Does anyone know of an off-the-shelf sensor (preferably Tasmota) to monitor 12v battery voltage?
Thank you.
You could simply make your own voltage divider, but if you don’t want to solder you can get a pre-built one for around $2 on Aliexpress, a bit dearer elsewhere:
Thank you!
As much as I would love to build it myself, time is too scarce.
I need a complete, prebuilt solution to measure voltage and make it available via wifi.
I was looking at the Shelly Uni – looks very interesting.