Home Assistant: Using threshold and derivative for Tom

temp_rise_fall_for_tom.yaml

# The derivative sensor outputs positive for rising temperatures and negative for falling temperatures.
# The threshold sensor will give you a binary sensor called binary_sensor.furnace_temperature_rising 
# which outputs "on" when temperatures are rising and "off" when they are falling.
# The hysteresis setting determines the ˚F/min rate necessary to switch states, limiting false positives.
# Finally, the template sensor tracks the amount of time between changes in the threshold sensor.


sensor:
  - platform: derivative
    source: sensor.furnace_temperature
    unit_time: min
    name: furnace temperature derivative
    time_window: 00:01:00
  - platform: template
    sensors:
      furnace_temp_period:
        value_template: >-
          {{ relative_time(states.binary_sensor.furnace_temperature_rising.last_changed)}}
binary_sensor:
  - platform: threshold
    entity_id: sensor.furnace_temperature_derivative
    upper: 0
    hysteresis: 2.0
    name: Furnace Temperature Rising