Best automation for keeping house cool

The best automation I have made recently is one to close the blinds in my conservatory once it reaches 21c and send me a notification if the window between the house and conservatory is open so I can close it

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@djh1997 Love this setup—closing blinds on a temperature threshold is one of those “set it and forget it” automations that actually saves comfort and energy.

If you want to refine it with Aqara gear, two common patterns you can build on:

  • Close shades based on brightness + heat: using a Motion Sensor P2’s light sensor plus a climate/temperature sensor, you can close curtains/shades when it’s bright (e.g., >500 lux) and hot, which helps prevent the room from heating up in the first place.
  • Door/window-aware actions: pairing a Door & Window Sensor P2 with your setup is a nice way to detect “open window/door = stop cooling / take action.” For example, you can trigger actions to reduce energy waste when a door/window is opened (like turning down HVAC/thermostat) or use “door open” as a condition to drive curtain position.

This information comes from community discussions and user experience summaries and may vary by environment. Please verify carefully.
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Out of curiosity—what are you using for the “21°C” trigger right now (Aqara climate sensor, thermostat reading, or a 3rd-party temp source)?

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