Small fixes and add group example.

adafruit_led_animation/group.py

@@ -50,13 +50,54 @@
 
 class AnimationGroup:
     """
-    A group of animations that are active together. An example would be grouping a strip of
-    pixels connected to a board and the onboard LED.
+    AnimationGroup synchronizes multiple animations.  Allows for multiple animations to be kept in
+    sync, whether or not the same animation or pixel object is in use.
 
     :param members: The animation objects or groups.
-    :param bool sync: Synchronises the timing of all members of the group to the settings of the
-                      first member of the group. Defaults to ``False``.
-
+    :param bool sync: Synchronises when draw is called for all members of the group to the settings
+                      of the first member of the group. Defaults to ``False``.
+
+
+    Example:
+
+        .. code-block::
+
+            import board
+            import neopixel
+            from adafruit_circuitplayground import cp
+            from adafruit_led_animation.animation.blink import Blink
+            from adafruit_led_animation.animation.comet import Comet
+            from adafruit_led_animation.animation.chase import Chase
+            from adafruit_led_animation.group import AnimationGroup
+            from adafruit_led_animation.sequence import AnimationSequence
+
+            import adafruit_led_animation.color as color
+
+            strip_pixels = neopixel.NeoPixel(board.A1, 30, brightness=0.5, auto_write=False)
+            cp.pixels.brightness = 0.5
+
+            animations = AnimationSequence(
+                # Synchronized to 0.5 seconds. Ignores the second animation setting of 3 seconds.
+                AnimationGroup(
+                    Blink(cp.pixels, 0.5, color.CYAN),
+                    Blink(strip_pixels, 3.0, color.AMBER),
+                    sync=True,
+                ),
+                # Different speeds
+                AnimationGroup(
+                    Comet(cp.pixels, 0.1, color.MAGENTA, tail_length=5),
+                    Comet(strip_pixels, 0.01, color.MAGENTA, tail_length=15),
+                ),
+                # Sequential animations on the built-in NeoPixels then the NeoPixel strip
+                Chase(cp.pixels, 0.05, size=2, spacing=3, color=color.PURPLE),
+                Chase(strip_pixels, 0.05, size=2, spacing=3, color=color.PURPLE),
+                advance_interval=3.0,
+                auto_clear=True,
+                auto_reset=True,
+            )
+
+            while True:
+                animations.animate()
     """
 
     def __init__(self, *members, sync=False, name=None):

examples/led_animation_all_animations.py

@@ -29,7 +29,7 @@
 # Update to match the number of NeoPixels you have connected
 pixel_num = 32
 
-pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.2, auto_write=False)
+pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.5, auto_write=False)
 
 blink = Blink(pixels, speed=0.5, color=JADE)
 colorcycle = ColorCycle(pixels, speed=0.4, colors=[MAGENTA, ORANGE])
@@ -41,7 +41,7 @@
 rainbow = Rainbow(pixels, speed=0.1, period=2)
 sparkle_pulse = SparklePulse(pixels, speed=0.1, period=3, color=JADE)
 rainbow_comet = RainbowComet(pixels, speed=0.1, tail_length=7, bounce=True)
-rainbow_chase = RainbowChase(pixels, speed=0.1, size=3, spacing=2, wheel_step=8)
+rainbow_chase = RainbowChase(pixels, speed=0.1, size=3, spacing=2, step=8)
 rainbow_sparkle = RainbowSparkle(pixels, speed=0.1, num_sparkles=15)
 
 

examples/led_animation_basic_animations.py

@@ -32,7 +32,7 @@
 # Update to match the number of NeoPixels you have connected
 pixel_num = 32
 
-pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.2, auto_write=False)
+pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.5, auto_write=False)
 
 solid = Solid(pixels, color=PINK)
 blink = Blink(pixels, speed=0.5, color=JADE)

examples/led_animation_group.py

@@ -0,0 +1,51 @@
+"""
+This example shows three different ways to use AnimationGroup: syncing two animations, displaying
+two animations at different speeds, and displaying two animations sequentially, across two separate
+pixel objects such as the built-in NeoPixels on a Circuit Playground Bluefruit and a NeoPixel strip.
+
+This example is written for Circuit Playground Bluefruit and a 30-pixel NeoPixel strip connected to
+pad A1. It does not work on Circuit Playground Express.
+"""
+import board
+import neopixel
+from adafruit_circuitplayground import cp
+
+from adafruit_led_animation.animation.blink import Blink
+from adafruit_led_animation.animation.comet import Comet
+from adafruit_led_animation.animation.chase import Chase
+
+from adafruit_led_animation.group import AnimationGroup
+from adafruit_led_animation.sequence import AnimationSequence
+
+import adafruit_led_animation.color as color
+
+strip_pixels = neopixel.NeoPixel(board.A1, 30, brightness=0.5, auto_write=False)
+cp.pixels.brightness = 0.5
+
+animations = AnimationSequence(
+    # Synchronized to 0.5 seconds. Ignores the second animation setting of 3 seconds.
+    AnimationGroup(
+        Blink(cp.pixels, 0.5, color.CYAN),
+        Blink(strip_pixels, 3.0, color.AMBER),
+        sync=True,
+    ),
+    # Different speeds
+    AnimationGroup(
+        Comet(cp.pixels, 0.1, color.MAGENTA, tail_length=5),
+        Comet(strip_pixels, 0.01, color.MAGENTA, tail_length=15),
+    ),
+    # Different animations
+    AnimationGroup(
+        Blink(cp.pixels, 0.5, color.JADE),
+        Comet(strip_pixels, 0.05, color.TEAL, tail_length=15),
+    ),
+    # Sequential animations on the built-in NeoPixels then the NeoPixel strip
+    Chase(cp.pixels, 0.05, size=2, spacing=3, color=color.PURPLE),
+    Chase(strip_pixels, 0.05, size=2, spacing=3, color=color.PURPLE),
+    advance_interval=3.0,
+    auto_clear=True,
+    auto_reset=True,
+)
+
+while True:
+    animations.animate()

examples/led_animation_pixel_map.py

@@ -25,7 +25,7 @@
 # Update to match the number of NeoPixels you have connected
 pixel_num = 32
 
-pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.2, auto_write=False)
+pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.5, auto_write=False)
 
 pixel_wing_vertical = helper.PixelMap.vertical_lines(
     pixels, 8, 4, helper.horizontal_strip_gridmap(8, alternating=False)

examples/led_animation_rainbow_animations.py

@@ -21,7 +21,7 @@
 # Update to match the number of NeoPixels you have connected
 pixel_num = 32
 
-pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.2, auto_write=False)
+pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.5, auto_write=False)
 
 rainbow = Rainbow(pixels, speed=0.1, period=2)
 rainbow_chase = RainbowChase(pixels, speed=0.1, size=5, spacing=3)

examples/led_animation_sequence.py

@@ -19,7 +19,7 @@
 # Update to match the number of NeoPixels you have connected
 pixel_num = 32
 
-pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.1, auto_write=False)
+pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.5, auto_write=False)
 
 blink = Blink(pixels, speed=0.5, color=JADE)
 comet = Comet(pixels, speed=0.01, color=PURPLE, tail_length=10, bounce=True)

examples/led_animation_simpletest.py

@@ -14,7 +14,7 @@
 # Update to match the number of NeoPixels you have connected
 pixel_num = 32
 
-pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.2, auto_write=False)
+pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.5, auto_write=False)
 
 blink = Blink(pixels, speed=0.5, color=RED)
 

examples/led_animation_sparkle_animations.py

@@ -18,7 +18,7 @@
 # Update to match the number of NeoPixels you have connected
 pixel_num = 32
 
-pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.2, auto_write=False)
+pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.5, auto_write=False)
 
 sparkle = Sparkle(pixels, speed=0.05, color=AMBER, num_sparkles=10)
 sparkle_pulse = SparklePulse(pixels, speed=0.05, period=3, color=JADE)