120 lines
3.8 KiB
Python
120 lines
3.8 KiB
Python
# SPDX-FileCopyrightText: 2021 Erin St Blaine for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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"""
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Crystal Chandelier with Circuit Playground BlueFruit
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Adafruit invests time and resources providing this open source code.
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Please support Adafruit and open source hardware by purchasing
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products from Adafruit!
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Written by Erin St Blaine & Limor Fried for Adafruit Industries
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Copyright (c) 2020-2021 Adafruit Industries
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Licensed under the MIT license.
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All text above must be included in any redistribution.
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"""
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# pylint: disable=import-error
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# pylint: disable=no-member
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import board
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import digitalio
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import rotaryio
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import neopixel
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from adafruit_circuitplayground import cp
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from adafruit_led_animation.group import AnimationGroup
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from adafruit_led_animation.animation.comet import Comet
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from adafruit_led_animation.animation.solid import Solid
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from adafruit_led_animation.color import (
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BLACK,
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PURPLE,
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)
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NEOPIXEL_PIN = board.A1 # NeoPixels connected here (crystals + rings)
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NUM_PIXELS = 92 # Number of pixels in the crystals and rings
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MIN_BRIGHTNESS = 1 # Minimum LED brightness as a percentage (0 to 100)
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MAX_BRIGHTNESS = 25 # Maximum LED brighrness as a percentage (0 to 100)
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MIN_FPS = 2 # Minimum animation speed in frames per second (>0)
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MAX_FPS = 8 # Maximum animation speed in frames per second (>0)
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# Set initial brightness and speed to center values
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BRIGHTNESS = (MIN_BRIGHTNESS + MAX_BRIGHTNESS) // 2
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FPS = (MIN_FPS + MAX_FPS) // 2
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SPEED = 1 / FPS # Integer frames-per-second to seconds interval
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LEVEL = BRIGHTNESS * 0.01 # Integer brightness percentage to 0.0-1.0 coeff.
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button = digitalio.DigitalInOut(board.A5)
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button.direction = digitalio.Direction.INPUT
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button.pull = digitalio.Pull.UP
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BUTTON_STATE = None
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BUTTON_VALUE = None
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PIXELS = neopixel.NeoPixel(NEOPIXEL_PIN, NUM_PIXELS, brightness=LEVEL,
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auto_write=False)
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# NeoPixels off ASAP on startup
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cp.pixels.fill(0) # Onboard pixels
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cp.pixels.show()
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PIXELS.fill(0) # NeoPixel strip
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PIXELS.show()
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ENCODER = rotaryio.IncrementalEncoder(board.A2, board.A3)
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# LED ANIMATIONS -----------------------------------------------------------
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COMET = Comet(PIXELS, speed=SPEED, tail_length=8,
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color=PURPLE, bounce=True)
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CP_COMET = Comet(cp.pixels, speed=SPEED, tail_length=8,
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color=PURPLE, bounce=True)
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DARK_RINGS = Solid(PIXELS, color=BLACK)
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DARK_CPB = Solid(cp.pixels, color=BLACK)
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DARK = AnimationGroup(
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DARK_RINGS,
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DARK_CPB,
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)
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# Animations Playlist, reorder as desired. AnimationGroups play at same time
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ANIMATIONS = AnimationGroup(
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COMET,
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CP_COMET,
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)
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# MAIN LOOP ----------------------------------------------------------------
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LAST_POSITION = ENCODER.position
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MODE = 1
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while True:
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POSITION = ENCODER.position
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if POSITION != LAST_POSITION:
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MOVE = POSITION - LAST_POSITION
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if cp.switch:
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FPS = max(MIN_FPS, min(FPS + MOVE, MAX_FPS))
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SPEED = 1.0 / FPS
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COMET.speed = SPEED
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print("comet speed = ", SPEED)
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else:
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BRIGHTNESS = max(MIN_BRIGHTNESS, min(BRIGHTNESS + MOVE,
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MAX_BRIGHTNESS))
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LEVEL = BRIGHTNESS * 0.1
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if LEVEL > 1:
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LEVEL = 1
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cp.pixels.brightness = LEVEL
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PIXELS.brightness = LEVEL
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print("brightness = ", LEVEL)
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LAST_POSITION = POSITION
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if not BUTTON_VALUE and BUTTON_STATE is None:
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BUTTON_STATE = "pressed"
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if BUTTON_VALUE and BUTTON_STATE == "pressed":
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print("Button pressed.")
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if MODE == 1:
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MODE = 2
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else:
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MODE = 1
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BUTTON_STATE = None
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if MODE == 1:
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ANIMATIONS.animate()
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else:
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DARK.animate()
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