Notes

#include <TinyGPS++.h>
#include <ESP8266WiFi.h>
#include <PubSubClient.h>
#include <SoftwareSerial.h>

const char* ssid = "Bedava";
const char* password = "12345678";
const char* mqtt_server = "37.148.209.175";
//GPS
TinyGPSPlus gps;
SoftwareSerial ss(1, 2);
//Wifi
WiFiClient espClient;
PubSubClient client(espClient);
//Tanımlamalar
float latitude , longitude;
int year , month , date, hour , minute , second;
String date_str , time_str , lat_str , lng_str;
int pm;
void setup_wifi() { //WIFI Bağlantısı
delay(10);
Serial.println();
Serial.println(ssid);
Serial.println("BAGLANILIYOR");
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
randomSeed(micros());
Serial.println("");
Serial.println("WIFI BAGLANDI");
Serial.println("IP ADRES: ");
Serial.println(WiFi.localIP());
}

//GELEN MQTT MESAJLARI
void callback(char* topic, byte* payload, unsigned int length) {
Serial.print("MESAJ GELDI [");
Serial.print(topic);
Serial.print("] ");
for (int i = 0; i < length; i++) {
Serial.print((char)payload[i]);
}
Serial.println();
}

//MQTT SERVER BAGLAN
void reconnect() {
while (!client.connected()) {
Serial.print("TEKRAR MQTT BAGLANILIYOR");
String clientId = "ESP8266Client-";
clientId += String(random(0xffff), HEX);
if (client.connect(clientId.c_str()), "root", "Vr9Fr6Ge8") {
Serial.println("BAGLANDI");
client.publish("MesajGonder", "Merhaba"); //MesajGonder topiğinde Merhaba paylaş
client.subscribe("MesajOku"); //MesajOku topiğine üye ol, gelen mesajları oku
} else {
Serial.print("failed, rc=");
Serial.print(client.state());
Serial.println(" 5 saniye sonra tekrar denenecek");
delay(5000);
}}}

void setup() {
Serial.begin(115200);
ss.begin(9600);
setup_wifi();
client.setServer(mqtt_server, 1993); // 1883 MQTT Server Portunu ayarlayınız
client.setCallback(callback);
}

void loop() {
if (!client.connected()) {
reconnect();
}
// GPS Veri İşleme Başlangıç

if (gps.encode(ss.read())) //read gps data
{
if (gps.location.isValid()) //check whether gps location is valid
{
latitude = gps.location.lat();
String lat_str = String(latitude , 6);
longitude = gps.location.lng();
lng_str = String(longitude , 6);
String loc_data = String(latitude,6) + "," + String(longitude,6);
char loc_data_char[100];
loc_data.toCharArray(loc_data_char,100);
Serial.print(F("nSending LOCATION val: ")); Serial.print(loc_data); Serial.print(F("..."));
client.publish("Location",loc_data_char);
}

// GPS Veri İşleme Sonu
client.loop();
Serial.print("Mesaj Paylaşıldı: ");
}
}