Create ufo.py

ufo/ufo.py

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+#  UFO Circuit Playground Express
+#  Plays UFO lights and sounds if the board is upside down only!
+
+from adafruit_circuitplayground.express import cpx
+import neopixel
+import board
+import time
+
+
+# The two files assigned to buttons A & B
+audiofiles = ["ufo.wav", "ufoUp.wav"]
+
+pixels = neopixel.NeoPixel(board.NEOPIXEL, 10, brightness=.8)
+
+def simpleCircle(wait, R, G, B): # timing, color values per channel
+
+    for i in range(10):
+        pixels[i] = ((0, 0, 0))
+        time.sleep(wait)
+
+    for i in range(10):
+        pixels[i] = ((R, G, B))
+        time.sleep(wait)
+
+# Main loop gets x, y and z axis acceleration, prints the values, and turns on
+# lights if the UFO is upside down, plays music
+
+while True:
+    R = 0
+    G = 0
+    B = 0
+    x, y, z = cpx.acceleration # read the accelerometer values
+    #  print(x, y, z)
+    R = 10 * (R + abs(int(x))) # scale up the accel values into color values
+    G = 10 * (G + abs(int(y)))
+    B = 10 * (B + abs(int(z)))
+    #  print(R, G, B)
+
+    # check for upside down state on z axis
+    if z < 0: # any negative number on z axis means it's upside down enough
+        simpleCircle(.03, R, G, B)
+        cpx.play_file(audiofiles[0])
+
+    else: # right side up, no colors or sound!
+        pixels.fill((0, 0, 0))