Description

The E18-D80NK is a rugged, high-performance photoelectric proximity switch engineered for autonomous mobile robots, automated conveyor belt systems, and industrial counting lines. Unlike small open-frame IR sensor modules, the E18-D80NK integrates modulated infrared optics inside a durable, threaded M18 cylindrical plastic casing. This design provides high immunity against visible ambient light interference and electrical noise.

The sensor operates on the diffuse reflection principle. It continuously emits modulated infrared pulses; when an object crosses its beam path, light reflects back to the internal receiver photodiode. The internal signal processor drives an NPN digital open-collector output—holding the signal HIGH (VCC) when clear, and pulling it LOW (0V) when an obstacle is detected within the set threshold. The effective sensing distance can be adjusted between 3 cm and 80 cm via a multi-turn trimmer screw at the rear of the housing.

Technical Specifications

Wire Color Pinout Configuration

The sensor lead features 3 color-coded wires (verify wire color codes before powering):

Basic Arduino Wiring & Example Code

Wiring Diagram

• Brown/Red (VCC) ➔ Arduino 5V

• Blue/Green (GND) ➔ Arduino GND

• Black/Yellow (OUT) ➔ Arduino Digital Pin 2 (Use internal pull-up resistor)

// E18-D80NK IR Proximity Switch Interfacing
const int sensorPin = 2; // OUT lead connected to Digital Pin 2

void setup() {
  // Use INPUT_PULLUP to ensure stable HIGH state when no obstacle is present
  pinMode(sensorPin, INPUT_PULLUP); 
  Serial.begin(9600);
  Serial.println("E18-D80NK IR Sensor Switch Initialized.");
}

void loop() {
  int sensorState = digitalRead(sensorPin);

  // Active Low Logic: LOW indicates an obstacle is present
  if (sensorState == LOW) {
    Serial.println("OBSTACLE DETECTED! Signal: LOW");
  } else {
    Serial.println("Path Clear. Signal: HIGH");
  }

  delay(150);
}

Key Features & Highlights

• Long-Range Detection (3cm to 80cm): Far superior detection range compared to standard short-range IR boards, making it ideal for high-speed obstacle avoidance.

• Ambient Light Resistance: Modulated IR pulse technology prevents false triggers caused by indoor fluorescent lighting or direct sunlight.

• Adjustable Sensitivity Screw: Embedded rear trimmer potentiometer allows exact tuning for different target sizes and reflection surfaces.

• Threaded M18 Enclosure: Easily installs into robot chassis frames, industrial brackets, or acrylic mounting plates using the included dual hex retaining nuts.

Common Applications

• Heavy-duty obstacle avoidance for competition robots, sumo bots, and AGVs.

• Object counting and presence verification on industrial assembly lines.

• Touchless automatic door openers, sanitary dispensers, and gate barriers.

• Interactive media installations, security alarms, and smart parking systems.

What’s Included in the Box

• 1 × E18-D80NK Mini Adjustable Infrared Sensor Switch (with 45cm lead)

• 2 × M18 Threaded Plastic Retaining Nuts

Why Buy From Aryabot?

• 100% Quality Assurance: Assembled with high-grade optical diodes, stable NPN switching transistors, and durable industrial enclosure materials.

• Tested & Benchmarked: Quality-checked for response speed, distance adjustment range, and output logic accuracy prior to dispatch.

• GST Invoice Provided: Tax-compliant B2B invoices generated for educational institutions, corporate research labs, and commercial deployments.

• Pan-India Express Dispatch: Fast order processing and direct delivery from our Noida fulfillment warehouse.

Features :

1. Diffuse reflective type.
2. Digital output.
3. Adjustable detection distance.
4. Low consumption.
5. Compact size.

Package Includes :

1 x E18-D80NK Mini Adjustable Infrared Sensor Switch 3-80cm.

Useful Links :

How to interface with Adjustable Infrared Sensor