//Original Code: Example code KY012 active buzzer
//https://www.instructables.com/Arduino-37-in-1-Sensors-Kit-Explained/ 
//Update: José Manuel Díaz Bello - Fab Academy 2022


int speakerPin = 5;
int boton_alarm = 4;


void setup () {
  pinMode (speakerPin, OUTPUT);
   pinMode (boton_alarm, INPUT);


   
}
void loop () {


  delay(300); 
int lectura=digitalRead(boton_alarm);
  
  if(lectura==LOW)
{
 analogWrite (speakerPin, 0);
  }
  
 else
{
 analogWrite(speakerPin, 250);
 delay(20);
  analogWrite(speakerPin, 0);
   delay(20);
 
  }
  

 
}