Add draft code

draft_code/buzzer.py

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+from machine import Pin, PWM
+import time
+
+# Set up pin 46 as PWM output
+buzzer = PWM(Pin(46))
+
+# Function to play a tone (frequency in Hz, duration in seconds)
+def play_tone(frequency, duration):
+    buzzer.freq(frequency)  # Set frequency
+    buzzer.duty_u16(32768) # 50% duty cycle (32768 is half of 65536)
+    time.sleep(duration)    # Play for specified duration
+    buzzer.duty_u16(0)     # Stop the tone
+
+# Example: Play a 440 Hz tone (A4 note) for 1 second
+play_tone(440, 1)
+
+# Optional: Play a sequence of notes
+notes = [(261, 0.5), (293, 0.5), (329, 0.5), (349, 0.5)]  # C4, D4, E4, F4
+for freq, duration in notes:
+    play_tone(freq, duration)
+    time.sleep(0.1)  # Short pause between notes
+
+# Turn off the buzzer
+buzzer.deinit()