Merge pull request #1498 from kattni/neopixel-template

Adding NeoPixel template code.

Author: ladyada

CircuitPython_Templates/neopixel_blink.py

@@ -0,0 +1,26 @@
+"""
+CircuitPython NeoPixel Blink example - blinking the built-in NeoPixel(s).
+
+Update NUMBER_OF_PIXELS to the match the number of built-in NeoPixels on the board.
+
+DO NOT INCLUDE THE pylint: disable LINE IN THE GUIDE CODE. It is present only to deal with the
+NUMBER_OF_PIXELS variable being undefined in this pseudo-code. As you will be updating the variable
+in the guide, you will not need the pylint: disable.
+
+For example:
+If you are using a QT Py, change NUMBER_OF_PIXELS to 1.
+If using a Neo Trinkey, change NUMBER_OF_PIXELS to 4.
+"""
+# pylint: disable=undefined-variable
+
+import time
+import board
+import neopixel
+
+pixel = neopixel.NeoPixel(board.NEOPIXEL, NUMBER_OF_PIXELS)
+
+while True:
+    pixel.fill((255, 0, 0))
+    time.sleep(0.5)
+    pixel.fill((0, 0, 0))
+    time.sleep(0.5)