I have always wondered myself why the voltage reading of the sensors (around 750 volts) was so extremely off from reality (around 235 volts). I went through the yaml created by Frenck and noticed the voltage_divider value wasn’t set and thus defaults to 2351 whereas several posts on internet refer to the value of 871.
My question is now: is it correct to assume that the wrong voltage divider leads to those high voltage values? And second question: if I apply a calibrate_linear filter would that solve the issue in the same fashion as setting the correct voltage divider value?
Would a calibrated_linear filter not be an overkill, the lower and upper limit of the grid power fluctuation is not that great.
Personally I have several Gosunds running in the house and well did calibrate them the lambda return value with the voltage readings of the P1 grid module readings then i placed them through the house.