Visual motion detection: the answers

In the Settings menu, select Visual movement and adjust the sensitivity with the slider buttons.

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Threshold: sets the level at which actions are triggered. The lower it is, the more sensitive the movement recognition.

Pixel difference: pixel sensitivity is defined by the difference in value between two samples. The lower it is, the more sensitive the movement detection. This setting compensates for the grain produced by the cameras.

Sample size: the larger it is, the more precise the measurement. On the other hand, the computing load can heat the device and affect battery life.

Use 2 cameras: for 360-degree movement capture.

Plug a USB power cable with its charger into your old smartphone (models from 2010 to the present day).

Note: in that case, place your old smartphone near a power outlet before launching the application and pairing it with your everyday smartphone. See how to pair two smartphones.

Choose the position of the sensor device (smartphone or otherwise) carefully.

For movement detection by the device camera, it is advisable to aim the camera into the interior of the property, with its back to the window, in order to avoid false detections: outside movement in the street, or movement caused by wind, trees, leaves and so on.

Also take care not to overhang the public space and to respect privacy: the legal framework is set out in our Legal questions FAQ.