E18-D80NK IR Obstacle Avoidance Proximity Sensor

The E18-D80NK IR Proximity Sensor is a high-performance, adjustable infrared sensor designed for long-range obstacle detection in robotics and automation systems. It integrates both an IR transmitter and receiver in a single module, enabling reliable object detection using reflected infrared signals.

Unlike basic IR modules, this sensor uses modulated infrared light, which significantly reduces interference from ambient light and sunlight, ensuring stable and accurate detection.

Key Features

• Adjustable Detection Range: Detect objects from 3cm to 80cm using built-in potentiometer
• Reliable IR Technology: Uses modulated IR signal to minimize noise and false triggering
• Long-Distance Detection: Much greater range than standard IR obstacle sensors
• Digital Output Signal: Provides HIGH/LOW output for easy microcontroller interfacing
• Compact Cylindrical Design: Easy mounting for robotics and industrial setups
• Indicator LED: Shows detection status in real-time
• Low Power Consumption: Efficient operation for battery-powered systems

Technical Specifications

• Model: E18-D80NK
• Operating Voltage: 5V DC
• Detection Range: 3cm – 80cm (adjustable)
• Output Type: NPN Normally Open (Digital Output)
• Output Current: Up to 100mA
• Current Consumption: <25mA
• Response Time: <2ms
• Detection Angle: ≤15°
• Operating Temperature: -25°C to +55°C
• Sensor Type: Diffuse reflective IR sensor

Working Principle

The sensor emits a modulated infrared beam. When an object comes within the set range, the IR light reflects back and is detected by the receiver, triggering the output signal.

• Object detected → Output changes (HIGH/LOW)
• No object → Default output state

This design allows the sensor to detect both transparent and opaque objects effectively.

Pin Configuration

• Red Wire → VCC (+5V)
• Blue Wire → GND
• Black/Yellow Wire → Digital Output (Signal)

Applications

• Robot obstacle avoidance systems
• Automatic door / hand detection systems
• Industrial automation and counting systems
• Reverse parking sensors
• Conveyor belt object detection
• Smart home automation projects

Advantages

• Longer detection range than typical IR modules
• Less affected by ambient light conditions
• Simple integration with Arduino, ESP32, and PLC systems
• Adjustable sensitivity for different use cases

Usage Tips

• Adjust the potentiometer screw to set detection distance
• Avoid very reflective or very dark surfaces for best accuracy
• Maintain proper alignment (≤15° angle) for reliable detection
• Use a pull-up resistor (if required) for stable output signal

Note: Images are for Illustration Purposes Only.