Calculate when sensor will reach certain value based on current trend

[briodan (John Doe)]

I’m trying to figure out when my a sensor (in this case a BBQ probe) will reach a certain threshold value based on current trend.

thinking i need to setup some kind of derivative sensor to get the rate of change
then setup a template sensor that would do (target temp - current temp)/rate of change.

but i’m having a hard time wrapping my mind around it.

[Hellis81]

So start with the sensor and see what that gives you.

Derivative

[finity]

Here’s a post where I posted my solution to an equivalent question:

Calculate cook time based on meat probe temperature?

I don’t know what you are using now but this should keep the estimated food done setting the same amount of time into the future: - alias: SM Set Time Smoker Food Done trigger: - platform: time_pattern minutes: "/5" condition: - condition: state entity_id: input_boolean.smoker_sensor_active state: 'on' action: - service: input_datetime.set_datetime entity_id: input_datetime.smoker_food_done data: timestamp: > …