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Infrared Proximity Sensor (3–80 cm)
E18‑D80NK Adjustable Infrared Proximity Sensor (3–80 cm)
Overview:
The E18‑D80NK is an adjustable infrared proximity sensor ideal for obstacle detection and automation. It includes both IR emitter and receiver, with a threaded cylindrical housing and built-in potentiometer to set the detection range between 3 and 80 cm.
Key Features:
Operating Voltage: 5 V DC
Detection Range: Adjustable from 3 to 80 cm
Output: Open-collector NPN (active LOW when object detected)
Current Consumption: Typically 25–30 mA, up to 100 mA max
Built-in indicator LED lights when detection is active
Passive modulation reduces interference from ambient light sources
Threaded body (Ø17 mm) + 2 nuts enables secure panel mounting
Technical Specifications:
| Parameter | Value |
|---|---|
| Input Voltage | 5 V DC |
| Current Consumption | 25–100 mA |
| Detection Range | 3–80 cm (adjustable via potentiometer) |
| Output Type | NPN open-collector, digital LOW when triggered |
| Cable Length | ~45 cm |
| Response Time | < 2 ms |
| Operating Temperature | –25 °C to +55 °C |
| Dimensions | Ø17 mm × ~45 mm |
Pinout (3-Conductor Cable):
Red/Brown – +5 V
Green/Blue – GND
Yellow/Black – Digital Output (open-collector, active LOW)
Wiring Example (Arduino Uno):
Connect the sensor's output pin to a digital input pin on your Arduino (e.g., D7), with the sensor powered by 5 V and GND. The output is normally HIGH and goes LOW upon detection.
Applications:
Obstacle detection in mobile robots
Item counter in production lines
Machine automation triggers
Security or presence detection
Parking sensors and collision avoidance
Resources:
📄 Datasheet & Technical Manual:
E18‑D80NK Infrared Proximity Sensor Datasheet