Merge pull request #8 from adafruit/rainbowio

Update examples to use rainbowio

Author: dhalbert

README.rst

@@ -59,7 +59,7 @@ Usage Example
 
 .. code:: python
 
-    """This demo connects to a magic light and has it do a color wheel."""
+    """This demo connects to a magic light and has it do a colorwheel."""
     import adafruit_ble
     import _bleio
 
@@ -82,19 +82,6 @@ Usage Example
     # Start advertising before messing with the display so that we can connect immediately.
     radio = adafruit_ble.BLERadio()
 
-    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 (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)
-
     active_connection, pixels = find_connection()
     current_notification = None
     app_icon_file = None
@@ -114,7 +101,7 @@ Usage Example
 
         i = 0
         while active_connection.connected:
-            pixels[0] = wheel(i % 256)
+            pixels[0] = colorwheel(i % 256)
             i += 1
 
         active_connection = None

examples/ble_magic_light_simpletest.py

@@ -1,7 +1,8 @@
 # SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
 # SPDX-License-Identifier: MIT
 
-"""This demo connects to a magic light and has it do a color wheel."""
+"""This demo connects to a magic light and has it do a colorwheel."""
+from rainbowio import colorwheel
 import adafruit_ble
 import _bleio
 
@@ -26,21 +27,6 @@ def find_connection():
 # Start advertising before messing with the display so that we can connect immediately.
 radio = adafruit_ble.BLERadio()
 
-
-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 (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)
-
-
 active_connection, pixels = find_connection()
 current_notification = None
 app_icon_file = None
@@ -60,7 +46,7 @@ def wheel(pos):
 
     i = 0
     while active_connection.connected:
-        pixels[0] = wheel(i % 256)
+        pixels[0] = colorwheel(i % 256)
         i += 1
 
     active_connection = None