#include "WiFi.h"

const char* ssid = "Wokwi-GUEST";
const char* password =  "";
const int redPin = 15;
const int yellowPin = 2;
const int greenPin = 4;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  WiFi.begin(ssid, password);
  Serial.println("Hello, ESP32!");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.println("Connecting to WiFi..");
  }
  Serial.println("Connected to the WiFi network");
  // Print local IP address and start web server
  Serial.println("");
  Serial.println("WiFi connected.");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
  // setup pin 5 as a digital output pin
  pinMode (redPin, OUTPUT);
  pinMode (yellowPin, OUTPUT);
  pinMode (greenPin, OUTPUT);
}

void loop() {
  digitalWrite (redPin, HIGH);  // turn on the LED
  Serial.println("Red light is on");
  delay(500); // wait for half a second or 500 milliseconds
  digitalWrite (redPin, LOW); // turn off the LED
  Serial.println("Red light is off");
  delay(500); // wait for half a second or 500 milliseconds
  digitalWrite (yellowPin, HIGH); // turn on the LED
  Serial.println("Yellow light is on");
  delay(500); // wait for half a second or 500 milliseconds
  digitalWrite (yellowPin, LOW);  // turn off the LED
  Serial.println("Yellow light is off");
  delay(500); // wait for half a second or 500 milliseconds
  digitalWrite (greenPin, HIGH);  // turn on the LED
  Serial.println("Green light is on");
  delay(500); // wait for half a second or 500 milliseconds
  digitalWrite (greenPin, LOW); // turn off the LED
  Serial.println("Green light is off");
  delay(500); // wait for half a second or 500 milliseconds
}