#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ThingSpeak.h>

const char* ssid = "NishaMi"; //Your Network SSID
const char* password = "password"; //Your Network Password

int TempPin = A0; //Temp Pin Connected at A0 Pin

WiFiClient client;

unsigned long myChannelNumber = 849809; //Your Channel Number 
const char * myWriteAPIKey = "2C4KJFA9BZCXLPEN"; //Your Write API Key

void setup() {
  Serial.begin(9600);
  delay(10);
  
  // Connect to WiFi network
  WiFi.begin(ssid, password);
  
  ThingSpeak.begin(client);
}

void loop() {
  float resolution = 3.3 / 1023;
  float temp = ((analogRead(A0) * resolution) * 100) + 23.89;
  
  Serial.print("Temperature: ");
  Serial.print(temp);
  Serial.println(" uploaded to ThingSpeak server....");
  
  delay(1000);
  ThingSpeak.writeField(myChannelNumber, 1, temp, myWriteAPIKey); //Update in ThingSpeak
  delay(100);
}