/* Lab Test
 * Name: Lyana
 * Class: DEM
 * Date: 19 Jan 2024
 */

#include <WiFi.h>
#include <WiFiClient.h>
#include <PubSubClient.h>

int YLED=19;
int GLED = 18;
int RLED = 23; 
int GledState = LOW; // ledState used to set the Green LED
int RledState = LOW; // ledState used to set the Red LED
int YledState = LOW; // ledState used to set the YellowLED

long GpreviousMillis = 0; // will store last time Green LED turn on
long RpreviousMillis = 0; // will store last time Red LED turn on
long YpreviousMillis = 0; // will store last time Yellow LED turn on

int Ginterval = 1000; // interval for green ld; this change according to qn
int Rinterval = 2000; // interval for red led; this change according to qn
int Yinterval = 2000; // interval for yellow led; this change according to qn

const char* ssid = "Wokwi-GUEST";
const char* password = "";

const char* hostname = "broker.hivemq.com";

WiFiClient espClient;
PubSubClient client(espClient);
const char* espClientName = "esp32_YOURNAME";  // *** Remember to Change the name to yoru name 
int PORTNUM = 1883;


void setup() 
{
  Serial.begin(9600);
  delay(5000);

  pinMode(RLED, OUTPUT);
  digitalWrite(RLED , HIGH);// off the Red Led
  pinMode(GLED, OUTPUT);
  digitalWrite(GLED , HIGH); // off the Green LED
  pinMode(YLED, OUTPUT);
  digitalWrite(YLED , HIGH); // off the Green LED


}


void loop() 
{
 
  long currentMillis = millis();  

  if ( currentMillis - GpreviousMillis >= Ginterval) // this is for the RED LED *8 Change according to Qn
  {
    GpreviousMillis = currentMillis; 
    if (GledState == LOW)
    {
      GledState = HIGH;
    
      digitalWrite(GLED,GledState);
    }
    else
    {
      GledState = LOW;
      
      digitalWrite(GLED,GledState);
    }
   
  }

  if ( currentMillis - RpreviousMillis >= Rinterval) // this is for the RED LED *8 Change according to Qn
  {
    RpreviousMillis = currentMillis; 
    if (RledState == LOW)
    {
      RledState = HIGH;
    
      digitalWrite(RLED,RledState);
    }
    else
    {
      RledState = LOW;
      
      digitalWrite(RLED,RledState);
    }
   
  }

}