#include <OneWire.h>
#include <DallasTemperature.h>

const int buttonPin = 2; 
const int triggerPin = A0; 
const int echoPin = A1; 
const int ledPin = 13; 
const int tempPin = A2;

int tempmax = 37;

OneWire oneWire(tempPin);
DallasTemperature sensors(&oneWire);

int getDistance(int PIN_TRIG, int PIN_ECHO) {

  digitalWrite(PIN_TRIG, HIGH);
  delayMicroseconds(10);
  digitalWrite(PIN_TRIG, LOW);

  long duration = pulseIn(PIN_ECHO, HIGH);
  int distance = duration * 0.034 / 2;

  return distance;
}

void setup() {
  Serial.begin(9600); 
  pinMode(buttonPin, INPUT); 

  pinMode(triggerPin, OUTPUT); 
  pinMode(echoPin, INPUT); 
  
  pinMode(ledPin, OUTPUT); 
 
  sensors.begin(); 

}

void loop() {
  int distance = getDistance(triggerPin, echoPin);
  delay(500);

  int buttonState = digitalRead(buttonPin);
  if (buttonState == HIGH) {
    Serial.println("Сканирование");
    if (distance < 100){
      sensors.requestTemperatures(); 

      float temperatureC = sensors.getTempCByIndex(0);

      if (temperatureC < tempmax) {
 
        digitalWrite(ledPin, HIGH);
        Serial.println("No corona");
      } else {

        digitalWrite(ledPin, LOW);
        Serial.println("You got corona, bro");
      }
      
    } 
  else {
    Serial.println("Oh no, man");
    }
  }
  
}