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Results tagged with infrared
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user 53730
IR is electromagnetic radiation with wavelengths from about 750 nm to 1000 µm, which is beyond the nominal red edge of the visible spectrum.
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What is the cheapest sensor that can detect a wall regardless of color?
There is two simple ways,
1.Direct use of ultrasonic sensor should do the job.
2.Configuring basic IR sensor with filters which can be used as Obstacle detector .
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