Merge pull request adafruit#1277 from adafruit/frank

Adding code and .stl for NeoPixel Frankenstein Learn guide

Author: ladyada

NeoPixel_Frankenstein/code.py

@@ -0,0 +1,87 @@
+import time
+import board
+import touchio
+import neopixel
+from adafruit_led_animation.animation.pulse import Pulse
+from adafruit_led_animation.color import (
+    RED,
+    YELLOW,
+    ORANGE,
+    GREEN,
+    TEAL,
+    CYAN,
+    BLUE,
+    PURPLE,
+    MAGENTA,
+    GOLD,
+    PINK,
+    AQUA,
+    JADE,
+    AMBER
+)
+
+#  NeoPixel pin
+pixel_pin = board.A3
+#  number of NeoPixels
+pixel_num = 68
+
+#  NeoPixels setup
+pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.5, auto_write=False)
+
+#  animation setup
+pulse = Pulse(pixels, speed=0.1, color=RED, period=5)
+
+#  two cap touch pins
+touch_left = board.A1
+touch_right = board.A2
+
+#  cap touch setup
+bolt_left = touchio.TouchIn(touch_left)
+bolt_right = touchio.TouchIn(touch_right)
+
+#  NeoPixel colors for animation
+colors = [RED, YELLOW, ORANGE, GREEN, TEAL, CYAN, BLUE,
+          PURPLE, MAGENTA, GOLD, PINK, AQUA, JADE, AMBER]
+
+#  variable for color array index
+c = 0
+
+#  debounce states for cap touch
+bolt_left_state = False
+bolt_right_state = False
+
+while True:
+    #  run animation
+    pulse.animate()
+
+    #  debounce for cap touch
+    if not bolt_left.value and not bolt_left_state:
+        bolt_left_state = True
+    if not bolt_right.value and not bolt_right_state:
+        bolt_right_state = True
+
+    #  if the left bolt is touched...
+    if bolt_left.value and bolt_left_state:
+        print("Touched left bolt!")
+        #  increase color array index by 1
+        c += 1
+        #  reset debounce state
+        bolt_left_state = False
+    #  if the right bolt is touched...
+    if bolt_right.value and bolt_right_state:
+        print("Touched right bolt!")
+        #  decrease color array index by 1
+        c -= 1
+        #  reset debounce state
+        bolt_right_state = False
+    #  if the color array index is bigger than 13...
+    if c > 13:
+        #  reset it to 0
+        c = 0
+    #  if the color array index is smaller than 0...
+    if c < 0:
+        #  reset it to 13
+        c = 13
+    #  update animation color to current array index
+    pulse.color = colors[c]
+    time.sleep(0.01)