What Can You Automate with a Zigbee Door Sensor?

A door sensor can do much more than send an open/close alert.

With a Zigbee2MQTT door sensor, a simple door or window event can become a trigger for Home Assistant automations — turning on lights, sending security alerts, or pausing HVAC when a window is left open.

We’re curious how the community is using door sensors beyond basic security.

What’s the most useful automation you’ve built — or would like to build — with a door sensor?