Add buzzer reset and integrate into resetbot

Add a reset_buzzer method to Buzzer to immediately stop PWM output, deinit timers, and clear song state so the buzzer is silenced and reset. Shorten the missing-pin exception message. Add a reset_buzzer helper in resetbot.py and wire it into reset_hard and module-level cleanup (with try/except guards) so the buzzer is turned off during resets.

Author: SaintSampo

XRPLib/buzzer.py

@@ -59,7 +59,7 @@ def __init__(self, buzzer_pin: int|str = None):
             if hasattr(machine.Pin.board, "BOARD_BUZZER"):
                 pin = "BOARD_BUZZER"
             else:
-                raise Exception("No buzzer pin defined, are you sure this board has a buzzer?")
+                raise Exception("No buzzer pin defined")
 
         self._pin = machine.Pin(pin)
         self._pwm = machine.PWM(self._pin)
@@ -306,6 +306,23 @@ def play_song(self, song: list, tempo: int = None, blocking: bool = True):
             self._timer.init(freq=100, callback=lambda t: self._update(t))
             self._timer_in_use = True
 
+    def reset_buzzer(self):
+        """
+        Stops all sounds and timers immediately. 
+        Resets the buzzer to a silent state.
+        """
+        # Stop PWM output
+        self._pwm.duty_u16(0)
+        
+        # Stop background timers
+        if self._timer_in_use:
+            self._timer.deinit()
+            self._timer_in_use = False
+            
+        # Reset song state
+        self._song = []
+        self._song_index = 0
+
     def play_move_it(self, blocking: bool = True):
         """
         Play "I Like to Move It" song.

XRPLib/resetbot.py

@@ -28,6 +28,15 @@ def reset_led():
     except:
         pass
 
+def reset_buzzer():
+    from XRPLib.buzzer import Buzzer
+    # Turn off the buzzer
+    try:
+        # Turn off the Buzzer if the board has one
+        Buzzer.reset_buzzer()
+    except:
+        pass
+
 def reset_servos():
     from XRPLib.servo import Servo
     # Turn off both Servos
@@ -48,6 +57,7 @@ def reset_hard():
     reset_gamepad()
     reset_motors()
     reset_led()
+    reset_buzzer()
     reset_servos()
     reset_webserver()
 
@@ -60,6 +70,9 @@ def reset_hard():
 if "XRPLib.board" in sys.modules:
     reset_led()
 
+if "XRPLib.buzzer" in sys.modules:
+    reset_buzzer()
+
 if "XRPLib.servo" in sys.modules:
     reset_servos()