56 lines
1.5 KiB
Python
56 lines
1.5 KiB
Python
# SPDX-FileCopyrightText: 2018 Anne Barela for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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# Simple paint program for Trellis M4 Express
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# Press any button it will cycle through a palette of colors!
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#
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# Anne Barela for Adafruit Industries November, 2018
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#
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import time
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import adafruit_trellism4
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trellis = adafruit_trellism4.TrellisM4Express()
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# See https://www.w3schools.com/colors/colors_picker.asp
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RED = 0xFF0000
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ORANGE = 0xB34700
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YELLOW = 0xFFFF00
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OLIVE = 0x66DD00
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GREEN = 0x008000
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AQUA = 0x00FF66
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TEAL = 0x00BFFF
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BLUE = 0x0080FF
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NAVY = 0x000080
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MAROON = 0x800000
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PURPLE = 0x800080
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PINK = 0xFF66B3
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WHITE = 0xFFFFFF
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BLACK = 0x000000
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color_cycle = [BLACK, RED, ORANGE, YELLOW, OLIVE, GREEN, AQUA,
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TEAL, BLUE, NAVY, MAROON, PURPLE, PINK, WHITE]
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colors = 13 # Number of colors in color_cycle
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key_state = [0 for _ in range(32)] # All keys are color 0 (BLACK)
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trellis.pixels.fill(BLACK) # Turn off all pixels
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current_press = set()
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while True:
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pressed = set(trellis.pressed_keys)
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for press in pressed - current_press:
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if press:
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print("Pressed:", press)
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x, y = press
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pixel = (press[1] * 8) + press[0]
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if key_state[pixel] == colors: # If we're at white
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key_state[pixel] = 0 # Set back to black
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else:
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key_state[pixel] += 1 # Use next color
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# Change the pushed pixel to the next color
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trellis.pixels[x, y] = color_cycle[key_state[pixel]]
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time.sleep(0.08)
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current_press = pressed
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