Source code for adafruit_featherwing.neopixel_featherwing

# SPDX-FileCopyrightText: 2019 Melissa LeBlanc-Williams for Adafruit Industries
#
# SPDX-License-Identifier: MIT

"""
`adafruit_featherwing.neopixel_featherwing`
====================================================

Helper for using the `NeoPixel FeatherWing <https://www.adafruit.com/product/2945>`_.

* Author(s): Melissa LeBlanc-Williams
"""

__version__ = "0.0.0-auto.0"
__repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_FeatherWing.git"

import board
import neopixel
from adafruit_featherwing.pixelmatrix import PixelMatrix


[docs]class NeoPixelFeatherWing(PixelMatrix): """Class representing a `NeoPixel FeatherWing <https://www.adafruit.com/product/2945>`_. The feather uses pins D6 by default""" def __init__(self, pixel_pin=board.D6, brightness=0.1): """ :param pin pixel_pin: The pin for the featherwing :param float brightness: Optional brightness (0.0-1.0) that defaults to 1.0 """ super().__init__() self.rows = 4 self.columns = 8 self._matrix = neopixel.NeoPixel( pixel_pin, self.rows * self.columns, brightness=brightness, auto_write=False, pixel_order=neopixel.GRB, )
[docs] def shift_up(self, rotate=False): """ Shift all pixels up :param rotate: (Optional) Rotate the shifted pixels to bottom (default=False) This example shifts 2 pixels up .. code-block:: python import time from adafruit_featherwing import neopixel_featherwing neopixel = neopixel_featherwing.NeoPixelFeatherWing() # Draw Red and Green Pixels neopixel[4, 1] = (255, 0, 0) neopixel[5, 1] = (0, 255, 0) # Rotate it off the screen for i in range(0, neopixel.rows - 1): neopixel.shift_up(True) time.sleep(.1) time.sleep(1) # Shift it off the screen for i in range(0, neopixel.rows - 1): neopixel.shift_up() time.sleep(.1) """ super().shift_down(rotate) # Up and down are reversed
[docs] def shift_down(self, rotate=False): """ Shift all pixels down. :param rotate: (Optional) Rotate the shifted pixels to top (default=False) This example shifts 2 pixels down .. code-block:: python import time from adafruit_featherwing import neopixel_featherwing neopixel = neopixel_featherwing.NeoPixelFeatherWing() # Draw Red and Green Pixels neopixel[4, 1] = (255, 0, 0) neopixel[5, 1] = (0, 255, 0) # Rotate it off the screen for i in range(0, neopixel.rows - 1): neopixel.shift_down(True) time.sleep(.1) time.sleep(1) # Shift it off the screen for i in range(0, neopixel.rows - 1): neopixel.shift_down() time.sleep(.1) """ super().shift_up(rotate) # Up and down are reversed