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10pairs 3mm 5mm 940nm Leds Infrared Emitter And Ir Receiver Diode Diodes 301a For Arduino - Diodes - AliExpress
![arduino - Using IR LED and photodiode to estimate range and bearing of other Swarm Robots - Robotics Stack Exchange arduino - Using IR LED and photodiode to estimate range and bearing of other Swarm Robots - Robotics Stack Exchange](https://i.stack.imgur.com/HJKz0.png)
arduino - Using IR LED and photodiode to estimate range and bearing of other Swarm Robots - Robotics Stack Exchange
![Amazon.com: Gikfun 5mm 940nm LEDs Infrared Emitter and IR Receiver Diode for Arduino (Pack of 20pcs) EK8443 : Industrial & Scientific Amazon.com: Gikfun 5mm 940nm LEDs Infrared Emitter and IR Receiver Diode for Arduino (Pack of 20pcs) EK8443 : Industrial & Scientific](https://m.media-amazon.com/images/I/41d6hiNHnGL._AC_SY580_.jpg)
Amazon.com: Gikfun 5mm 940nm LEDs Infrared Emitter and IR Receiver Diode for Arduino (Pack of 20pcs) EK8443 : Industrial & Scientific
![The electronic circuit connecting the phototransistor and an IR LED to... | Download Scientific Diagram The electronic circuit connecting the phototransistor and an IR LED to... | Download Scientific Diagram](https://www.researchgate.net/publication/321301283/figure/fig1/AS:564916650496000@1511698033367/The-electronic-circuit-connecting-the-phototransistor-and-an-IR-LED-to-an-Arduino-Uno.png)