# Xiaomi/Aqara ZigBee door sensor open/close timer functionality!

**URL:** <https://community.homey.app/t/xiaomi-aqara-zigbee-door-sensor-open-close-timer-functionality/11177>\
**Category:** Questions & Help\
**Created:** [March 29, 2019, 7:04pm UTC](https://community.homey.app/t/xiaomi-aqara-zigbee-door-sensor-open-close-timer-functionality/11177 "2019-03-29T19:04:27Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![Rocodamelshekima](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rocodamelshekima/32/8209_2.png) [@Rocodamelshekima](https://community.homey.app/u/Rocodamelshekima)\
**Post date:** [March 29, 2019, 7:30pm UTC](https://community.homey.app/t/xiaomi-aqara-zigbee-door-sensor-open-close-timer-functionality/11177/4 "2019-03-29T19:30:25Z")

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Ah well. Here is the [timer app](https://apps.athom.com/app/nl.bevlogenheid.countdown).  
And [here](https://community.homey.app/t/simple-lights-turning-on-off-based-on-motion/10889) is an explanation on how to create a timer.  
The link on how to use that timer i alr gave u. Ok ok, [here](https://community.homey.app/t/door-open-thermostate-down/11043/2?u=rocodamelshe) it is again.  
Then we make:  
WHEN door sensor is open THEN start a timer for 10 minutes.  
WHEN door sensor is closed THEN stop timer.  
WHEN timer is empty THEN trigger whatever u like, like the Sonof Basic.

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