resistors - Using 25 IR LEDs with Raspberry Pi and Transistor - Electrical Engineering Stack Exchange
The electronic circuit connecting the phototransistor and an IR LED to... | Download Scientific Diagram
DIY — IR Module. A sensor is a device that detects and… | by DIY Factory | Medium
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Infrared Obstacle Detector for Less Than $1 — Maker Portal
Vishay Infrared LED (IR Emitter) 5mm for Wii Whiteboard Pen IR USA: Amazon.com: Industrial & Scientific
Build the IR Circuits | LEARN.PARALLAX.COM
Infrared LEDs
IR Emitter LED 940nm 5mm (5-Pack) - ProtoSupplies
Build the IR Circuits | LEARN.PARALLAX.COM
Reflective Infrared IR Optical Sensor with 470 and 10K Resistors : ID 2349 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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Best IR LED Circuit - LEDs and Multiplexing - Arduino Forum
SparkFun Max Power IR LED Kit - KIT-10732 - SparkFun Electronics
IR LED control no resistor - CircuitLab
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Driving an IR LED: constant current source or not – Arduino, ESP8266, ESP32 & Raspberry Pi stuff
