Driving an IR LED: constant current source or not – Arduino, ESP8266, ESP32 & Raspberry Pi stuff
Light-Emitting Diodes (LEDs) - SparkFun Learn
DIY - IR Module : 12 Steps (with Pictures) - Instructables
Generating a 36kHz carrier signal for use in a IR LED array using UNO - LEDs and Multiplexing - Arduino Forum
IV curves | LEDnique
Product Document
IR LED Pinout, Features, Uses & Datasheet
batteries - 9V powering to the safest maximum brightness of 4 IR LEDs in series - Electrical Engineering Stack Exchange
voltage - Help reading IR LED datasheet - Electrical Engineering Stack Exchange
IR LED: A resistor is needed even when the current isn't enough? : r/arduino
Pulse Circuits for Infrared LEDs and Visible Diode Lasers
DIY - IR Module | Details | Hackaday.io
Constant current infrared LED emitter circuit - AnalysIR Blog | Constant current, Circuit, Ir led
Ir led low range - General Electronics - Arduino Forum
Powering modulated IR LEDs with more current than Arduino outputs can supply - General Electronics - Arduino Forum
Build your own Intervalometer / Camera Trigger - IR triggers.
infrared - Understanding voltage and current of a phototransistor w/ collector resistor - Electrical Engineering Stack Exchange
What is the output of an IR receiver LED (I mean voltage, current or variable resistance)? - Quora
IR (Infrared) Obstacle Detection Sensor Circuit
How to Build an IR LED Circuit
Basics of IR Sensor | IR LED Pin Diagram & Working
power supply - Is this IR LED driver circuit with a transistor OK? - Electrical Engineering Stack Exchange
How much voltage to give my IR LED? - Electrical Engineering Stack Exchange
Estimating IR LED operating current - Electrical Engineering Stack Exchange
IR LED control no resistor - CircuitLab
