int LED1 = 18;
int LED2 = 19;
int LED3 = 21;

int Potentiometer = 34;
int PotenValue;

#include <UltrasonicSensor.h> 
UltrasonicSensor ultrasonic(26, 27);

#include <DHT.h>
#define DHTPIN 14
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);
float temperature;
float humidity;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(LED1,OUTPUT);
  pinMode(LED2,OUTPUT);
  pinMode(LED3,OUTPUT);
  ultrasonic.setTemperature(22); 
  dht.begin();
}
void loop() {
  PotenValue = analogRead(Potentiometer);
  int PotenValueMap = map(PotenValue,0,4095,0,255);
  Serial.print("PotenValue Map = "); 
  Serial.println(PotenValueMap);

  int distance = ultrasonic.distanceInCentimeters();
  Serial.print("Distance: ");
  Serial.print(distance);
  Serial.println(" cm");

  humidity = dht.readHumidity();        
  temperature = dht.readTemperature();  
  Serial.print("Humidity: "); 
  Serial.print(humidity);          
  Serial.println(" %"); 
  delay(200);
  if(distance >= 2 and distance <=8 and humidity < 30){
    analogWrite(LED1,PotenValueMap);
    analogWrite(LED2,PotenValueMap);
    analogWrite(LED3,PotenValueMap);
  }
  else if (distance >= 9 and distance <=15 and humidity >= 30){
    analogWrite(LED1,PotenValueMap);
    analogWrite(LED2,PotenValueMap);
    analogWrite(LED3,PotenValueMap);
    delay(300);
    analogWrite(LED1,0);
    analogWrite(LED2,0);
    analogWrite(LED3,0);
    delay(300);    
  }
  else if (distance > 15){
    analogWrite(LED1,PotenValueMap);
    delay(200);
    analogWrite(LED1,0);
    delay(200);
    analogWrite(LED2,PotenValueMap);
    delay(200);
    analogWrite(LED2,0);
    delay(200);
    analogWrite(LED3,PotenValueMap);
    delay(200);
    analogWrite(LED3,0);
    delay(200);
  }
  else{
    analogWrite(LED1,0);
    analogWrite(LED2,0);
    analogWrite(LED3,0);
  }
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}