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

const char* ssid     = "Wokwi-GUEST";//Replace with your Wifi Name
const char* password = "";// Replace with your wifi Password

const long channel =2425259;//Replace with your own ThingSpeak Account Channle ID
const char *WRITE_API="X42II4GPF3TB15UN";

WiFiClient  client;
int interval = 15*1000;

long now=0;

void connect_wifi()
{
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid,password);
  while (WiFi.status()!=WL_CONNECTED)
  {
    delay(500);
    Serial.print(".");
  }
  Serial.print("Connection Successful");
  Serial.print("IP Address: ");
  Serial.println(WiFi.localIP());
}

void setup()
{
  Serial.begin(115200);
  connect_wifi();
  ThingSpeak.begin(client);
}

void loop()
{
  int h=0;
  if (millis() - now >interval)
  {
    h=hallRead();
    ThingSpeak.setField(1,h);
    int status1 = ThingSpeak.writeFields(channel,WRITE_API);
    if (status1 == 200)
    {
      Serial.println("Updated Values Successfully");
    }
    else
    {
      Serial.println("Error Occured. HTTP error code"+status1);
    }
    now=millis();
  }
}