the solar power monitoring thingy is a webpage, so i download that webpage as a text file:
wget -q http://192.168.1.26 -O $zepath/index.html
(ignore the $zepath)
Then I look for the line I want ("Last System Power") and extract the value:
val=grep -A 1 "Last System Power" $zepath/index.html...
I have a 6a granny charger which then is 1400 watts approx...coupled to my solar panels, so charging the car never costs anything - coupled with a little script on a raspberry pi which asks my solar setup how much i'm producing, and then turns a shelly smart plug on or off, if i'm producing at...
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