want to report the battery status for me.
It’s worth another look. I managed to get it working by stopping the windows service after I updated the config file and then starting the service again.
Refreshed mosquito broker too and all the entities showed up.
The battery status did initally not report correctly. I just refreshed home assistant and then all the info came up.
IOT Link can send laptop batter status with the addon & MQTT.
It seems that project is somewhat abandoned and its README now recommends using Hass.Agent instead.