Proximity-Sensing LEDs : 7 Steps (with Pictures) - Instructables
LED Resistor Calculator
Driving an IR LED: constant current source or not – Arduino, ESP8266, ESP32 & Raspberry Pi stuff
The electronic circuit connecting the phototransistor and an IR LED to... | Download Scientific Diagram
IR Emitter LED 940nm 5mm (5-Pack) - ProtoSupplies
Extend IR Led Range - Raspberry Pi Forums
Reflective Infrared IR Optical Sensor with 470 and 10K Resistors : ID 2349 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Resistors for LED Circuits | Resistor Applications | Resistor Guide
![Amazon.com: Adafruit Super-bright 5mm IR LED (25 pack) [ADA388] : Electronics](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/411XdshY6jL.jpg "Amazon.com: Adafruit Super-bright 5mm IR LED (25 pack) [ADA388] : Electronics")
Amazon.com: Adafruit Super-bright 5mm IR LED (25 pack) [ADA388] : Electronics
DIY - IR Module | Hackaday.io
Wiring up the infrared LED | Infrared Bird Box | Coding projects for kids and teens
infrared - Understanding voltage and current of a phototransistor w/ collector resistor - Electrical Engineering Stack Exchange
Control LEDs Using IR Remote and Arduino
arduino - Why use a transistor to drive an LED? - Electrical Engineering Stack Exchange
How to Connect an IR Photodiode Sensor in a Circuit | Homemade Circuit Projects
IR-Photo Diode Sensor | forElectronics
5 Pairs Side Looking 940nm IR LED Pair Phototransistor SGPT4045 & LED SIR4045 | eBay
Infrared Obstacle Detector for Less Than $1 — Maker Portal
Generating a 36kHz carrier signal for use in a IR LED array using UNO - LEDs and Multiplexing - Arduino Forum
Activity 1: Build and Test the Object Detectors | LEARN.PARALLAX.COM
IR LED control no resistor - CircuitLab
Arduino Tv-b-gone IR led Amp - adafruit industries
DIY TiVo IR Blaster | IR LED + 1k resistor | Jeff Keyzer | Flickr
