Sharp_gp2y1010au_e.ino

/*
 Standalone Sketch to use with a Arduino UNO and a
 Sharp Optical Dust Sensor GP2Y1010AU0F

 does not account for read write times, redo with time interupts

*/
 
int measurePin = 0; //Connect dust sensor to Arduino A0 pin
int ledPower = 2;   //Connect 3 led driver pins of dust sensor to Arduino D2

int samplingTime = 280;
int deltaTime = 40;
int sleepTime = 9680;
 
float voMeasured = 0;
float calcVoltage = 0;
float dustDensity = 0;
 
void setup(){
  Serial.begin(9600);
  pinMode(ledPower,OUTPUT);
}
 
void loop(){
  digitalWrite(ledPower,HIGH); // power on the LED
  delayMicroseconds(samplingTime);
  
  voMeasured = analogRead(measurePin); // read the dust value
 
  delayMicroseconds(deltaTime);
  digitalWrite(ledPower,LOW); // turn the LED off
  delayMicroseconds(sleepTime);
 
  // 0 - 5V mapped to 0 - 1023 integer values
  // recover voltage
  calcVoltage = voMeasured * (5.0 / 1024.0);
 
 
  Serial.print("Voltage: ");
  Serial.print(calcVoltage);
  Serial.print('\n');
 
  // delay(1000);
}