홀로 떠나는 여행

int ir = 0;

void setup()

{

  analogReference(DEFAULT);

  Serial.begin(9600);

  pinMode (ir, INPUT);

}

void loop()

{

  int raw=analogRead(ir);

  int volt=map(raw, 0, 1023, 0, 5000);

  int cm=(21.61/(volt-0.1696))*1000;

  Serial.println(cm);  

  }

int IRpin = 1;                                    // analog pin for reading the IR sensor

void setup() {
  Serial.begin(9600);                             // start the serial port
}

void loop() {
  float volts = analogRead(IRpin)*0.0048828125;   // value from sensor * (5/1024) - if running 3.3.volts then change 5 to 3.3
  float distance = 65*pow(volts, -1.10);          // worked out from graph 65 = theretical distance / (1/Volts)S - luckylarry.co.uk
  Serial.println(distance);                       // print the distance
  delay(100);                                     // arbitary wait time.
}
[출처] GP2Y0A41SK0F 적외선 거리센서 with 아두이노|작성자 roboholic84