Initial Commit

Tone32.cpp

@@ -0,0 +1,21 @@
+#include "Tone32.h"
+
+void tone(uint8_t pin, unsigned int frequency, unsigned long duration, uint8_t channel)
+{
+    if (ledcRead(channel)) {
+        log_e("Tone channel %d is already in use", ledcRead(channel));
+        return;
+    }
+    ledcAttachPin(pin, channel);
+    ledcWriteTone(channel, frequency);
+    if (duration) {
+        delay(duration);
+        noTone(pin, channel);
+    }    
+}
+
+void noTone(uint8_t pin, uint8_t channel)
+{
+    ledcDetachPin(pin);
+    ledcWrite(channel, 0);
+}