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uxcell 10 Pcs 13/64" Slot PCB Photo Interrupter Slotted Optical Sensor Switch HY301-07A - - Amazon.com
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Pzsmocn ITR9608 Photo Sensor Compatible with Raspberry Pi/Arduino Board. for Copier, Printer, Facsimile, Ticket Vending Machine, Opto-Electronic Switch, Motor Speed Detection, Pulse Counter.: Amazon.com: Industrial & Scientific
/2%20Channels%20IR%20Reflective%20Sensor%20(TCRT5000)_1-1000x750.JPG "2 Channels IR Reflective Sensor (TCRT5000) | Makerfabs")
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How To Set Up A Photo Interrupter (or Slotted Optical) Switch On The Arduino | Utopia Mechanicus | Page 2
Opto Switches
