#include <WiFi.h>
#include <ezButton.h>

#define devLED 2
#define BUTTON_PIN 12
#define speaker 15
#define pitch 262

bool state = LOW;  // flag to initialize variables
float pressure; // ตัวแปรเก็บค่าแรงดันที่จะแสดง

ezButton button(BUTTON_PIN);  // create ezButton that attach to pin 13;

void setup() {
  pinMode(devLED, OUTPUT);
  pinMode(speaker, OUTPUT);
  Serial.begin(9600);

  digitalWrite(devLED, LOW);
  button.setDebounceTime(20); // set debounce time to 50 milliseconds
  Serial.println("Start...");
}

float GetPressure(){
  float result; // ตัวแปรเก็บค่าแรงดันที่จะแสดง
  result = 10.05;
  return result;
}

void siren() {
    digitalWrite(2, !digitalRead(2));
//    tone(speaker, pitch);
    delay(300);
//    noTone(speaker);
    digitalWrite(2, !digitalRead(2));
    delay(300);
}

void myTone( int pin)
{
  ledcAttachPin(pin, 0);             // pin, channel
  ledcWriteNote(0, NOTE_F, 4);    // channel, frequency, octave
}

void myNoTone( int pin)
{
  ledcDetachPin(pin);
}

void loop() {
  // put your main code here, to run repeatedly:
  button.loop(); // MUST call the loop() function first

  if (button.isReleased()){
     state = !(state);
     Serial.println("The button is Released");
     digitalWrite(devLED,state);
    if(state == HIGH){                
      myTone(speaker);
    } else {
      myNoTone(speaker);
    }
  }
}