#include <WiFi.h>
#include "ThingSpeak.h"
#include "DHT.h"
#define DHTPIN 26
#define DHTTYPE DHT22

const char* WIFI_NAME = "DeoHostel_WIFi-14";
const char* WIFI_PASSWORD = "deoniwas123";
const int myChannelNumber = 2717241;
const char* myApiKey = "UKXP01B9ECRVQYKI";
const char* server = "api.thingspeak.com";
const int trigPin = 27;
const int echoPin = 25;

DHT dht(DHTPIN, DHTTYPE);
WiFiClient client;

void setup() {
  Serial.begin(115200);
  dht.begin();
  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Wifi not connected");
  }
  Serial.println("Wifi connected !");
  Serial.println("Local IP: " + String(WiFi.localIP()));
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
}

void loop() {
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  long duration = pulseIn(echoPin, HIGH);
  int distance = duration * 0.0343 / 2;
  Serial.print("Distance: ");
  Serial.print(distance);
  Serial.println(" cm");
  ThingSpeak.setField(1, distance);
  ThingSpeak.setField(2, t);
  ThingSpeak.setField(3, h);
  int x = ThingSpeak.writeFields(myChannelNumber, myApiKey);
  Serial.print("Temperature : \t");
  Serial.println(t);
  Serial.print("Humidity : \t");
  Serial.println(h);
  delay(1000);
}