I have two helpers to store and display min and max temperature values over 48 hrs
I want a switch or pushbutton to transfer the sensor entity value to both the min and max helpers, just as one would do with the old reset magnet on a min max thermometer.
It seems a simple task to poke one value “temp” into the helper values “temp_min” and “temp_max”, but I am unable to figure out how to arrange it with a helper or automation.
If anyone has any ideas I would be grateful.
The base sensor is a DHT11 linked to an ESP32