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Motion detecting device

Motion uses a video4linux device for detecting movement. It makes snapshots of the movement which can later be converted to MPEG movies, making it usable as an observation or security system. It can send out email and SMS messages or execute an external command when detecting motion. If a change is detected a snapshot will be taken. There is a working device list on the home page to check if your device will work with 'motion.' You can also feed video back to a video4linux loopback for realtime viewing. The program can also take snapshots at regular or irregular intervals using cron.


User manpages included; User guide available in HTML format from


version 4.0.1 (stable)
released on 25 October 2016


Related Projects



Verified by

Verified on


Verified by

Janet Casey

Verified on

17 October 2000

Leaders and contributors

Jeroen Vreeken Maintainer
Full list is in the CREDITS file Contributor

Resources and communication

AudienceResource typeURI
Bug Tracking,Developer,Help,
Debian (Ref)
Python (Ref)
Ruby (Ref)

Software prerequisites

Weak prerequisiteBerkeley mpeg encoder (to create mpeg movies; available from
Weak prerequisitevideo loopback device (available from

This entry (in part or in whole) was last reviewed on 16 April 2018.


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