#include <DHTesp.h>
#include <WiFi.h>
char nijanth[] = "Wokwi-GUEST";
char pass[] = "";
DHTesp dhtSensor;
TempAndHumidity data;
int trigger_pin=26;
int echo_pin=25;
float d;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  WiFi.mode(WIFI_STA);
  pinMode(echo_pin, INPUT);
  pinMode(trigger_pin, OUTPUT);
  pinMode(21, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(16, OUTPUT);
  pinMode(22, OUTPUT);
  dhtSensor.setup(18, DHTesp::DHT22);
}
int wdistance(){
 digitalWrite(trigger_pin,LOW);
 delay(10);
 digitalWrite(trigger_pin,HIGH);
 delay(100);
 digitalWrite(trigger_pin,LOW);
  d=pulseIn(echo_pin,HIGH);
 return(d*0.034/2)+1;

 delay(1000);
 }
 void wifi()
 {
  if(WiFi.status() != WL_CONNECTED)
  {
  Serial.print("Attempting to connect");
    while(WiFi.status() != WL_CONNECTED)
    {
    WiFi.begin(nijanth, pass); 
    Serial.print(".");
    delay(5000);
    }
  Serial.println("\nConnected.");
  } 
 }
void loop() {
  wifi();
 int c=wdistance();
  Serial.println(String(c));

  data = dhtSensor.getTempAndHumidity();

  Serial.println("Humi : " + String(data.humidity));
  Serial.println("Temp : " + String(data.temperature));
  Serial.println("-----------------");
 
    if(c<=200 && data.temperature<=40 && data.humidity>=70) 
    {
      digitalWrite(21, HIGH);//red
      digitalWrite(4, LOW);
      digitalWrite(16, LOW);
      tone(22,1000);
    }
    else if(c>200 && c<350 && data.temperature>40 && data.temperature<70 && data.humidity>40 && data.humidity<70) 
    {
      digitalWrite(4, HIGH);//orange
      digitalWrite(21, LOW);
      digitalWrite(16, LOW);
      noTone(22);
    }
    else if(c>=350 && data.temperature>=70 && data.humidity<=40)
    {
      digitalWrite(16, HIGH);//green
      digitalWrite(21, LOW);
      digitalWrite(4, LOW);
      noTone(22);
    }
 
  
  delay(1000); 
}