82 lines
2.3 KiB
Python
82 lines
2.3 KiB
Python
# SPDX-FileCopyrightText: 2020 Kattni Rembor for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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"""
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`adafruit_led_animation.animation.pulse`
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================================================================================
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Pulse animation for CircuitPython helper library for LED animations.
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* Author(s): Kattni Rembor
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Implementation Notes
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--------------------
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**Hardware:**
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* `Adafruit NeoPixels <https://www.adafruit.com/category/168>`_
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* `Adafruit DotStars <https://www.adafruit.com/category/885>`_
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**Software and Dependencies:**
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* Adafruit CircuitPython firmware for the supported boards:
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https://circuitpython.org/downloads
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"""
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from adafruit_led_animation.animation import Animation
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class Pulse(Animation):
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"""
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Pulse all pixels a single color.
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:param pixel_object: The initialised LED object.
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:param float speed: Animation refresh rate in seconds, e.g. ``0.1``.
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:param color: Animation color in ``(r, g, b)`` tuple, or ``0x000000`` hex format.
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:param period: Period to pulse the LEDs over. Default 5.
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:param breath: Duration to hold minimum and maximum intensity levels. Default 0.
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:param min_intensity: Lowest brightness level of the pulse. Default 0.
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:param max_intensity: Highest brightness elvel of the pulse. Default 1.
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"""
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# pylint: disable=too-many-arguments
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def __init__(
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self,
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pixel_object,
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speed,
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color,
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period=5,
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breath=0,
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min_intensity=0,
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max_intensity=1,
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name=None,
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):
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super().__init__(pixel_object, speed, color, name=name)
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self._period = period
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self.breath = breath
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self.min_intensity = min_intensity
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self.max_intensity = max_intensity
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self._generator = None
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self.reset()
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on_cycle_complete_supported = True
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def draw(self):
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color = next(self._generator)
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self.pixel_object.fill(color)
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def reset(self):
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"""
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Resets the animation.
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"""
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dotstar = len(self.pixel_object[0]) == 4 and isinstance(
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self.pixel_object[0][-1], float
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)
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from adafruit_led_animation.pulse_generator import ( # pylint: disable=import-outside-toplevel
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pulse_generator,
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)
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self._generator = pulse_generator(self._period, self, dotstar_pwm=dotstar)
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