meshtastic-firmware/variants/m5stack_core/Speaker.cpp

33 wiersze
598 B
C++

#include "Speaker.h"
TONE::TONE(void) {
_volume = 5;
_begun = false;
}
void TONE::begin() {
_begun = true;
ledcSetup(TONE_PIN_CHANNEL, 0, 13);
ledcAttachPin(PIN_BUZZER, TONE_PIN_CHANNEL);
}
void TONE::end() {
mute();
ledcDetachPin(PIN_BUZZER);
_begun = false;
}
void TONE::tone(uint16_t frequency) {
if(!_begun) begin();
ledcWriteTone(TONE_PIN_CHANNEL, frequency);
ledcWrite(TONE_PIN_CHANNEL, 0x400 >> _volume);
}
void TONE::setVolume(uint8_t volume) {
_volume = 11 - volume;
}
void TONE::mute() {
ledcWriteTone(TONE_PIN_CHANNEL, 0);
digitalWrite(PIN_BUZZER, 0);
}