# Trigger for a sudden rise in temperature

**URL:** <https://community.homey.app/t/trigger-for-a-sudden-rise-in-temperature/153365>\
**Category:** Questions & Help\
**Created:** [April 4, 2026, 9:51am UTC](https://community.homey.app/t/trigger-for-a-sudden-rise-in-temperature/153365 "2026-04-04T09:51:08Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Marcus\_Bitterling](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/marcus_bitterling/32/80103_2.png) [@Marcus\_Bitterling](https://community.homey.app/u/Marcus_Bitterling)\
**Post date:** [April 4, 2026, 9:51am UTC](https://community.homey.app/t/trigger-for-a-sudden-rise-in-temperature/153365/1 "2026-04-04T09:51:08Z")

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I’m looking for a flow to detect a sudden rise in temperature. I have a temperature sensor attached to the hot water plumbing connected to a smart implant and I want it to detect hot water usage.

I’ve attached a picture of Insights to clarify it. So I’m looking to detect the peaks so perhaps a flow that can temperature change in a short period of time. Is it possible?

 ![IMG_6402](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/1/1/11583119a2590c84d7bc1b0352afa7b64eaa90e4.jpeg)

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**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\
**Post date:** [April 4, 2026, 1:12pm UTC](https://community.homey.app/t/trigger-for-a-sudden-rise-in-temperature/153365/2 "2026-04-04T13:12:20Z")

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This is a way to detect it, Marcus.

Both cards of the [Device Capabilities app](https://community.homey.app/t/app-pro-device-capabilities-enhance-the-capabilities-of-devices/43287) retreive a value from a device from the last updated value, and from the same device the same value from a certain time ago, being 1 minute in this example.  
Example device is called “Temp buiten”;  
Example capability value is called “Temperature”.

 ![1321](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/a/a/aafbc34b1e6c0e3b0eff3e094b4afbdd55c64151.jpeg)

The `10` in the logics card comparison is just a random number, which is added to the value of the ‘normal’ temperature as it was a minute ago.  
Meaning: when the temperature suddenly increases by 10°C within one minute, do something

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<div class="post-metadata">

**Author:** ![Marcus\_Bitterling](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/marcus_bitterling/32/80103_2.png) [@Marcus\_Bitterling](https://community.homey.app/u/Marcus_Bitterling)\
**Post date:** [April 4, 2026, 3:26pm UTC](https://community.homey.app/t/trigger-for-a-sudden-rise-in-temperature/153365/3 "2026-04-04T15:26:50Z")

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Thanks Peter!

I’ll give it a try.

Vrolijk Pasen 🐣