#include <DHTesp.h>

DHTesp bala;
TempAndHumidity data;
int green=14;
int yellow=27;
int red=26;
int trigger=5; 
int echo=4;


void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  
  

 bala.setup(18, DHTesp::DHT22);
 pinMode(green, OUTPUT);
 pinMode(yellow, OUTPUT);
 pinMode(red, OUTPUT);
 pinMode(trigger, OUTPUT);
 pinMode(echo, INPUT);
}
int finding_distance(){
  digitalWrite(trigger,HIGH);
  delay(100);
  digitalWrite(trigger, LOW);
  float a=pulseIn(echo,HIGH);
  return(a*0.034/2);
}

void loop() {
  // put your main code here, to run repeatedly
 
  int dist=finding_distance();
  Serial.println(dist);
  data = bala.getTempAndHumidity();

  Serial.println("Humi : " + String(data.humidity));
  Serial.println("Temp : " + String(data.temperature));
  Serial.println("-----------------");
  if(dist>300 && data.temperature<30 && data.humidity<70){
  digitalWrite(green,HIGH);
  digitalWrite(red, LOW);
  digitalWrite(yellow, LOW);
  Serial.println("you are safe");
  }
  else if(dist>=200 && dist<300 && data.temperature>=30 && data.temperature<70 && data.humidity<=30 && data.humidity<70){
    digitalWrite(yellow, HIGH);
    digitalWrite(red, LOW);
    digitalWrite(green, LOW);
    Serial.println("you are unsafe");
  }
  else if(dist<200 && data.temperature>70 && data.humidity<30){
    digitalWrite(red, HIGH);
    digitalWrite(green, LOW);
    digitalWrite(yellow, LOW);
    Serial.print("you are in danger");
  }
  else{
    digitalWrite(red, LOW);
    digitalWrite(green, LOW);
    digitalWrite(yellow, LOW);
    Serial.println("no detect");
  }
  delay(100); // this speeds up the simulation
}