I have a card that displays the current temperature of a cooking thermometer, but only want the card visible if the probe is in use, and there doesn’t seem to be any entity I can use that explicitly tells me this, however I can assume the probe is not in use if no readings are received in (x) minutes, is there a way to hide a loveless card if the sensor has not been updated in 5 minutes for example?
Create a template binary sensor and use it in a conditional visibility.