#include <LiquidCrystal_I2C.h>
#define Pulse_sensor 14
#define Temp_sensor 27
#define LED 2
#define buzzer 4
LiquidCrystal_I2C lcd(0x27, 16, 2);  
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");

  ledcSetup(0, 1000, 10);  // Use LEDC channel 0, 1000 Hz, 10-bit depth
  ledcAttachPin(buzzer, 0); // Attach buzzer to LEDC channel 0

  // initialize LCD
  lcd.init();
  // turn on LCD backlight                      
  lcd.backlight();
  pinMode(LED, OUTPUT);
  pinMode(buzzer ,OUTPUT );
  digitalWrite(buzzer, LOW);
  digitalWrite(LED, LOW);
}

void check(int pulse,int temp)
{
    if(pulse >=1000)
  {
    digitalWrite(LED, HIGH);
    tone(buzzer,1030);
  }
  else if(temp>=1000)
  {
    digitalWrite(LED, HIGH);
    tone(buzzer,1030);
  }
  else
  {
    digitalWrite(LED,LOW);
    noTone(buzzer);
  }
}
// void checktemp(int temp)
// {


// }
void loop() {
  // put your main code here, to run repeatedly:
  int pulse = analogRead(14);
  int temp= analogRead(27);

  //digitalWrite(LED, HIGH);
  //tone(buzzer,1030);
// set cursor to first column, first row
  lcd.setCursor(0, 0);
  
  Serial.print("Pulse value: ");
  Serial.println(pulse);
  lcd.print("Pulse:");
 
  lcd.print(pulse);
  lcd.setCursor(0,1);
  Serial.print("Temperatue : ");
  Serial.println(temp);
  lcd.print("Temperature:");
 
  lcd.print(temp);
  check(pulse,temp);
  delay(1000);
  delay(10); // this speeds up the simulation
  lcd.clear();
  
}