72 lines
1.9 KiB
Python
72 lines
1.9 KiB
Python
# SPDX-FileCopyrightText: 2017 Scott Shawcroft, written for Adafruit Industries
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# SPDX-FileCopyrightText: Copyright (c) 2021 Arofarn
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#
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# SPDX-License-Identifier: MIT
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import time
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from board import SCL, SDA
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import busio
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from adafruit_neotrellis.neotrellis import NeoTrellis
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from adafruit_neotrellis.multitrellis import MultiTrellis
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from neotrellism4 import NeoTrellisM4
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# Create the i2c object for the trellis
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I2C = busio.I2C(SCL, SDA)
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# Create the trellis. This is for a 2x2 array of TrellisM4 (first row) with
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# 2 Neotrellis (second row).
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#
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# [ NeoM4_left | NeoM4_right ]
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# neotrellis0 | neotrellis1
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trellim4_left = NeoTrellisM4()
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trellim4_right = NeoTrellisM4(left_part=trellim4_left)
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trelli = [
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[trellim4_left, trellim4_right],
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[NeoTrellis(I2C, False, addr=0x2F), NeoTrellis(I2C, False, addr=0x2E)],
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]
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trellis = MultiTrellis(trelli)
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# some color definitions
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OFF = (0, 0, 0)
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RED = (127, 0, 0)
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YELLOW = (127, 75, 0)
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GREEN = (0, 127, 0)
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CYAN = (0, 127, 127)
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BLUE = (0, 0, 127)
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PURPLE = (90, 0, 127)
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# this will be called when button events are received
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def blink(xcoord, ycoord, edge):
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"""Turn the LED on when a rising edge is detected or
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turn the LED off when a falling edge is detected
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"""
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if edge == NeoTrellis.EDGE_RISING:
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trellis.color(xcoord, ycoord, BLUE)
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elif edge == NeoTrellis.EDGE_FALLING:
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trellis.color(xcoord, ycoord, OFF)
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for y in range(8):
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for x in range(8):
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# activate rising edge events on all keys
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print(x, y)
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trellis.activate_key(x, y, NeoTrellis.EDGE_RISING)
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# activate falling edge events on all keys
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trellis.activate_key(x, y, NeoTrellis.EDGE_FALLING)
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trellis.set_callback(x, y, blink)
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trellis.color(x, y, PURPLE)
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time.sleep(0.05)
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for y in range(8):
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for x in range(8):
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trellis.color(x, y, OFF)
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time.sleep(0.05)
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while True:
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# the trellis can only be read every 17 millisecons or so
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trellis.sync()
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time.sleep(0.02)
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