E18-D80NK Infrared เซ็นเซอร์อินฟาเรด (์ไม่มี Connector NC)

/*  

    Arduino with Test B027 Infrared Obstacle Avoidance Sensor Modul sensor distance

    For complete project details, visit:Arduinoshop99

*/

int led = 13;                // the pin that the LED is atteched to

int sensor = 2;              // the pin that the sensor is atteched to

int state = HIGH;             // by default, no motion detected

int val = 0;                 // variable to store the sensor status (value)

 void setup() {

  pinMode(led, OUTPUT);      // initalize LED as an output

  pinMode(sensor, INPUT);    // initialize sensor as an input

  Serial.begin(115200);        // initialize serial

}

 void loop(){

  val = digitalRead(sensor);   // read sensor value

  if (val == LOW) {           // check if the sensor is LOW 

    digitalWrite(led, LOW);   // turn LED OFF

    delay(100);                // delay 100 milliseconds 

       if (state == HIGH) {

      Serial.println(" Warning Detect "); 

       Serial.println(""); 

      state = LOW;       // update variable state to C

    }  } 

  else {

      digitalWrite(led, HIGH); // turn LED ON

      delay(200);             // delay 200 milliseconds 

       if (state == LOW){

        Serial.println("Clear OK");

        Serial.println("");

         state = HIGH;       // update variable state to HIGH

    }

  }

}