69 lines
1.9 KiB
Python
69 lines
1.9 KiB
Python
import time
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from adafruit_neotrellis.neotrellism4 import NeoTrellisM4
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#create the trellis
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trellis_left = NeoTrellisM4()
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trellis_right = NeoTrellisM4(left_part=trellis_left)
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#some color definitions
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OFF = (0, 0, 0)
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RED = (255, 0, 0)
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YELLOW = (255, 150, 0)
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GREEN = (0, 255, 0)
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CYAN = (0, 255, 255)
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BLUE = (0, 0, 255)
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PURPLE = (180, 0, 255)
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#this will be called when button events are received
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def blink(event):
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#turn the LED on when a rising edge is detected
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if event.edge == NeoTrellisM4.EDGE_RISING:
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trellis_left.pixels[event.number] = CYAN
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#turn the LED off when a rising edge is detected
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elif event.edge == NeoTrellisM4.EDGE_FALLING:
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trellis_left.pixels[event.number] = OFF
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for i in range(16):
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#activate rising edge events on all keys
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trellis_left.activate_key(i, NeoTrellisM4.EDGE_RISING)
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#activate falling edge events on all keys
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trellis_left.activate_key(i, NeoTrellisM4.EDGE_FALLING)
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#set all keys to trigger the blink callback
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trellis_left.callbacks[i] = blink
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#cycle the LEDs on startup
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trellis_left.pixels[i] = PURPLE
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time.sleep(.05)
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for i in range(16):
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trellis_left.pixels[i] = OFF
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time.sleep(.05)
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for i in range(16):
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#activate rising edge events on all keys
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trellis_right.activate_key(i, NeoTrellisM4.EDGE_RISING)
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#activate falling edge events on all keys
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trellis_right.activate_key(i, NeoTrellisM4.EDGE_FALLING)
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#set all keys to trigger the blink callback
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trellis_right.callbacks[i] = blink
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#cycle the LEDs on startup
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trellis_right.pixels[i] = PURPLE
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time.sleep(.05)
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for i in range(16):
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trellis_right.pixels[i] = OFF
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time.sleep(.05)
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#print(trellis.callbacks)
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time.sleep(2)
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while True:
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#call the sync function call any triggered callbacks
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trellis_left.sync()
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trellis_right.sync()
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#the trellis can only be read every 17 millisecons or so
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time.sleep(.02)
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