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

const int dhtPin = 15;
DHTesp dhtSensor;
TempAndHumidity data;

const int trigPin = 27;
const int echoPin = 26;

char ssid[] = "Wokwi-GUEST";
char pass[] = "";
WiFiClient client;

const int myChannelId = 2450969;
const char myWriteApiKey[] = "FZK8VMKTAXVXVG1A";
int statusCode;

void setup() {
  Serial.begin(115200);
  dhtSensor.setup(dhtPin,DHTesp::DHT22);

  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);

  WiFi.mode(WIFI_STA);

  ThingSpeak.begin(client);
}

void loop() {
  if(WiFi.status()!=WL_CONNECTED)
  {
    Serial.println("Attempting to Connect");
    while(WiFi.status()!=WL_CONNECTED)
    {
      WiFi.begin(ssid,pass);
      Serial.print(".");
      delay(5000);
    }
  }
  Serial.println("Connected");
  data = dhtSensor.getTempAndHumidity();
  float temp = data.temperature;
  float humidity = data.humidity;
  Serial.println(temp);
  Serial.println(humidity);

  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin,LOW);
  int duration = pulseIn(echoPin,HIGH);
  int distance = duration * 0.03405/2;
  Serial.println(distance);

  ThingSpeak.setField(1,temp);
  ThingSpeak.setField(2,humidity);
  ThingSpeak.setField(3,distance);
  statusCode = ThingSpeak.writeFields(myChannelId,myWriteApiKey);
  if(statusCode == 200)
  {
    Serial.println("Channel Updated");
  }
  else
  {
    Serial.println("Channel Not Updated");
  }
  delay(15000);
}