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

char ssid[] = "Wokwi-GUEST";
char pass[] = "";
WiFiClient client;
unsigned long myChannel1Number = 2623020;
const char* myWriteAPIKey = "4FT5XS39VMADEVJ0";

#define DHTPIN 16
#define DHTTYPE DHT11
DHT dhtsensor(DHTPIN, DHTTYPE);

int val;
int values;
int statusCode;

void setup() {
  Serial.begin(9600);
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
  dhtsensor.begin();
  delay(1000);
}

void loop() {
  val = analogRead(16);
  values = dhtsensor.readHumidity();
  float mv = (val / 1024.0) * 5000;
  float cel = mv / 10;
  float far = (cel * 9.0) / 5.0 + 32;
  
  Serial.print("Temperature: ");
  Serial.print(cel);
  Serial.print(" C, ");
  Serial.print(far);
  Serial.println(" F");

  Serial.print("Humidity: ");
  Serial.print(values);
  Serial.println("%");

  getwifi();
  ThingSpeak.setField(1, cel);
  ThingSpeak.setField(2, far);

  statusCode = ThingSpeak.writeFields(myChannel1Number, myWriteAPIKey);
  if (statusCode == 200) {
    Serial.println("Channel update successfully");
  } else {
    Serial.print("Problem writing data: HTTP error code: ");
    Serial.println(statusCode);
  }

  delay(5000);
}

void getwifi() {
  if (WiFi.status() != WL_CONNECTED) {
    Serial.print("Attempting to connect");
    while (WiFi.status() != WL_CONNECTED) {
      WiFi.begin(ssid, pass);
      Serial.print(".");
      delay(4000);
    }
    Serial.println("\nConnected");
  }
}