Surveillance Camera Known as Witness Camera

The project is an automated, self-recording surveillance camera where a gigabyte-class flash card is used as the recording media.

The Witness Camera has been built from the combination of a VGA CMOS camera, a 1GB SD car, a passive infrared movement sensor, and an AVR Mega32 microcontroller that implements a solid-state time-lapse recorder. It is a self-contained and compact surveillance system designed for home use. It is also affordable and can be built in minutes using a handful of inexpensive parts. More than one month of images can be stored for most typical domestic environments at a maximum rate of color picture every 2 seconds with 320×200 pixels or 3 seconds with 640×480 pixels.

Upon detecting a movement, the recording will start automatically. A timer can be set alternatively or supply an external trigger, or even perform continuous recording. The infrared remote control and voice-prompt menus provide easy operation and the camera needs to be setup once. New images automatically replace older ones when the card is full, in order to get the recent snapshots. No electrical power is wasted since there are no moving parts. The ITC328 is the camera module.

Rest of the project