add buzzer

1 files changed, 37 insertions, 0 deletions

diff --git a/lib/buzzer/buzzer.cpp b/lib/buzzer/buzzer.cpp
new file mode 100644
index 0000000..a83ec22
--- /dev/null
+++ b/lib/buzzer/buzzer.cpp
@@ -0,0 +1,37 @@
+#include <Arduino.h>
+#include "settings.h"
+#include "buzzer.h"
+
+#define BUZZER_CHANNEL 3
+#define BUZZER_RESOLUTION 8
+
+BUZZER::BUZZER()
+{
+    ledcSetup(BUZZER_CHANNEL, 2000, 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);
+}
\ No newline at end of file