MeshCoreTel-firmware/examples/companion_radio/buzzer.cpp

#ifdef PIN_BUZZER
#include "buzzer.h"

void genericBuzzer::begin() {
    Serial.print("DBG: Setting up buzzer on pin ");
    Serial.println(PIN_BUZZER);
    #ifdef PIN_BUZZER_EN
      pinMode(PIN_BUZZER_EN, OUTPUT);
      digitalWrite(PIN_BUZZER_EN, HIGH);
    #endif

    quiet(false);
    pinMode(PIN_BUZZER, OUTPUT);
    startup();
}

void genericBuzzer::play(const char *melody) {
    if (isPlaying())   // interrupt existing
    {
        rtttl::stop();
    }

    if (_is_quiet) return;

    rtttl::begin(PIN_BUZZER,melody);
//    Serial.print("DBG: Playing melody - isQuiet: ");
//    Serial.println(isQuiet());
}

bool genericBuzzer::isPlaying() {
    return rtttl::isPlaying();
}

void genericBuzzer::loop() {
    if (!rtttl::done()) rtttl::play();
}

void genericBuzzer::startup() {
    play(startup_song);
}

void genericBuzzer::shutdown() {
    play(shutdown_song);
}

void genericBuzzer::quiet(bool buzzer_state) {
    _is_quiet = buzzer_state;
}

bool genericBuzzer::isQuiet() {
    return _is_quiet;
}

#endif  // ifdef PIN_BUZZER