// Traffic Light using Arduino Nano

// Pin numbers for the LEDs
const int buttonPin = 1;
const int redLED1 = 2;
const int yellowLED1 = 3;
const int greenLED1 = 4;
const int redLED2 = 5;
const int yellowLED2 = 6;
const int greenLED2 = 7;
const int redLED3 = 8;
const int yellowLED3 = 9;
const int greenLED3 = 10;
const int redLED4 = 11;
const int yellowLED4 = 12;
const int greenLED4 = 13;

int numb = 1;
int pres = 0;

void setup() {
  // Initialize the pins as outputs
  pinMode(buttonPin, INPUT);
  pinMode(redLED1, OUTPUT);
  pinMode(yellowLED1, OUTPUT);
  pinMode(greenLED1, OUTPUT);
  pinMode(redLED2, OUTPUT);
  pinMode(yellowLED2, OUTPUT);
  pinMode(greenLED2, OUTPUT);
  pinMode(redLED3, OUTPUT);
  pinMode(yellowLED3, OUTPUT);
  pinMode(greenLED3, OUTPUT);
  pinMode(redLED4, OUTPUT);
  pinMode(yellowLED4, OUTPUT);
  pinMode(greenLED4, OUTPUT);
}

void loop() {

  ButtonScan();

switch (numb) {
  case 1:
    WARNING_1();
    break;
  case 2:
    WARNING_2();
    break;
  
  // Green2 ON
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, LOW);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, HIGH);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(8000);  // Wait for 8 seconds

  // Transisi kedip
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, LOW);
  digitalWrite(yellowLED2, HIGH);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, LOW);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, LOW);
  digitalWrite(yellowLED2, HIGH);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, LOW);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, LOW);
  digitalWrite(yellowLED2, HIGH);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, LOW);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);

  // All red
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(3000);  // Wait for 3 seconds

  // Transisi
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, HIGH);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(3000);  // Wait for 3 seconds

  // Green3 ON
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, LOW);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, HIGH);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(8000);  // Wait for 8 seconds

  // Transisi kedip
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, LOW);
  digitalWrite(yellowLED3, HIGH);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, LOW);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, LOW);
  digitalWrite(yellowLED3, HIGH);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, LOW);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, LOW);
  digitalWrite(yellowLED3, HIGH);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, LOW);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);

  // All red
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(3000);  // Wait for 3 seconds

  // Transisi
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, HIGH);
  digitalWrite(greenLED4, LOW);
  delay(3000);  // Wait for 3 seconds

  // Green4 ON
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, LOW);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, HIGH);
  delay(8000);  // Wait for 8 seconds

  // Transisi kedip
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, LOW);
  digitalWrite(yellowLED4, HIGH);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, LOW);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, LOW);
  digitalWrite(yellowLED4, HIGH);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, LOW);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, LOW);
  digitalWrite(yellowLED4, HIGH);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, LOW);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);

  // All red
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(3000);  // Wait for 3 seconds

  // Transisi
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, HIGH);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(3000);  // Wait for 3 seconds

  // Green1 ON
  digitalWrite(redLED1, LOW);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, HIGH);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(8000);  // Wait for 8 seconds

  // Transisi kedip
  digitalWrite(redLED1, LOW);
  digitalWrite(yellowLED1, HIGH);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, LOW);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, LOW);
  digitalWrite(yellowLED1, HIGH);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, LOW);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, LOW);
  digitalWrite(yellowLED1, HIGH);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);
  digitalWrite(redLED1, LOW);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(500);


  // All red
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, LOW);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(3000);  // Wait for 3 seconds

  // Transisi
  digitalWrite(redLED1, HIGH);
  digitalWrite(yellowLED1, LOW);
  digitalWrite(greenLED1, LOW);
  digitalWrite(redLED2, HIGH);
  digitalWrite(yellowLED2, HIGH);
  digitalWrite(greenLED2, LOW);
  digitalWrite(redLED3, HIGH);
  digitalWrite(yellowLED3, LOW);
  digitalWrite(greenLED3, LOW);
  digitalWrite(redLED4, HIGH);
  digitalWrite(yellowLED4, LOW);
  digitalWrite(greenLED4, LOW);
  delay(3000);  // Wait for 3 seconds
}