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

DHTesp dhtSensor;
TempAndHumidity data;

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

unsigned long myChannelNumber = 2628743;
const char* WriteKey = "APHNVOMNXFR39CXY"; 
int statusCode;

const int trigger = 13;
const int echo = 14;
const int dhtpin = 27;
const int green = 18;
const int red = 19;
const int blue = 17;
const int buzzer = 25;
int buzzerValue = 0;
float dur;
float dis;

void setup() {
  Serial.begin(115200);
  dhtSensor.setup(dhtpin,DHTesp::DHT22);
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
  pinMode(trigger,OUTPUT);
  pinMode(echo,INPUT);
  pinMode(green, OUTPUT);
  pinMode(red, OUTPUT);
  pinMode(blue, OUTPUT);
  pinMode(buzzer, OUTPUT);
  delay(50000);
}

float getDistance()
{
  digitalWrite(trigger, LOW);
  delayMicroseconds(2);
  digitalWrite(trigger, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigger, LOW);
  dur = pulseIn(echo,HIGH);
  return{dur*0.034/2};
}

void getWifi()
{
  if(WiFi.status() != WL_CONNECTED)
  {
    Serial.println("Attempting to connect...");
    while(WiFi.status() != WL_CONNECTED)
    {
      WiFi.begin(ssid,pass);
      Serial.print(".");
      delay(50000);
    }
  }
  Serial.println("Connected...");
}

void loop() {
  getWifi();

  data = dhtSensor.getTempAndHumidity();
  dis = getDistance();

  

  //Temperature Settings
  if(data.temperature<=12)
  digitalWrite(green, HIGH);
  else
  digitalWrite(green, LOW);

  //Humidity Settings
  if(data.humidity<=25)
  digitalWrite(blue, HIGH);
  else
  digitalWrite(blue, LOW);
   
  //Distance Settings
  if(dis < 100)
  {
    digitalWrite(red, HIGH);
    tone(buzzer,1200);
    buzzerValue = 1;
  }
  
  else
  {
    digitalWrite(red, LOW);
    noTone(buzzer);
    buzzerValue = 0;
  }

  //Storing 
  ThingSpeak.setField(1,data.temperature);
  ThingSpeak.setField(2,data.humidity);
  ThingSpeak.setField(3,dis);
  ThingSpeak.setField(4,buzzerValue);

  delay(30000);
}