Hi, there. Is there a plugin or method that lets me create variables or virtual devices based on values from my other devices and calculations?
I am trying to monitor my heating and power consumption. To make it work I would like to do these three things:
1. Have a variable (or virtual temperature sensor) whose value is the mean of all my temperature sensors' current values.
2. Have a variable (or virtual energy meter) whose value is the sum of the current energy consumption of a group of devices.
3. Have a variable (or virtual energy meter) whose value is the sum of the current energy consumption of a group of devices (as above) and then multiplied with a fixed number.*
* The purpose of this: I have energy meters on most but not all my heaters. In order to estimate the total power consuption by all heaters, I would like to sum up the current wattage of heaters with available data and then multiply this value with a certain ratio.