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Author Topic: Short range sensor  (Read 326 times)
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Portugal
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Hi!
I want to count car miniatures passing in a narrow path ( 5 to 10 cm).
What kind of sensor could i use in this situations?
Thanks
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Montreal
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Per aspera ad astra.
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Infra Red (IR) , here just an example: http://www.adafruit.com/products/466
If you can mount LED behind the object and Photodiode on the other side,  than you may use cheap version of light-beam breaker
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Portugal
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Something like this, for the cheap version?
http://www.ranchbots.com/club/papers/Beam_break_sensor.pdf
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