Add new sound effect to buzzer example

Author: sebromero

examples/buzzer.py

@@ -12,12 +12,14 @@
 """
 
 from modulino import ModulinoBuzzer
+from time import sleep
 
 buzzer = ModulinoBuzzer()
 
 # Super Mario Bros theme intro
 melody = [
     (ModulinoBuzzer.NOTES["E5"], 125),
+    (ModulinoBuzzer.NOTES["REST"], 25),
     (ModulinoBuzzer.NOTES["E5"], 125),
     (ModulinoBuzzer.NOTES["REST"], 125),
     (ModulinoBuzzer.NOTES["E5"], 125),
@@ -31,4 +33,35 @@
 ]
 
 for note, duration in melody:
+    buzzer.tone(note, duration, blocking=True)
+
+# Wait 2 seconds before playing the next melody
+sleep(2)
+
+# Police siren sound effect
+def generate_siren(frequency_start, frequency_end, total_duration, steps, iterations):
+    siren = []
+    mid_point = steps // 2
+    duration_rise = total_duration // 2
+    duration_fall = total_duration // 2
+
+    for _ in range(iterations):
+        for i in range(steps):
+            if i < mid_point:
+                # Easing in rising part
+                step_duration = duration_rise // mid_point + (duration_rise // mid_point * (mid_point - i) // mid_point)
+                frequency = int(frequency_start + (frequency_end - frequency_start) * (i / mid_point))
+            else:
+                # Easing in falling part
+                step_duration = duration_fall // mid_point + (duration_fall // mid_point * (i - mid_point) // mid_point)
+                frequency = int(frequency_end - (frequency_end - frequency_start) * ((i - mid_point) / mid_point))
+
+            siren.append((frequency, step_duration))
+
+    return siren
+
+# 4 seconds up and down siren, with 200 steps and 2 iterations
+siren_melody = generate_siren(440, 880, 4000, 200, 2)
+
+for note, duration in siren_melody:
     buzzer.tone(note, duration, blocking=True)