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Electrobot 20pcs 5mm 940nm Infrared emitter & receiver diode IR LED | Infrared LED | Infrared Sensor for Arduino (10 Pairs) : Amazon.in: Industrial & Scientific
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IR Proximity Sensor An infrared sensor with parallel infrared LED and... | Download Scientific Diagram
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Super-bright 5mm IR LED [940nm] : ID 387 : $0.75 : Adafruit Industries, Unique & fun DIY electronics and kits
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