E18-D80NK Infrared Sensor Module

E18-D80NK Infrared Sensor Module Documentation

Overview

The E18-D80NK Infrared Sensor Module is a compact, high-performance IR sensor module designed for obstacle detection, distance measurement, and gesture recognition applications. This module features a high-sensitivity IR receiver and transmitter, enabling accurate detection of objects within a range of 3-80 cm.

Technical Specifications

Operating Voltage: 5V
 Current Consumption: 20mA
 Infrared Frequency: 38 kHz
 Detection Range: 3-80 cm
 Output Signal: Digital (HIGH/LOW)
 Dimension: 20 x 15 mm

Pinout

| Pin | Function |
| --- | --- |
| VCC | Power supply (5V) |
| GND | Ground |
| OUT | Digital output (HIGH/LOW) |

Code Examples

### Example 1: Obstacle Detection using Arduino

This example demonstrates how to use the E18-D80NK Infrared Sensor Module to detect obstacles using an Arduino board.

```cpp
const int sensorPin = 2;  // Connect the OUT pin to digital pin 2 on Arduino

void setup() {
  pinMode(sensorPin, INPUT);
  Serial.begin(9600);
}

void loop() {
  int sensorState = digitalRead(sensorPin);
  if (sensorState == HIGH) {
    Serial.println("Obstacle detected!");
  } else {
    Serial.println("No obstacle detected.");
  }
  delay(50);
}
```

### Example 2: Gesture Recognition using Raspberry Pi (Python)

This example demonstrates how to use the E18-D80NK Infrared Sensor Module to recognize gestures using a Raspberry Pi and Python.

```python
import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)
sensor_pin = 17  # Connect the OUT pin to GPIO 17 on Raspberry Pi
GPIO.setup(sensor_pin, GPIO.IN)

while True:
  sensor_state = GPIO.input(sensor_pin)
  if sensor_state == 1:
    # Gesture 1: Hand wave ( rapid detection and release )
    if GPIO.input(sensor_pin) == 1 and time.time() - last_detection < 0.5:
      print("Gesture 1 detected: Hand wave")
      last_detection = time.time()
  time.sleep(0.05)
```

### Example 3: Distance Measurement using ESP32 (MicroPython)

This example demonstrates how to use the E18-D80NK Infrared Sensor Module to measure distance using an ESP32 board and MicroPython.

```python
import machine
import utime

sensor_pin = machine.Pin(14, machine.Pin.IN)  # Connect the OUT pin to GPIO 14 on ESP32

while True:
  sensor_state = sensor_pin.value()
  if sensor_state == 1:
    # Calculate distance based on pulse width ( duration of HIGH signal )
    duration = utime.ticks_diff(utime.ticks_us(), start_time)
    distance = (duration / 2) / 29  # Convert pulse width to distance (cm)
    print("Distance:", distance, "cm")
  utime.sleep_ms(50)
```

Note: These code examples are provided as a starting point and may require modifications to suit specific application requirements.