int Lane1[] = {13, 12, 11}; // Lane 1 Red, Yellow and Green
int Lane2[] = {10, 9, 8};   // Lane 2 Red, Yellow and Green
int Lane3[] = {7, 6, 5};    // Lane 3 Red, Yellow and Green
int Lane4[] = {4, 3, 2};    // Lane 4 Red, Yellow and Green
String lanes ; // Input word

void setup()
{
  Serial.begin(9600); // Initialize serial communication
    
  for (int i = 0; i < 3; i++)
  {
    pinMode(Lane1[i], OUTPUT);
    pinMode(Lane2[i], OUTPUT);
    pinMode(Lane3[i], OUTPUT);
    pinMode(Lane4[i], OUTPUT);
  }
  for (int i = 0; i < 3; i++)
  {
    digitalWrite(Lane1[i], LOW);
    digitalWrite(Lane2[i], LOW);
    digitalWrite(Lane3[i], LOW);
    digitalWrite(Lane4[i], LOW);
  }
}

void loop()
{
  
  lanes = "v1";
    if (lanes == "v1")
    {
      digitalWrite(Lane1[2], HIGH); // Green light for Lane 1
      digitalWrite(Lane3[0], HIGH); // Red light for Lane 3
      digitalWrite(Lane4[0], HIGH); // Red light for Lane 4
      digitalWrite(Lane2[0], HIGH); // Red light for Lane 2
      delay(10000); // Green light duration for Lane 1
      digitalWrite(Lane1[2], LOW);
      digitalWrite(Lane2[0], LOW);
      digitalWrite(Lane2[1], HIGH);
      digitalWrite(Lane1[1], HIGH);
      delay(3000);
      digitalWrite(Lane2[1], LOW);
      digitalWrite(Lane1[1], LOW);
      digitalWrite(Lane1[0], HIGH);
      digitalWrite(Lane2[2], HIGH);
      delay(7000);
      digitalWrite(Lane2[2], LOW);
      digitalWrite(Lane3[0], LOW);
      digitalWrite(Lane3[1], HIGH);
      digitalWrite(Lane2[1], HIGH);
      delay(3000);
      digitalWrite(Lane3[1], LOW);
      digitalWrite(Lane2[1], LOW);
      digitalWrite(Lane3[2], HIGH);
      digitalWrite(Lane2[0], HIGH);
      delay(7000);
      digitalWrite(Lane3[2], LOW);
      digitalWrite(Lane4[0], LOW);
      digitalWrite(Lane4[1], HIGH);
      digitalWrite(Lane3[1], HIGH);
      delay(3000);
      digitalWrite(Lane4[1], LOW);
      digitalWrite(Lane3[1], LOW);
      digitalWrite(Lane4[2], HIGH);
      digitalWrite(Lane3[0], HIGH);
      delay(7000);
      digitalWrite(Lane4[2], LOW);
      digitalWrite(Lane1[0], LOW);
      digitalWrite(Lane1[1], HIGH);
      digitalWrite(Lane4[1], HIGH);
      delay(3000);
      digitalWrite(Lane4[1], LOW);
      digitalWrite(Lane1[1], LOW);
      digitalWrite(Lane2[0], HIGH);
      digitalWrite(Lane1[0], HIGH);
      digitalWrite(Lane3[0], HIGH);
      digitalWrite(Lane4[0], HIGH);
    }
    else if (lanes == "v2")
    {
      digitalWrite(Lane1[2], HIGH); // Green light for Lane 1
      digitalWrite(Lane3[0], HIGH); // Red light for Lane 3
      digitalWrite(Lane4[0], HIGH); // Red light for Lane 4
      digitalWrite(Lane2[0], HIGH); // Red light for Lane 2
      delay(7000); // Green light duration for Lane 1
      digitalWrite(Lane1[2], LOW);
      digitalWrite(Lane2[0], LOW);
      digitalWrite(Lane2[1], HIGH);
      digitalWrite(Lane1[1], HIGH);
      delay(3000);
      digitalWrite(Lane2[1], LOW);
      digitalWrite(Lane1[1], LOW);
      digitalWrite(Lane1[0], HIGH);
      digitalWrite(Lane2[2], HIGH);
      delay(10000);
      digitalWrite(Lane2[2], LOW);
      digitalWrite(Lane3[0], LOW);
      digitalWrite(Lane3[1], HIGH);
      digitalWrite(Lane2[1], HIGH);
      delay(3000);
      digitalWrite(Lane3[1], LOW);
      digitalWrite(Lane2[1], LOW);
      digitalWrite(Lane3[2], HIGH);
      digitalWrite(Lane2[0], HIGH);
      delay(7000);
      digitalWrite(Lane3[2], LOW);
      digitalWrite(Lane4[0], LOW);
      digitalWrite(Lane4[1], HIGH);
      digitalWrite(Lane3[1], HIGH);
      delay(3000);
      digitalWrite(Lane4[1], LOW);
      digitalWrite(Lane3[1], LOW);
      digitalWrite(Lane4[2], HIGH);
      digitalWrite(Lane3[0], HIGH);
      delay(7000);
      digitalWrite(Lane4[2], LOW);
      digitalWrite(Lane1[0], LOW);
      digitalWrite(Lane1[1], HIGH);
      digitalWrite(Lane4[1], HIGH);
      delay(3000);
      digitalWrite(Lane4[1], LOW);
      digitalWrite(Lane1[1], LOW);
      digitalWrite(Lane2[0], HIGH);
      digitalWrite(Lane1[0], HIGH);
      digitalWrite(Lane3[0], HIGH);
      digitalWrite(Lane4[0], HIGH);
    }
    else if (lanes == "v3")
    {
      digitalWrite(Lane1[2], HIGH); // Green light for Lane 1
      digitalWrite(Lane3[0], HIGH); // Red light for Lane 3
      digitalWrite(Lane4[0], HIGH); // Red light for Lane 4
      digitalWrite(Lane2[0], HIGH); // Red light for Lane 2
      delay(7000); // Green light duration for Lane 1
      digitalWrite(Lane1[2], LOW);
      digitalWrite(Lane2[0], LOW);
      digitalWrite(Lane2[1], HIGH);
      digitalWrite(Lane1[1], HIGH);
      delay(3000);
      digitalWrite(Lane2[1], LOW);
      digitalWrite(Lane1[1], LOW);
      digitalWrite(Lane1[0], HIGH);
      digitalWrite(Lane2[2], HIGH);
      delay(7000);
      digitalWrite(Lane2[2], LOW);
      digitalWrite(Lane3[0], LOW);
      digitalWrite(Lane3[1], HIGH);
      digitalWrite(Lane2[1], HIGH);
      delay(3000);
      digitalWrite(Lane3[1], LOW);
      digitalWrite(Lane2[1], LOW);
      digitalWrite(Lane3[2], HIGH);
      digitalWrite(Lane2[0], HIGH);
      delay(10000);
      digitalWrite(Lane3[2], LOW);
      digitalWrite(Lane4[0], LOW);
      digitalWrite(Lane4[1], HIGH);
      digitalWrite(Lane3[1], HIGH);
      delay(3000);
      digitalWrite(Lane4[1], LOW);
      digitalWrite(Lane3[1], LOW);
      digitalWrite(Lane4[2], HIGH);
      digitalWrite(Lane3[0], HIGH);
      delay(7000);
      digitalWrite(Lane4[2], LOW);
      digitalWrite(Lane1[0], LOW);
      digitalWrite(Lane1[1], HIGH);
      digitalWrite(Lane4[1], HIGH);
      delay(3000);
      digitalWrite(Lane4[1], LOW);
      digitalWrite(Lane1[1], LOW);
      digitalWrite(Lane2[0], HIGH);
      digitalWrite(Lane1[0], HIGH);
      digitalWrite(Lane3[0], HIGH);
      digitalWrite(Lane4[0], HIGH);
    }
    else if (lanes == "v4")
    {
      digitalWrite(Lane1[2], HIGH); // Green light for Lane 1
      digitalWrite(Lane3[0], HIGH); // Red light for Lane 3
      digitalWrite(Lane4[0], HIGH); // Red light for Lane 4
      digitalWrite(Lane2[0], HIGH); // Red light for Lane 2
      delay(7000); // Green light duration for Lane 1
      digitalWrite(Lane1[2], LOW);
      digitalWrite(Lane2[0], LOW);
      digitalWrite(Lane2[1], HIGH);
      digitalWrite(Lane1[1], HIGH);
      delay(3000);
      digitalWrite(Lane2[1], LOW);
      digitalWrite(Lane1[1], LOW);
      digitalWrite(Lane1[0], HIGH);
      digitalWrite(Lane2[2], HIGH);
      delay(7000);
      digitalWrite(Lane2[2], LOW);
      digitalWrite(Lane3[0], LOW);
      digitalWrite(Lane3[1], HIGH);
      digitalWrite(Lane2[1], HIGH);
      delay(3000);
      digitalWrite(Lane3[1], LOW);
      digitalWrite(Lane2[1], LOW);
      digitalWrite(Lane3[2], HIGH);
      digitalWrite(Lane2[0], HIGH);
      delay(7000);
      digitalWrite(Lane3[2], LOW);
      digitalWrite(Lane4[0], LOW);
      digitalWrite(Lane4[1], HIGH);
      digitalWrite(Lane3[1], HIGH);
      delay(3000);
      digitalWrite(Lane4[1], LOW);
      digitalWrite(Lane3[1], LOW);
      digitalWrite(Lane4[2], HIGH);
      digitalWrite(Lane3[0], HIGH);
      delay(10000);
      digitalWrite(Lane4[2], LOW);
      digitalWrite(Lane1[0], LOW);
      digitalWrite(Lane1[1], HIGH);
      digitalWrite(Lane4[1], HIGH);
      delay(3000);
      digitalWrite(Lane4[1], LOW);
      digitalWrite(Lane1[1], LOW);
      digitalWrite(Lane2[0], HIGH);
      digitalWrite(Lane1[0], HIGH);
      digitalWrite(Lane3[0], HIGH);
      digitalWrite(Lane4[0], HIGH);
    }
    else
    {
       // Default behavior without any input
      digitalWrite(Lane1[2], HIGH); // Green light for Lane 1
      digitalWrite(Lane3[0], HIGH); // Red light for Lane 3
      digitalWrite(Lane4[0], HIGH); // Red light for Lane 4
      digitalWrite(Lane2[0], HIGH); // Red light for Lane 2
      delay(7000); // Green light duration for Lane 1
      digitalWrite(Lane1[2], LOW);
      digitalWrite(Lane2[0], LOW);
      digitalWrite(Lane2[1], HIGH);
      digitalWrite(Lane1[1], HIGH);
      delay(3000);
      digitalWrite(Lane2[1], LOW);
      digitalWrite(Lane1[1], LOW);
      digitalWrite(Lane1[0], HIGH);
      digitalWrite(Lane2[2], HIGH);
      delay(7000);
      digitalWrite(Lane2[2], LOW);
      digitalWrite(Lane3[0], LOW);
      digitalWrite(Lane3[1], HIGH);
      digitalWrite(Lane2[1], HIGH);
      delay(3000);
      digitalWrite(Lane3[1], LOW);
      digitalWrite(Lane2[1], LOW);
      digitalWrite(Lane3[2], HIGH);
      digitalWrite(Lane2[0], HIGH);
      delay(7000);
      digitalWrite(Lane3[2], LOW);
      digitalWrite(Lane4[0], LOW);
      digitalWrite(Lane4[1], HIGH);
      digitalWrite(Lane3[1], HIGH);
      delay(3000);
      digitalWrite(Lane4[1], LOW);
      digitalWrite(Lane3[1], LOW);
      digitalWrite(Lane4[2], HIGH);
      digitalWrite(Lane3[0], HIGH);
      delay(7000);
      digitalWrite(Lane4[2], LOW);
      digitalWrite(Lane1[0], LOW);
      digitalWrite(Lane1[1], HIGH);
      digitalWrite(Lane4[1], HIGH);
      delay(3000);
      digitalWrite(Lane4[1], LOW);
      digitalWrite(Lane1[1], LOW);
  }
 }