#include <WiFi.h>
#include <PubSubClient.h>
#include <DHT.h>
#include <PubSubClient.h>
#include <Wire.h>

#define MQTT_CLIENT_ID "Motion" 
#define MQTT_BROKER "broker.mqttdashboard.com"
#define MQTT_USER ""
#define MQTT_PASSWORD ""
#define MQTT_TOPIC "Deneme"

#define WIFI_SSID "Wokwi-GUEST"
#define WIFI_PASS ""

int pirState = LOW;
int val = 0;

WiFiClient wifiClient;
PubSubClient client(wifiClient);


const int motionSensor = 25;


void setup() {
  
  Serial.begin(115200);
  pinMode(2, OUTPUT);
  pinMode(motionSensor, INPUT);
 
  Serial.println("Connecting to WiFi");
  WiFi.begin(WIFI_SSID, WIFI_PASS);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println(" Connected!");
  
  Serial.println("Connecting to MQTT server...");
  client.setServer(MQTT_BROKER, 1883);
  client.connect(MQTT_CLIENT_ID, MQTT_USER, MQTT_PASSWORD);
  Serial.println("Connected!");
 
  
}

void loop() {
  Motion();
  delay(10);
}

void Motion() {
   val = digitalRead(motionSensor); 
   if (val == HIGH) {            
     digitalWrite(2, HIGH); 
     if (pirState == LOW) {
       
       String message = "***Motion detected!***";
       
       
       Serial.println(message);
       client.publish(MQTT_TOPIC, message.c_str());
      
       
       pirState = HIGH;
     }
   } else {
     digitalWrite(2, LOW); // turn LED OFF
     if (pirState == HIGH) {
       String message1 = "Motion ended!";
       
       Serial.println(message1);
       client.publish(MQTT_TOPIC, message1.c_str());
       pirState = LOW;
     }
   }
 }