Introduction

The Sharp Optical Dust Sensor (GP2Y1010AU0F) is especially effective in detecting very fine particles like cigarette smoke, and is commonly used in air purifier systems.

An infrared emitting diode and a phototransistor are diagonally arranged into this device, to allow it to detect the reflected light of dust in air.

The air sensor has a very low current consumption (20mA max, 11mA typical), and can be powered with up to 7VDC. The output of the sensor is an analog voltage proportional to the measured dust density, with a sensitivity of 0.5V/0.1mg/m3.

Specification

• Supply voltage: 5-7V
• Operating temperature: -10-65 Celsius degree
• Consumption current:20mA max

Diagram

Aruduino Pin Map

Sample Code

/*!
 * @file  SEN0144.ino
 * @brief Standalone Sketch to use with a Arduino UNO and a
 * @n Sharp Optical Dust Sensor GP2Y1010AU0F
 * @copyright  Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com)
 * @license  The MIT License (MIT)
 * @author  DFRobot
 * @version  V3.0
 * @date  2023-08-03
 */

/**user define**/
int voutPin = A0;  //Connect Vo of dust sensor Vo to Arduino A0 pin
int ledPin = 2;    //Connect LED(3pin) of dust sensor to Arduino D2 pin

/**system define**/
int samplingTime = 280;
int deltaTime = 40;
int sleepTime = 9680;
int voMeasured = 0;
float calcVoltage = 0;
float dustDensity = 0;


void setup()
{
  Serial.begin(9600);
  pinMode(ledPin,OUTPUT);
}


void loop()
{
  digitalWrite(ledPin,LOW); // power on the LED
  delayMicroseconds(samplingTime);

  voMeasured = analogRead(voutPin); // read the dust value

  delayMicroseconds(deltaTime);
  digitalWrite(ledPin,HIGH); // turn the LED off
  delayMicroseconds(sleepTime);

  // 0 - 5V mapped to 0 - 1023 integer values
  // recover voltage
  calcVoltage = (float)voMeasured * (5.0 / 1024.0);

  // linear eqaution taken from http://www.howmuchsnow.com/arduino/airquality/
  // Chris Nafis (c) 2012
  if ( calcVoltage >= 0.6 ) {
      dustDensity = 0.17 * calcVoltage - 0.1;
  } else {
      dustDensity = 0;
  }

  Serial.print("Raw Signal Value (0-1023): ");
  Serial.print(voMeasured);

  Serial.print(" - Voltage: ");
  Serial.print(calcVoltage);
  Serial.print("V");

  Serial.print(" - Dust Density: ");

  if( calcVoltage > 3.5 ) {
     Serial.print(">");  // unit: mg/m3
  }

  Serial.print(dustDensity);
  Serial.println(" mg/m3");

  delay(1000);
}

Category: DFRobot > Sensors & Modules > Sensors >Air Sensors