Condition types

Condition types

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Scenes - Condition types

What do the different condition types mean and how do we use them?

There are three different condition types:

  • Once
  • On any change
  • Repeatedly (every minute)

In the following example, we are using a Shelly BLU Motion sensor to measure the illumination. We would like something to happen when the lux level goes below 50 lux.

Once

When the pre-set condition is met, the scene will be activated only one time (once). This means that the scene will only be activated if the lux level changes from above 50 lux to below 50 lux. For the scene to be activated again, the lux value must go above 50 lux and then below again.

If a time is set in the “condition is valid” field, the scene will not start until the condition has been active for the selected time.

Examples of the use of “once”
  • When a wall switch connected to a Shelly Plus I4 is turned on/off, a relay can be switched on/off.
  • When the TV is switched off and the energy consumption drops, Shelly Plus Plug S can switch off to reduce stand-by consumption.
  • When the washing machine is finished and consumption decreases, a push message can be sent.
  • When an underfloor heating string is activated, the circulation pump must switch on.
  • When the humidity falls below the desired level, the fan must be switched off.

  

On any change

Whenever there is a change to the condition and it is above/below the specified value, it will activate the action.
This means that the scene will be activated if there is any change below the 50 lux.

Examples of the use of “on any change”
  • When motion is detected in a room and you want to keep the light on (note, Shelly Motion 2 and BLU Motion will always reset the timer when motion is detected, but this makes sense with external motion sensors connected to e.g. a Shelly Plus I4).
  • To monitor the humidity level in a bathroom.
  • To monitor the power consumption.

  

Repeatedly (every full minute)

Whenever there is a change to the condition and it is above/below the specified value, it will activate the action.
This means that the scene will be activated if there is any change below the 50 lux

At the same time, the condition is automatically queried every minute, and if it is above/below the given value, the scene is activated.

This then means that the value of the condition is checked every minute, and if it is still below 50 lux, the scene is activated again.

Examples of the use of “repeatedly”
  • For constant monitoring of e.g. water level.

Do you have more use cases? please send us a message!