The Pololu IR beacon is a compact board that is used in pairs to allow robots to locate each other. Each board has infrared emitters that shine in all directions and four IR receivers for detecting the other beacon. The IR beacons have a range of about fifteen feet indoors. This item is for a pair of beacons in one package.
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- Do the IR beacons work outside?
- Not really. Because the IR beacons are based on light, brighter ambient conditions will result in a lower operating range. Outdoor applications also usually require longer ranges, and the maximum range of these IR beacons is about 20 feet (indoors).
- Can I add IR filters to prevent interference from fluorescent lights?
- The IR sensor modules already include IR filters. The problem is that some types of fluorescent lights emit the same kind of IR as the beacons use (same light wavelength, same modulation frequency), so there’s not much you can do about it. Sometimes, shielding the sensors from direct view of the lights can be enough to make things work (that’s why they are on the bottom of the PCB).