Adding example files.

Author: kattni

examples/led_animation_blink.py

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+"""
+This example blinks the LEDs purple at a 0.5 second interval.
+
+For QT Py and a NeoPixel strip. Update pixel_pin and pixel_num to match your wiring if using
+a different board or form of NeoPixels.
+
+This example will run on SAMD21 (M0) Express boards (such as Circuit Playground Express or QT Py
+Haxpress), but not on SAMD21 non-Express boards (such as QT Py or Trinket).
+"""
+import board
+import neopixel
+
+from adafruit_led_animation.animation.blink import Blink
+from adafruit_led_animation.color import PURPLE
+
+# Update to match the pin connected to your NeoPixels
+pixel_pin = board.A3
+# Update to match the number of NeoPixels you have connected
+pixel_num = 30
+
+pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.5, auto_write=False)
+
+blink = Blink(pixels, speed=0.5, color=PURPLE)
+
+while True:
+    blink.animate()

examples/led_animation_chase.py

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+"""
+This example animates a theatre chase style animation in white with a repeated 3 LEDs lit up at a
+spacing of six LEDs off.
+
+For QT Py and a NeoPixel strip. Update pixel_pin and pixel_num to match your wiring if using
+a different board or form of NeoPixels.
+
+This example will run on SAMD21 (M0) Express boards (such as Circuit Playground Express or QT Py
+Haxpress), but not on SAMD21 non-Express boards (such as QT Py or Trinket).
+"""
+import board
+import neopixel
+
+from adafruit_led_animation.animation.chase import Chase
+from adafruit_led_animation.color import WHITE
+
+# Update to match the pin connected to your NeoPixels
+pixel_pin = board.A3
+# Update to match the number of NeoPixels you have connected
+pixel_num = 30
+
+pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.5, auto_write=False)
+
+chase = Chase(pixels, speed=0.1, size=3, spacing=6, color=WHITE)
+
+while True:
+    chase.animate()

examples/led_animation_comet.py

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+"""
+This example animates a jade comet that bounces from end to end of the strip.
+
+For QT Py and a NeoPixel strip. Update pixel_pin and pixel_num to match your wiring if using
+a different board or form of NeoPixels.
+
+This example will run on SAMD21 (M0) Express boards (such as Circuit Playground Express or QT Py
+Haxpress), but not on SAMD21 non-Express boards (such as QT Py or Trinket).
+"""
+import board
+import neopixel
+
+from adafruit_led_animation.animation.comet import Comet
+from adafruit_led_animation.color import JADE
+
+# Update to match the pin connected to your NeoPixels
+pixel_pin = board.A3
+# Update to match the number of NeoPixels you have connected
+pixel_num = 30
+
+pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.5, auto_write=False)
+
+comet = Comet(pixels, speed=0.02, color=JADE, tail_length=10, bounce=True)
+
+while True:
+    comet.animate()

examples/led_animation_samd21_reset_interval.py

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+"""
+This example shows how to reset the microcontroller to avoid the animation slowing down over time
+due to the limitations of CircuitPython for the SAMD21 (M0) microcontroller. The example
+animates a purple comet that bounces from end to end of the strip, and resets the board if the
+specified amount of time has passed since the board was last reset.
+
+See this FAQ for details:
+
+For QT Py and a NeoPixel strip. Update pixel_pin and pixel_num to match your wiring if using
+a different board or form of NeoPixels.
+
+This example will run on SAMD21 (M0) Express boards (such as Circuit Playground Express or QT Py
+Haxpress), but not on SAMD21 non-Express boards (such as QT Py or Trinket).
+"""
+import time
+import microcontroller
+import board
+import neopixel
+
+from adafruit_led_animation.animation.comet import Comet
+from adafruit_led_animation.color import PURPLE
+
+# Update to match the pin connected to your NeoPixels
+pixel_pin = board.A3
+# Update to match the number of NeoPixels you have connected
+pixel_num = 30
+
+pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.5, auto_write=False)
+
+comet = Comet(pixels, speed=0.02, color=PURPLE, tail_length=10, bounce=True)
+
+while True:
+    comet.animate()
+
+    if time.monotonic() > 3600:  # After an hour passes, reset the board.
+        microcontroller.reset()