#define IR_SENSOR_1_PIN 2 // Pin for IR Sensor 1
#define IR_SENSOR_2_PIN 3 // Pin for IR Sensor 2

#define ORANGE_LIGHT_PIN 4 // Pin for Orange Light
#define RED_LIGHT_PIN 5    // Pin for Red Light
#define GREEN_LIGHT_PIN 6  // Pin for Green Light

void setup() {
  pinMode(IR_SENSOR_1_PIN, INPUT);
  pinMode(IR_SENSOR_2_PIN, INPUT);
  pinMode(ORANGE_LIGHT_PIN, OUTPUT);
  pinMode(RED_LIGHT_PIN, OUTPUT);
  pinMode(GREEN_LIGHT_PIN, OUTPUT);
}

void loop() {
  int sensor1Value = digitalRead(IR_SENSOR_1_PIN);
  int sensor2Value = digitalRead(IR_SENSOR_2_PIN);

  /*if (sensor1Value==HIGH) {
    // If an object is very close, turn on the red light.
    
    digitalWrite(ORANGE_LIGHT_PIN, HIGH);
    delay(1000);
    digitalWrite(RED_LIGHT_PIN, LOW);
    digitalWrite(GREEN_LIGHT_PIN, LOW);
    delay(1000);
  } else*/ if (sensor1Value==HIGH) {
    // If an object is closer, turn on the yellow light.
    
    digitalWrite(ORANGE_LIGHT_PIN, LOW);
    delay(1000);
    digitalWrite(RED_LIGHT_PIN, HIGH);

    delay(1000);
        digitalWrite(RED_LIGHT_PIN, LOW);
    digitalWrite(GREEN_LIGHT_PIN, HIGH);
    delay(1000);
  
  }
 /* else
  {
    digitalWrite(GREEN_LIGHT_PIN, HIGH);
  }*/
}