E18-D80NK Infrared Sensor Module

Overview

The E18-D80NK Infrared Sensor Module is a photoelectric proximity sensor used to detect objects without physical contact.

It is widely used in:

• Robotics (obstacle avoidance)

• Automation systems

• Object detection systems

Working Principle

• The sensor emits infrared (IR) light

• When an object comes in front light reflects back

• The receiver detects this reflection

• Output changes accordingly

This is called a diffuse reflective photoelectric sensor

Infographic Summary

a Detects: Objects Voltage: 5V DC Range: 380 cm Output: Digital (NPN) Type: IR Reflective Adjustable distance

Pin Configuration

E18-D80NK Red VCC (5V) -25C to 55C

Key Features

• Long detection range (up to 80 cm)

• Adjustable sensitivity (via screw)

• Fast response

• Easy to mount cylindrical design

• Low cost and reliable

• Less affected by ambient light

Working Logic

(May vary depending on wiring and module type)

Applications

• Robot obstacle avoidance

• Automatic door systems

• Object counting systems

• Conveyor belt detection

• Parking sensors (basic)

• ESP32 / ESP8266

• Raspberry Pi

Connect output to a digital input pin

Important Notes

• Detection depends on object color & surface

• Not good for transparent objects (glass, water)

• Requires proper alignment for best results

• High current compared to small IR modules

Real-world tip:

White objects reflect better longer detection range

E18-D80NK vs HC-SR04

ly higher

Pro Tip

For best performance:

• Adjust the potentiometer for required range

• Use in indoor environments for stability

• Combine with microcontroller + buzzer/LED for alerts

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