Arduino loop with buzzer

Projects Programming
6

Something like

//https://forum.arduino.cc/t/arduino-loop-with-buzzer/868057/4

// based on  RepeatingMillisDelay.ino

// download SafeString V4.1.5+ library from the Arduino Library manager or from
// https://www.forward.com.au/pfod/ArduinoProgramming/SafeString/index.html
// for the millisDelay class
#include <millisDelay.h>

int buzzerPin = 13; // or buzzer
// Pin 13 has an LED connected on most Arduino boards.
bool buzzerOn = false; // keep track of the buzzerPin state

millisDelay buzzerDelay;
unsigned long BUZZER_DELAY_MS = 125;

millisDelay countDelay;
unsigned long COUNT_DELAY_MS = 500;

void setup() {
  Serial.begin(9600);
  for (int i = 10; i > 0; i--) {
    Serial.print(' '); Serial.print(i);
    delay(500);
  }
  Serial.println();
  // initialize the digital pin as an output.
  pinMode(buzzerPin, OUTPUT);   // initialize the digital pin as an output.
  digitalWrite(buzzerPin, LOW); // turn buzzerPin off
  buzzerOn = false;

  // start delay
  countDelay.start(COUNT_DELAY_MS);
}

int buzzerCounter = 21; // > 20 so buzzer not running
void runBuzzer() {
  if (buzzerCounter >= 20) {
    buzzerDelay.stop();
    return; // stop buzzer
  } // else run buzzer
  // check if delay has timed out
  if (buzzerDelay.justFinished()) {
    buzzerDelay.restart(); //
    buzzerCounter++;
    // toggle the buzzerPin
    buzzerOn = !buzzerOn;
    if (buzzerOn) {
      digitalWrite(buzzerPin, HIGH); // turn buzzerPin on
    } else {
      digitalWrite(buzzerPin, LOW); // turn buzzerPin off
    }
  }
}

int count = 0;
int limit = 10;
void checkStartBuzzer() {
  if (countDelay.justFinished()) {
    countDelay.repeat();
    count++;
    if (count > limit) {
      Serial.println(F("start buzzer"));
      buzzerCounter = 0; // start buzzer
      buzzerDelay.start(BUZZER_DELAY_MS);
      count = 0; // repeat in 5sec
    }
  }
}

void loop() {
  checkStartBuzzer();
  runBuzzer();
}
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