Hi, I have a sonoff sv that I use for opening my garden sliding gate.
It works off a solar panel and 12v 7ah battery.
Sometimes if we do not have sun for more than 3 days the battery runs low and the battery gets damaged and the gate won’t open.
Does anyone know how I can measure voltage using the sonoff sv or find GPIO17 on the sv.
I’ve tried google, and the GPIO17 analogue input is mentioned on the ESPHome site, but I cannot find any info on where it is located.
Any help would be appreciated.