Binary sensor template combining two motion sensors

1 
  - platform: template
    sensors:
      bathroom_light:
        value_template: "{{ is_state('binary_sensor.motion_sensor_158d0001e552f3', 'on') or is_state('binary_sensor.motion_sensor_158d0001e542bc', 'on') }}"

Should this = on in all these situations

  sensor A = on and sensor B= on
  sensor A = on and sensor B= off
  sensor A = off and sensor B= on

and off in just this situation

  sensor A = off and sensor B= off
``
2

i created a timer for how long my light should stay on after motion is detected.
then created an automation for each sensors.
automation 1 when motion is detected sensor A:

  • cancel timer
  • start timer
    automation 2 when motion is detected sensor B:
  • cancel timer
  • start timer
    automation 3 when no motion is detected by both sensor A and B:
  • timer.finished as trigger
  • sensor A and sensor B are off as conditions

it’s not perfect but works for me. i’m hoping someone could improve it.

3

Any one know the answer

I need a template that is true when A or B OR A & B are triggered by motion. Does the above template match that?

4

still no one, guessing it this is not possible.

5

The simple logical “or” should handle those cases. Or means “if at least 1 of the specified conditions are true, then it’s true”

The logic you’re applying sounds correct.

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6

but does it mean true for when both sensors are on?

7

Yes. Or means “one or more” of the specified conditions.

Both on is still one or more of them on.

A real world comparison, if it’s cold or rainy, you wear a jacket. If it’s cold you wear a jacket, if it’s rainy you wear a jacket, if it’s both you wear a jacket.

The same thing applies with this on/off “or” statement.

1 Like