#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);
String stat="Accident_Detected";
String stat2="Accident_not_Detected";
void setup() {
  
  for(int i=2;i<13;i++){
    pinMode(i, OUTPUT);
  }
  Serial.begin(9600);
}

void loop() {
    String msg = Serial.readStringUntil('\n');
    Serial.print("STATUS:");
    Serial.println(msg);
    if(msg.equals(stat))
    {
     lcd.init();
     lcd.backlight();
    lcd.clear();
     lcd.setCursor(0,0);
    lcd.print("Accident flagged");
    lcd.setCursor(0,1);
    lcd.print("Take other way");
    delay(1000);
   }
   else if(msg.equals(stat2))
   {
    lcd.clear();
    lcd.noBacklight();
   }
  //red
  digitalWrite(10, HIGH);

  digitalWrite(2, LOW);//4
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(9, LOW);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(8, HIGH);
    msg = Serial.readStringUntil('\n');
    Serial.print("STATUS:");
    Serial.println(msg);
    if(msg.equals(stat))
    {
     lcd.init();
     lcd.backlight();
    lcd.clear();
     lcd.setCursor(0,0);
    lcd.print("Accident flagged");
    lcd.setCursor(0,1);
    lcd.print("Take other way");
   }
   else if(msg.equals(stat2))
   {
    lcd.clear();
    lcd.noBacklight();
   }
  delay(1000);

  digitalWrite(6, LOW);//3
  digitalWrite(7, LOW);
  digitalWrite(9, LOW);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(8, HIGH);
  msg = Serial.readStringUntil('\n');
  Serial.print("STATUS:");
    Serial.println(msg);
    if(msg.equals(stat))
    {
     lcd.init();
     lcd.backlight();
    lcd.clear();
     lcd.setCursor(0,0);
    lcd.print("Accident flagged");
    lcd.setCursor(0,1);
    lcd.print("Take other way");
   }
   else if(msg.equals(stat2))
   {
    lcd.clear();
    lcd.noBacklight();
   }
  delay(1000);

  digitalWrite(4, LOW);//2
  digitalWrite(7, LOW);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(9, LOW);
  digitalWrite(8, HIGH);
  msg = Serial.readStringUntil('\n');
  Serial.print("STATUS:");
    Serial.println(msg);
    if(msg.equals(stat))
    {
     lcd.init();
     lcd.backlight();
    lcd.clear();
     lcd.setCursor(0,0);
    lcd.print("Accident flagged");
    lcd.setCursor(0,1);
    lcd.print("Take other way");
   }
   else if(msg.equals(stat2))
   {
    lcd.clear();
    lcd.noBacklight();
   }
  delay(1000);

  digitalWrite(2, LOW);//1
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);
  digitalWrite(9, LOW);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  msg = Serial.readStringUntil('\n');
  Serial.print("STATUS:");
    Serial.println(msg);
    if(msg.equals(stat))
    {
     lcd.init();
     lcd.backlight();
    lcd.clear();
     lcd.setCursor(0,0);
    lcd.print("Accident flagged");
    lcd.setCursor(0,1);
    lcd.print("Take other way");
   }
   else if(msg.equals(stat2))
   {
    lcd.clear();
    lcd.noBacklight();
   }
  delay(1000);

  digitalWrite(8, LOW);//0
  digitalWrite(9, LOW);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(7, HIGH);
  msg = Serial.readStringUntil('\n');
  Serial.print("STATUS:");
    Serial.println(msg);
    if(msg.equals(stat))
    {
     lcd.init();
     lcd.backlight();
    lcd.clear();
     lcd.setCursor(0,0);
    lcd.print("Accident flagged");
    lcd.setCursor(0,1);
    lcd.print("Take other way");
   }
   else if(msg.equals(stat2))
   {
    lcd.clear();
    lcd.noBacklight();
   }
  delay(1000);

  digitalWrite(10, LOW);
  delay(100);

  //yellow
  digitalWrite(11, HIGH);
  
  digitalWrite(4, LOW);//2
  digitalWrite(7, LOW);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(9, LOW);
  digitalWrite(8, HIGH);
  msg = Serial.readStringUntil('\n');
  Serial.print("STATUS:");
    Serial.println(msg);
    if(msg.equals(stat))
    {
     lcd.init();
     lcd.backlight();
    lcd.clear();
     lcd.setCursor(0,0);
    lcd.print("Accident flagged");
    lcd.setCursor(0,1);
    lcd.print("Take other way");
   }
   else if(msg.equals(stat2))
   {
    lcd.clear();
    lcd.noBacklight();
   }
  delay(1000);

  digitalWrite(2, LOW);//1
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);
  digitalWrite(9, LOW);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  msg = Serial.readStringUntil('\n');
  Serial.print("STATUS:");
    Serial.println(msg);
    if(msg.equals(stat))
    {
     lcd.init();
     lcd.backlight();
    lcd.clear();
     lcd.setCursor(0,0);
    lcd.print("Accident flagged");
    lcd.setCursor(0,1);
    lcd.print("Take other way");
   }
   else if(msg.equals(stat2))
   {
    lcd.clear();
    lcd.noBacklight();
   }
  delay(1000);

  digitalWrite(8, LOW);//0
  digitalWrite(9, LOW);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(7, HIGH);
  msg = Serial.readStringUntil('\n');
  Serial.print("STATUS:");
    Serial.println(msg);
    if(msg.equals(stat))
    {
     lcd.init();
     lcd.backlight();
    lcd.clear();
     lcd.setCursor(0,0);
    lcd.print("Accident flagged");
    lcd.setCursor(0,1);
    lcd.print("Take other way");
   }
   else if(msg.equals(stat2))
   {
    lcd.clear();
    lcd.noBacklight();
   }
  delay(1000);

  digitalWrite(11, LOW);
  delay(100);

  //green
  digitalWrite(12, HIGH);
    
  digitalWrite(6, LOW);//3
  digitalWrite(7, LOW);
  digitalWrite(9, LOW);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(8, HIGH);
  msg = Serial.readStringUntil('\n');
  Serial.print("STATUS:");
    Serial.println(msg);
    if(msg.equals(stat))
    {
     lcd.init();
     lcd.backlight();
    lcd.clear();
     lcd.setCursor(0,0);
    lcd.print("Accident flagged");
    lcd.setCursor(0,1);
    lcd.print("Take other way");
   }
   else if(msg.equals(stat2))
   {
    lcd.clear();
    lcd.noBacklight();
   }
  delay(1000);

  digitalWrite(4, LOW);//2
  digitalWrite(7, LOW);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(9, LOW);
  digitalWrite(8, HIGH);
  msg = Serial.readStringUntil('\n');
  Serial.print("STATUS:");
    Serial.println(msg);
    if(msg.equals(stat))
    {
     lcd.init();
     lcd.backlight();
    lcd.clear();
     lcd.setCursor(0,0);
    lcd.print("Accident flagged");
    lcd.setCursor(0,1);
    lcd.print("Take other way");
   }
   else if(msg.equals(stat2))
   {
    lcd.clear();
    lcd.noBacklight();
   }
  delay(1000);

  digitalWrite(2, LOW);//1
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);
  digitalWrite(9, LOW);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  msg = Serial.readStringUntil('\n');
  Serial.print("STATUS:");
    Serial.println(msg);
    if(msg.equals(stat))
    {
     lcd.init();
     lcd.backlight();
    lcd.clear();
     lcd.setCursor(0,0);
    lcd.print("Accident flagged");
    lcd.setCursor(0,1);
    lcd.print("Take other way");
   }
   else if(msg.equals(stat2))
   {
    lcd.clear();
    lcd.noBacklight();
   }
  delay(1000);

  digitalWrite(8, LOW);//0
  digitalWrite(9, LOW);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(7, HIGH);
  msg = Serial.readStringUntil('\n');
  Serial.print("STATUS:");
    Serial.println(msg);
    if(msg.equals(stat))
    {
     lcd.init();
     lcd.backlight();
    lcd.clear();
     lcd.setCursor(0,0);
    lcd.print("Accident flagged");
    lcd.setCursor(0,1);
    lcd.print("Take other way");
   }
   else if(msg.equals(stat2))
   {
    lcd.clear();
    lcd.noBacklight();
   }
  delay(1000);

  digitalWrite(12, LOW);
  delay(100);


  //yellow
  digitalWrite(11, HIGH);
  
  digitalWrite(4, LOW);//2
  digitalWrite(7, LOW);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(9, LOW);
  digitalWrite(8, HIGH);
  msg = Serial.readStringUntil('\n');
  Serial.print("STATUS:");
    Serial.println(msg);
    if(msg.equals(stat))
    {
     lcd.init();
     lcd.backlight();
    lcd.clear();
     lcd.setCursor(0,0);
    lcd.print("Accident flagged");
    lcd.setCursor(0,1);
    lcd.print("Take other way");
   }
   else if(msg.equals(stat2))
   {
    lcd.clear();
    lcd.noBacklight();
   }
  delay(1000);

  digitalWrite(2, LOW);//1
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);
  digitalWrite(9, LOW);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  msg = Serial.readStringUntil('\n');
  Serial.print("STATUS:");
    Serial.println(msg);
    if(msg.equals(stat))
    {
     lcd.init();
     lcd.backlight();
    lcd.clear();
     lcd.setCursor(0,0);
    lcd.print("Accident flagged");
    lcd.setCursor(0,1);
    lcd.print("Take other way");
   }
   else if(msg.equals(stat2))
   {
    lcd.clear();
    lcd.noBacklight();
   }
  delay(1000);

  digitalWrite(8, LOW);//0
  digitalWrite(9, LOW);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(7, HIGH);
  msg = Serial.readStringUntil('\n');
  Serial.print("STATUS:");
    Serial.println(msg);
    if(msg.equals(stat))
    {
     lcd.init();
     lcd.backlight();
    lcd.clear();
     lcd.setCursor(0,0);
    lcd.print("Accident flagged");
    lcd.setCursor(0,1);
    lcd.print("Take other way");
   }
   else if(msg.equals(stat2))
   {
    lcd.clear();
    lcd.noBacklight();
   }
  delay(1000);

  digitalWrite(11, LOW);
  delay(100);

}