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Originally Posted by Mike AA
To put it simply THE INFRARED SENSORS WILL NOT DETECT ANYTHING OTHER THAN WHAT THEY HAVE BEEN DISIGNED FOR!
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It depends on the quality of the sensor really. I have experimented with building a LIRC-style universal IR receiver once and I can say that
some detectors are actually affected by direct sunlight and fluorescent lights. Others are not affected as much. However, even if this does happen, the demodulated data is garbage, and will never be equal to the signal sent out by the beacon. So the robot will more than likely never consider a camera or a hot motor a beacon. However, strong interference may not allow a bot to recognize a beacon. This should not be a problem, however, since the playing field is usually quite dark.