#include <ESP32Servo.h>

int redLed = 32; // Red LED
int yellowLed = 33; // Yellow LED
int greenLed = 25; // Green LED

Servo servoA;
Servo servoB;
String title = "Traffic light system";

void setup() {
  pinMode(redLed, OUTPUT); 
  pinMode(yellowLed, OUTPUT); 
  pinMode(greenLed, OUTPUT); 

  servoA.attach(27, 500, 2400);
  servoB.attach(26, 500, 2400);

  Serial.begin(9600);
}

void loop() {
  // Yellow light on for 0.5 seconds
  digitalWrite(redLed, 0);
  digitalWrite(yellowLed, 1);
  digitalWrite(greenLed, 0);
  Serial.println("YELLOW");
  delay(1000);

  // Green light on for 5 seconds
  digitalWrite(redLed, 0);
  digitalWrite(yellowLed, 0);
  digitalWrite(greenLed, 1); 
  Serial.println("GREEN"); 
  servoA.write(0);
  servoB.write(180);  
  delay(10000);

  // Yellow light on for 0.5 seconds
  digitalWrite(redLed, 0);
  digitalWrite(yellowLed, 1);
  digitalWrite(greenLed, 0);
  Serial.println("YELLOW");
  servoA.write(180);    
  servoB.write(0);  
  delay(1000);  

  // Red light on for 2 seconds
  digitalWrite(redLed, 1);
  digitalWrite(yellowLed, 0);
  digitalWrite(greenLed, 0);
  Serial.println("RED");
  delay(5000);
}