int trigger = 13;
int echo = 12;
int red=14;
int green=26;
int yellow=27;
#include <DHTesp.h>
#include <WiFi.h>
char ssid[] = "Wokwi-GUEST";
char pass[] = ""; 

DHTesp dhtsen;
TempAndHumidity data;
void setup() {
  
  Serial.begin(115200);
  dhtsen.setup(18, DHTesp::DHT22);
  pinMode(trigger, OUTPUT);
  pinMode(echo, INPUT);
  pinMode(red, OUTPUT);
  pinMode(yellow, OUTPUT);
  pinMode(green, OUTPUT);
  Serial.begin(115200);
WiFi.mode(WIFI_STA);
}

void loop()
{   
  {
  if(WiFi.status() != WL_CONNECTED)
  {
  Serial.print("Attempting to connect");
    while(WiFi.status() != WL_CONNECTED)
    {
    WiFi.begin(ssid, pass); 
    Serial.print(".");
    delay(5000);
    }
  Serial.println("\nConnected.");
  } 
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}

  int actual_distance = ultrasonic();
  Serial.println(actual_distance);
  data = dhtsen.getTempAndHumidity();
  Serial.println("Humi : " + String(data.humidity));
  Serial.println("Temp : " + String(data.temperature));
  Serial.println("-----------------");
  if (data.humidity<=20 && data.temperature>=50 && actual_distance>=300)
  {
    digitalWrite(yellow, LOW);
    digitalWrite(red, LOW);
    digitalWrite(green, HIGH);
    Serial.println("safe");
    delay(1000);
  
  }
  else if (data.humidity>20 && data.humidity<=50 && data.temperature<50 && data.temperature>=20 && actual_distance<300 && actual_distance>=200)
  {
    digitalWrite(red, LOW);
    digitalWrite(green, LOW);
    digitalWrite(yellow, HIGH);
    Serial.println("Cautious");
    delay(1000);
  }
  else if(data.humidity>20 && data.temperature<50 && actual_distance<300)
  {
    digitalWrite(green, LOW);
    digitalWrite(yellow, LOW);
    digitalWrite(red, HIGH);
    Serial.println("danger");

    delay(1000);
    
  }
  else{
    digitalWrite(green, LOW);
    digitalWrite(yellow, LOW);
    digitalWrite(red, LOW);
  }
}
int ultrasonic () {
  digitalWrite(trigger, LOW);
  delay(10);
  digitalWrite(trigger, HIGH);
  delay(100);
  digitalWrite(trigger, LOW);
  int distance = pulseIn(echo, HIGH);
  // return(distance);
  return (distance * 0.034 / 2) + 1;
}