# When do I trigger a scene based on power consumption?

**URL:** <https://forum.ewelink.cc/t/when-do-i-trigger-a-scene-based-on-power-consumption/176259>\
**Category:** Ideas & Suggestion\
**Created:** [May 24, 2025, 6:02pm UTC](https://forum.ewelink.cc/t/when-do-i-trigger-a-scene-based-on-power-consumption/176259 "2025-05-24T18:02:10Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![fjavierdolores](https://avatars.discourse-cdn.com/v4/letter/f/b5e925/32.png) [@fjavierdolores](https://forum.ewelink.cc/u/fjavierdolores)\
**Post date:** [May 24, 2025, 6:02pm UTC](https://forum.ewelink.cc/t/when-do-i-trigger-a-scene-based-on-power-consumption/176259/1 "2025-05-24T18:02:10Z")

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For example, on a DualR3 channel.

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**Author:** ![jam3](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.ewelink.cc/jam3/32/7918_2.png) [@jam3](https://forum.ewelink.cc/u/jam3)\
**Post date:** [May 25, 2025, 6:08am UTC](https://forum.ewelink.cc/t/when-do-i-trigger-a-scene-based-on-power-consumption/176259/2 "2025-05-25T06:08:09Z")

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What would such a scene be performing?

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**Author:** ![fjavierdolores](https://avatars.discourse-cdn.com/v4/letter/f/b5e925/32.png) [@fjavierdolores](https://forum.ewelink.cc/u/fjavierdolores)\
**Post date:** [May 25, 2025, 10:31am UTC](https://forum.ewelink.cc/t/when-do-i-trigger-a-scene-based-on-power-consumption/176259/3 "2025-05-25T10:31:13Z")

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With the DualR3, due to power limitations, I can monitor an ornamental ignition that I can’t automate, and turn on other lights, for example. With the Earu DIN rail meters, I can create a charging traffic light with a GU12 RGB bulb. I currently do this with Home Assistant, but not with eWeLink without resorting to IFFT.

With Tuya, it works perfectly.

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**Author:** ![spoustaml](https://avatars.discourse-cdn.com/v4/letter/s/a4c791/32.png) [@spoustaml](https://forum.ewelink.cc/u/spoustaml)\
**Post date:** [May 25, 2025, 10:34am UTC](https://forum.ewelink.cc/t/when-do-i-trigger-a-scene-based-on-power-consumption/176259/4 "2025-05-25T10:34:31Z")

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It could perform a safety function, imagine that you start the pump to empty the tank and rely only on the contactor being switched on, but the pump is broken, it stops and no water is pumped. If you saw any power, the system could evaluate whether everything is fine or, conversely, something is wrong.

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**Author:** ![fjavierdolores](https://avatars.discourse-cdn.com/v4/letter/f/b5e925/32.png) [@fjavierdolores](https://forum.ewelink.cc/u/fjavierdolores)\
**Post date:** [May 25, 2025, 10:39am UTC](https://forum.ewelink.cc/t/when-do-i-trigger-a-scene-based-on-power-consumption/176259/5 "2025-05-25T10:39:33Z")

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> [@spoustaml](#):
>
> It could perform a safety function, imagine that you start the pump to empty the tank and rely only on the contactor being switched on, but the pump is broken, it stops and no water is pumped. If you saw any power, the system could evaluate whether everything is fine or, conversely, something is wrong.

Correct, it would be possible to monitor consumption to confirm proper operation. An open-circuit motor has zero consumption, and if it’s overloaded, it could be due to a locked rotor or some other reason.