lib/buzzer/buzzer.cpp


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#include "buzzer.h"
#include "settings.h"
#include <Arduino.h>

#define BUZZER_CHANNEL 3
#define BUZZER_RESOLUTION 8
#define BUZZER_FREQ 2000

BUZZER::BUZZER() {}

void BUZZER::init() {
  ledcSetup(BUZZER_CHANNEL, BUZZER_FREQ, BUZZER_RESOLUTION);
  ledcAttachPin(BUZZER_PIN, BUZZER_CHANNEL);
}

void BUZZER::playTone(uint16_t frequency, uint32_t duration) {
  ledcWriteTone(BUZZER_CHANNEL, frequency);
  if (duration > 0) {
    delay(duration);
    stop();
  }
}

void BUZZER::playMelody(const uint16_t melody[][2], size_t length) {
  for (size_t i = 0; i < length; i++) {
    playTone(melody[i][0], melody[i][1]);
    delay(50);
  }
}

void BUZZER::stop() { ledcWriteTone(BUZZER_CHANNEL, 0); }