# Aqara fp400

**URL:** <https://community.homey.app/t/aqara-fp400/159762>\
**Category:** Devices\
**Created:** [September 18, 2026, 9:40pm UTC](https://community.homey.app/t/aqara-fp400/159762 "2026-09-18T21:40:59Z")\
**Posts on this page:** 1\
**Showing post:** 15

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**Author:** ![SunBeech](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sunbeech/32/111391_2.png) [@SunBeech](https://community.homey.app/u/SunBeech)\
**Post date:** [September 23, 2026, 7:48pm UTC](https://community.homey.app/t/aqara-fp400/159762/15 "2026-09-23T19:48:09Z")

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Thanks for the video 👍.

By the way (not sure whether relevant and just a thought):

If you are looking for a way to determine whether someone is in bed to set the sleep state in Homey, consider using a car seat occupancy sensor (+/- $5-10 on AliExpress) connected to an Aqara T1 water leak sensor. It has screws on the bottom to which you can connect the occupancy sensor cables.

The water sensor acts as a binary (Zigbee) sensor. Place the occupancy sensor under the sheets midway on the mattress. Use a flow to set the sleep state based on the water sensor’s alarm and fine-tune it (e.g. only set to sleep after 21:00 o’clock).

> [@How can I handle wake/sleep status automatically?](https://community.homey.app/t/how-can-i-handle-wake-sleep-status-automatically/131745/11):
>
> The two terminals are normally used to detect water: in case of a leak the water completes the circuit between the two terminals (located at the bottom of the sensor). Since these screw terminals are easily accessible, you can also connect other things to it. The water sensor basically acts as a binary sensor: completed circuit = alarm on; incomplete circuit = alarm off. Both the pressure mat and seat occupancy sensor have two wires that you can connect to the terminals. Then, whe…

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