Pololu Analog Distance Sensor 10-150cm

/*The Pololu Analog Distance Sensor 10-150cm is a non-contact distance sensor that uses infrared (IR) radiation to measure the distance of an object. Here's an example code in Arduino that reads the distance from the sensor:
Note: This code assumes that the Pololu Analog Distance Sensor is connected to pin A0 of the Arduino board. If you're using a different pin, you'll need to modify the SENSOR_PIN definition accordingly. Also, the equation used to calculate the distance was determined experimentally, so you may need to adjust it for your specific sensor.
*/

const int SENSOR_PIN = A0;  // the pin connected to the sensor
float voltage;  // the voltage reading from the sensor
float distance;  // the distance calculated from the voltage

void setup() {
  Serial.begin(9600);

  pinMode(SENSOR_PIN, INPUT);
}

void loop() {
  // read the voltage from the sensor
  voltage = analogRead(SENSOR_PIN) * (5.0 / 1023.0);

  // calculate the distance to the object in centimeters
  distance = 27.86 * pow(voltage, -1.15);

  // print the distance to the object
  Serial.print("Distance: ");
  Serial.print(distance);
  Serial.println(" cm");

  // delay before reading from the sensor again
  delay(1000);
}