Merge pull request #1795 from adafruit/PyLeap-NeoPixel-demo

Updated PyLeap Demo Code

Author: kattni

PyLeap_NeoPixel_demo/code.py

@@ -3,10 +3,27 @@
 import neopixel
 
 pixels = neopixel.NeoPixel(board.NEOPIXEL, 10, brightness=0.2, auto_write=False)
+rainbow_cycle_demo = 1
+
+def colorwheel(pos):
+            if pos < 0 or pos > 255:
+                return (0, 0, 0)
+            if pos < 85:
+                return (255 - pos * 3, pos * 3, 0)
+            if pos < 170:
+                pos -= 85
+                return (0, 255 - pos * 3, pos * 3)
+            pos -= 170
+            return (pos * 3, 0, 255 - pos * 3)
+
+def rainbow_cycle(wait):
+            for j in range(255):
+                for i in range(10):
+                    rc_index = (i * 256 // 10) + j * 5
+                    pixels[i] = colorwheel(rc_index & 255)
+                pixels.show()
+                time.sleep(wait)
 
 while True:
-    for j in range(255):
-        for i in range(len(pixels)):
-            rc_index = (i * 256 // len(pixels)) + j
-            pixels[i] = neopixel._pixelbuf.wheel(rc_index)
-        pixels.show()
+            if rainbow_cycle_demo:
+                rainbow_cycle(0.05)