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Roomba’s night job track | by Alexander Kachkaev
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Roomba’s night job track

Light trail left by iRobot Roomba during its first 30 minutes of cleaning.

 

A blue circle in the centre of the room is a spot that Roomba found too dirty and did some extra cleaning there. It turns blue LED on when finds such areas and rides around.

 

Red lighting is coming from microwave’s clock! The room was completely dark, however the clock sent enough photons in half an hour to illumine the wall and furniture on the photo. Violet glow in the top-right corner is just imperfection of camera’s sensor and lens.

 

One more photo: flic.kr/p/ap3MDj

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Taken on September 15, 2011