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Amazon.com: Adafruit Accessories IR Break Beam Sensor - 3mm LEDs (1 piece) : Industrial & Scientific
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Super-bright 5mm IR LED (25 pack) [940nm] : ID 388 : $7.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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High Power Infrared LED Emitter - IR emitter module - STEMMA JST PH 2 mm - Adafruit 5639 Botland - Robotic Shop
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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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IR Break Beam Sensor with Premium Wire Header Ends - 5mm LEDs : ID 2168 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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Arduino emits signal A (infrared) but another Arduino receives everything but A (IR-LED problem) - Arduino Stack Exchange
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Adafruit High Power Infrared LED Emitter - STEMMA JST PH 2mm : ID 5639 : $3.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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Adafruit High Power Infrared LED Emitter - STEMMA JST PH 2mm : ID 5639 : $3.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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Amazon.com: Adafruit Accessories IR Break Beam Sensor - 3mm LEDs (1 piece) : Industrial & Scientific
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Adafruit High Power Infrared LED Emitter - STEMMA JST PH 2mm : ID 5639 : $3.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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