Create code.py

Initial code for the Adafruit Learning System Guide Music Box with Adabot and Crickit for CPX by Dano Wall

Music_Box_with_Crickit/code.py

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+# Music Box code in CircuitPython - Dano Wall and Mike Barela
+
+from busio import I2C
+from adafruit_seesaw.seesaw import Seesaw
+from adafruit_seesaw.pwmout import PWMOut
+from adafruit_motor import servo
+from analogio import AnalogIn
+from simpleio import map_range
+import neopixel
+import audioio
+import board
+import os
+import random
+
+# Create seesaw object
+i2c = I2C(board.SCL, board.SDA)
+seesaw = Seesaw(i2c)
+
+# Create one servo on seesaw servo 2
+pwm = PWMOut(seesaw, 16)
+pwm.frequency = 50
+myservo = servo.Servo(pwm)
+myservo.angle = 0  
+
+# Find all Wave files on the storage
+wavefiles = [file for file in os.listdir("/")
+             if (file.endswith(".wav") and not file.startswith("._"))]
+if len(wavefiles) < 1:
+    print("No wav files found in root directory")
+else:
+    print("Audio files found: ", wavefiles)
+
+# audio output
+cpx_audio = audioio.AudioOut(board.A0)
+
+def play_file(filename):
+    f = open(filename, "rb")
+    wav = audioio.WaveFile(f)
+    cpx_audio.play(wav)
+
+# neopixels!
+pixels = neopixel.NeoPixel(board.NEOPIXEL, 10, brightness=1)
+pixels.fill((0, 0, 0))
+
+# light sensor
+rawlight = AnalogIn(board.LIGHT)
+
+def light():
+    peak = map_range(rawlight.value, 2000, 62000, 0, 1023)  # map to 0 to 1023
+    return int(peak)
+
+def wheel(pos):
+    # Input a value 0 to 255 to get a color value.
+    # The colours are a transition r - g - b - back to r.
+    if pos < 0 or pos > 255:
+        return 0, 0, 0
+    if pos < 85:
+        return int(255 - pos * 3), int(pos * 3), 0
+    if pos < 170:
+        pos -= 85
+        return 0, int(255 - pos * 3), int(pos * 3)
+    pos -= 170
+    return int(pos * 3), 0, int(255 - (pos * 3))
+    
+def rainbow(value):
+    for i in range(10):
+        pixels[i] = wheel((value * i) & 255)
+
+index = 0
+sign = 1
+
+while True:
+    while light() > 150:
+        if index > 246:
+            index = 0
+            sign = sign * -1
+        if sign == 1:
+            myservo.angle = int(index / 2)
+        else:
+            myservo.angle = 123 - int(index / 2)
+        if (index % 40) == 0 and not cpx_audio.playing:
+            play_file(random.choice(wavefiles))        
+        rainbow(index)
+        index += 1
+
+    # Turn things off if light level <= value above
+    pixels.fill((0, 0, 0))
+    myservo.angle = 0.0
+    cpx_audio.stop()