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68 lines
1.9 KiB
68 lines
1.9 KiB
import time
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import board
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import digitalio
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import gc
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import busio
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from adafruit_hid.keyboard import Keyboard
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from adafruit_hid.keycode import Keycode
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from adafruit_hid.mouse import Mouse
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from adafruit_neotrellis.neotrellis import NeoTrellis
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#create the i2c object for the trellis
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i2c_bus = busio.I2C(board.SCL, board.SDA)
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#create the trellis
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trellis = NeoTrellis(i2c_bus)
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SWITCH_PINS = (board.D5, board.D6, board.D9, board.D10, board.D11, board.D12, board.A1)
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BOUNCE_SECS = 0.100
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gc.collect()
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print(gc.mem_free())
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switch_ins = tuple(digitalio.DigitalInOut(pin) for pin in SWITCH_PINS)
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for switch_in in switch_ins:
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switch_in.switch_to_input(pull=digitalio.Pull.UP)
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kbd = Keyboard()
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OFF = (1, 0, 0)
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LIT = (40, 20, 0)
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states = {}
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def toggle(event):
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#turn the LED on when a rising edge is detected
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if event.edge == NeoTrellis.EDGE_RISING:
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states[event.number] = not states[event.number]
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for state, value in states.items():
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if value:
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trellis.pixels[state] = LIT
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else:
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trellis.pixels[state] = OFF
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for i in range(16):
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states[i] = False
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#activate rising edge events on all keys
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trellis.activate_key(i, NeoTrellis.EDGE_RISING)
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#activate falling edge events on all keys
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trellis.activate_key(i, NeoTrellis.EDGE_FALLING)
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#set all keys to trigger the blink callback
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trellis.callbacks[i] = toggle
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"""Start shortcut processing. Run forever."""
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while True:
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for switch, switch_in in enumerate(switch_ins):
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trellis.sync()
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if not switch_in.value:
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# If switch is pressed, it's pulled low. Debounce by waiting for bounce time.
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time.sleep(BOUNCE_SECS)
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print('switch: ', switch)
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print(gc.mem_free())
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kbd.send(Keycode.LEFT_GUI, Keycode.TAB)
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# Wait for switch to be released.
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while not switch_in.value:
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pass
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