75 lines
2.9 KiB
Python
75 lines
2.9 KiB
Python
# Simple NEC remote decode-and-type keyboard example
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# When used with the Adafruit NEC remote will act like a keyboard and
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# type out keypresses.
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import time
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import adafruit_irremote
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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.keyboard_layout_us import KeyboardLayoutUS
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import adafruit_dotstar
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import pulseio
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import board
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led = adafruit_dotstar.DotStar(board.APA102_SCK, board.APA102_MOSI, 1)
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# The keyboard object!
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time.sleep(1) # Sleep for a bit to avoid a race condition on some systems
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keyboard = Keyboard()
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keyboard_layout = KeyboardLayoutUS(keyboard) # We're in the US :)
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# our infrared pulse decoder helpers
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pulsein = pulseio.PulseIn(board.REMOTEIN, maxlen=120, idle_state=True)
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decoder = adafruit_irremote.GenericDecode()
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# size must match what you are decoding! for NEC use 4
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received_code = bytearray(4)
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# Make a list of lists with the IR code expected and our keypress out's
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infrared_to_key = (
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([255, 2, 191, 64], (Keycode.LEFT_CONTROL, Keycode.UP_ARROW)), # Vol+
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([255, 2, 255, 0], (Keycode.LEFT_CONTROL, Keycode.DOWN_ARROW)), # Vol-
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([255, 2, 127, 128],(Keycode.SPACE,)),
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([255, 2, 111, 144],(Keycode.ENTER,)), # Enter / Save
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([255, 2, 143, 112],(Keycode.DELETE,)), # Backwards arrow
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([255, 2, 159, 96], (Keycode.ESCAPE,)), # Setup
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([255, 2, 79, 176], (Keycode.DOWN_ARROW,)),
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([255, 2, 239, 16], (Keycode.LEFT_ARROW,)),
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([255, 2, 95, 160], (Keycode.UP_ARROW,)),
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([255, 2, 175, 80], (Keycode.RIGHT_ARROW,)),
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([255, 2, 207, 48], (Keycode.ZERO,)),
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([255, 2, 247, 8], (Keycode.ONE,)),
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([255, 2, 119, 136],(Keycode.TWO,)),
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([255, 2, 183, 72], (Keycode.THREE,)),
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([255, 2, 215, 40], (Keycode.FOUR,)),
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([255, 2, 87, 168], (Keycode.FIVE,)),
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([255, 2, 151, 104],(Keycode.SIX,)),
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([255, 2, 231, 24], (Keycode.SEVEN,)),
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([255, 2, 103, 152],(Keycode.EIGHT,)),
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([255, 2, 167, 88], (Keycode.NINE,)),
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)
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print("Ready for NEC remote input!")
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while True:
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led[0] = (0, 0, 0) # LED off
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pulses = decoder.read_pulses(pulsein)
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#print("\tHeard", len(pulses), "Pulses:", pulses)
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try:
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code = decoder.decode_bits(pulses, debug=False)
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print("Decoded:", code)
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# Reads 4-byte code transmitted by NEC remotes and
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# sends a matching key command
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for pairs in infrared_to_key:
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if pairs[0] == code:
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led[0] = (0, 100, 0) # flash green
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print("Matched IR code to keypresses: ", pairs[1])
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keyboard.press(*pairs[1])
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keyboard.release_all()
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except adafruit_irremote.IRNECRepeatException: # unusual short code!
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print("NEC repeat!")
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except adafruit_irremote.IRDecodeException as e: # failed to decode
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led[0] = (100, 0, 0) # flash red
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print("Failed to decode: ", e.args)
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print("----------------------------")
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