#include <ArduinoJson.h>
#include <WiFi.h>
#include <ThingSpeak.h>
const char* ssid = "Wokwi-GUEST";
const char* pass = "";
const int LM35Pin = 14;
const unsigned long myChannelNumber = 3061763;
const char* myWriteAPIKey = "2IL6XTBCND1S3NLV";
WiFiClient client;
void setup() {
  Serial.begin(9600);
  pinMode(LM35Pin, INPUT);
  WiFi.begin(ssid, pass);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.print(".");
  }
  Serial.println("WiFi Connected!");
  ThingSpeak.begin(client);
}
void loop() {
  int LM35 = analogRead(LM35Pin);
  float temp = (LM35 * 3300.0 / 4095.0) / 10.0;  
  Serial.print("Temperature = ");
  Serial.print(temp);
  Serial.println(" *C");
  ThingSpeak.setField(1, temp);
  int statusCode = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
  if (statusCode == 200) {
    Serial.println("Channel update successful.");
  } else {
    Serial.print("Problem writing data. HTTP error code: ");
    Serial.println(statusCode);
  }
  delay(15000); 
}