Move Jukebox and associated files to it's own directory. Add simplified music example to module 6

Author: ColinKerr

05_interrupts_and_timers/05_04_dht11_timer.md

@@ -0,0 +1,34 @@
+from machine import Pin, PWM
+import time
+
+# Note frequencies
+g3 = 196
+a3 = 220
+b3 = 247
+
+c4 = 262
+e4 = 330
+d4 = 294
+
+rest = 0
+
+twinkle_notes = [g3, rest, g3, rest, rest, d4, rest, d4, rest, rest, e4, rest, e4, rest, rest, d4, d4, rest, rest, rest, rest,
+                 c4, rest, c4, rest, rest, b3, rest, b3, rest, rest, a3, rest, a3, rest, rest, g3, g3, rest, rest, rest, rest,
+                 d4, rest, d4, rest, rest, c4, rest, c4, rest, rest, b3, rest, b3, rest, rest, a3, a3, rest, rest, rest, rest,
+                 d4, rest, d4, rest, rest, c4, rest, c4, rest, rest, b3, rest, b3, rest, rest, a3, a3, rest, rest, rest, rest,
+                 g3, rest, g3, rest, rest, d4, rest, d4, rest, rest, e4, rest, e4, rest, rest, d4, d4, rest, rest, rest, rest,
+                 c4, rest, c4, rest, rest, b3, rest, b3, rest, rest, a3, rest, a3, rest, rest, g3, g3, rest, rest, rest, rest]
+
+pin = Pin(11, Pin.OUT)
+pwm = PWM(pin, freq = b3, duty = 0)
+
+try:
+    for note in twinkle_notes:
+        if note > 0:
+            pwm.freq(note)
+            pwm.duty(512)
+        else:
+            pwm.duty(0)
+        time.sleep_ms(120)
+finally:
+    pwm.deinit()