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106 lines
3.3 KiB
Python
106 lines
3.3 KiB
Python
4 years ago
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"""For a detailed guide on all the features of the Circuit Playground Express (cpx) library:
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https://adafru.it/cp-made-easy-on-cpx"""
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import time
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import microcontroller
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from adafruit_circuitplayground.express import cpx
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# Set TONE_PIANO to True to enable a tone piano on the touch pads!
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TONE_PIANO = True
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LIGHTS = False
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# Set this as a float from 0 to 1 to change the brightness. The decimal represents a percentage.
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# So, 0.3 means 30% brightness!
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cpx.pixels.brightness = 0.1
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# Changes to NeoPixel state will not happen without explicitly calling show()
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cpx.pixels.auto_write = True
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# Startup behavior is based on your board's unique ID!
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# uid returns a bytearray. The individual numbers are summed then modulo by 3.
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# board_id = sum(microcontroller.cpu.uid) % 3
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board_id = 1
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def toggle_lights():
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if cpx.switch:
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LIGHTS = True
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else:
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LIGHTS = False
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def color_wheel(pos):
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# Input a value 0 to 255 to get a color value.
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# The colours are a transition red - green - blue - back to red.
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if pos < 0 or pos > 255:
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return (0, 0, 0)
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if pos < 85:
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return (int(255 - pos*3), int(pos*3), 0)
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if pos < 170:
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pos -= 85
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return (0, int(255 - pos*3), int(pos*3))
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pos -= 170
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return (int(pos * 3), 0, int(255 - (pos*3)))
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# Digi-Key colors: red and white!
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digi_key_colors = ((255, 0, 0), (180, 180, 150))
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# Python colors: blue and yellow!
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python_colors = ((32, 64, 255), (255, 180, 20))
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color_index = 0
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pixel_number = 0
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# time.monotonic() allows for non-blocking LED animations!
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start = time.monotonic()
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while True:
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now = time.monotonic()
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#if board_id == 0:
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if cpx.switch and LIGHTS:
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# Flash Digi-Key colors!
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if now - start > 0.5:
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color_index = (color_index + 1) % len(digi_key_colors)
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cpx.pixels.fill(digi_key_colors[color_index])
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cpx.pixels.show()
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start = now
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elif board_id == 1 and LIGHTS:
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# Flash Python colors!
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if now - start > 0.5:
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color_index = (color_index + 1) % len(python_colors)
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cpx.pixels.fill(python_colors[color_index])
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cpx.pixels.show()
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start = now
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elif board_id == 2 and LIGHTS:
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# Red-comet rainbow swirl!
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pixel_number = (pixel_number + 1) % 10
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for p in range(10):
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color = color_wheel(25 * ((pixel_number + p) % 10))
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cpx.pixels[p] = tuple([int(c * (10 - (pixel_number + p) % 10) / 10.0) for c in color])
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cpx.pixels.show()
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# If the switch is to the left, it returns True!
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cpx.red_led = cpx.switch
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# Press the buttons to play sounds!
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if cpx.button_a:
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cpx.play_file("low_fade.wav")
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elif cpx.button_b:
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cpx.play_file("low_fade.wav")
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# Set TONE_PIANO to True above to enable a tone piano on the touch pads!
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if TONE_PIANO:
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if cpx.touch_A1:
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#cpx.start_tone(262)
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cpx.play_file("low_fade.wav")
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elif cpx.touch_A2:
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cpx.start_tone(294)
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elif cpx.touch_A3:
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cpx.start_tone(330)
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elif cpx.touch_A4:
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cpx.start_tone(349)
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elif cpx.touch_A5:
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cpx.start_tone(392)
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elif cpx.touch_A6:
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cpx.play_tone(440, 2.0)
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elif cpx.touch_A7:
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cpx.start_tone(494)
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else:
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cpx.stop_tone()
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