1 files changed, 31 insertions, 0 deletions
diff --git a/firmware/lib/buzzer/buzzer.cpp b/firmware/lib/buzzer/buzzer.cpp
new file mode 100644
index 0000000..089f814
--- /dev/null
+++ b/firmware/lib/buzzer/buzzer.cpp
@@ -0,0 +1,31 @@
+#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); }