Automatic SocialDistancing using pirsensor and temp with LCD

#include <LiquidCrystal.h>

LiquidCrystal lcd(10,9, 5, 4, 3, 2);

int sensorPin = 0; 
int buzzerPin = 12;               //BUZZER INPUT PIN.
int ultrasonicpin=6;
int sensorvalue=LOW;
int pirPin = 13;  
int ledPin = 11;
int sensorpin;
void setup()
{
  lcd.begin(16, 2);
  pinMode(buzzerPin, OUTPUT);               //SET BUZZER AS OUTPUT.
  pinMode(ledPin, OUTPUT);                  //SET LED AS OUTPUT.
  pinMode(pirPin, INPUT);                  //SET PIR AS INPUT.
  pinMode(A0, INPUT);
} 
void loop()                     
{
    lcd.clear();
int reading = analogRead(sensorPin);  
float voltage = reading * 5.0;
voltage /= 1024.0; 
float temperatureC = (voltage - 0.5) * 100 ; 
float temperatureF = (temperatureC * 9.0 / 5.0) + 32.0;
if(temperatureC>=38.0)
{
  sensorvalue = digitalRead(pirPin);        //READ PIR INPUT PIN.
  if( sensorvalue == HIGH ) {               //IF MOTION IS DETECTED.
    tone(buzzerPin, 1200);                  //BUZZ THE BUZZER.
    digitalWrite(ledPin, HIGH);             //ON LED.
    delay(100);                            //TIME DIFFERENCE BETWEEN HIGH(ON)& LOW(OFF).                      .
    lcd.setCursor(1,0);
    lcd.print("Social distanci");
    lcd.setCursor(0,1);
    lcd.print("ng is violated");
    delay(100);                        //TIME DIFFERENCE BETWEEN HIGH(ON)& LOW(OFF).
  }
  else{
     noTone(buzzerPin);                      //SILENT THE BUZZER.
    digitalWrite(ledPin, LOW); 
    lcd.print("You have fever!!");
    lcd.setCursor(0,1);
    lcd.print("C=");
    lcd.print(temperatureC);
    lcd.print(" F=");
    lcd.print(temperatureF);}
}else{
     sensorvalue = digitalRead(pirPin);        //READ PIR INPUT PIN.
  if( sensorvalue == HIGH ) {               //IF MOTION IS DETECTED.
    tone(buzzerPin, 1200);                  //BUZZ THE BUZZER.
    digitalWrite(ledPin, HIGH);             //ON LED.
    delay(100);                            //TIME DIFFERENCE BETWEEN HIGH(ON)& LOW(OFF).                      .
    lcd.setCursor(1,0);
    lcd.print("Social distanci");
    lcd.setCursor(0,1);
    lcd.print("ng is violated");
    delay(100);                        //TIME DIFFERENCE BETWEEN HIGH(ON)& LOW(OFF).
  }
  else{
     noTone(buzzerPin);                      //SILENT THE BUZZER.
    digitalWrite(ledPin, LOW); 
    lcd.print("You are safe");
    lcd.setCursor(0,1);
    lcd.print("C=");
    lcd.print(temperatureC);
    lcd.print(" F=");
    lcd.print(temperatureF);
    digitalWrite(9,0);
  }
  }
  delay(1000);
  }