PIR Sensor Based Light Control

Very basic PIR sensor functionality can be achieved in a similar way as staircase timer functionality, simply by connecting a PIR sensor instead of a push button via a binary input. However, in real installations the end user usually expects some additional features, such as:

• Automatic disabling of the PIR sensor when a manual control of the light is detected (for example via a toggle button).

• Different light levels for different times of the day (for example reduced light level during night).

• Automatic disabling of PIR-based control during daytime, etc.

This use case introduces a more advanced solution by combining a PIR timer with a toggle button and time‑dependent automations. The resulting configuration allows automatic lighting based on occupancy, while still providing intuitive manual control and flexible light behavior depending on the time of day.

The diagram below illustrates the logical structure of the PIR-based light control solution and the interaction between its individual components.