Wiring up a current limiting resistor with an IR LED burns of the LED - Electrical Engineering Stack Exchange
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IR LED control no resistor - CircuitLab
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Dc 4.5v-5v Photo Control Led Lamp Practice Soldering Diy Kit Built-in Photo Resistor Sensor Con-18 Infrared Remote Control - Led Bulbs & Tubes - AliExpress
LED Resistor Calculator - Inch Calculator
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Amazon.com: DORHEA 2 Pcs Infrared LED Light Board Module for Raspberry Pi Camera Night Vision, 3W 850 IR High Power Night Vision Infrared Illuminator with Adjustable Resistor for Raspberry Pi Camera : Electronics
microcontroller - (Infrared LED Circuit) Can i use this circuit with 3.3v logic? - Electrical Engineering Stack Exchange
Best IR LED Circuit - LEDs and Multiplexing - Arduino Forum
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Activity 1: Build and Test the Object Detectors | LEARN.PARALLAX.COM
Intro to IR Circuits : 9 Steps (with Pictures) - Instructables
