1  # SPDX-FileCopyrightText: 2022 Liz Clark for Adafruit Industries
 2  # SPDX-License-Identifier: MIT
 3  
 4  import array
 5  import pulseio
 6  import board
 7  from digitalio import DigitalInOut, Direction, Pull
 8  from adafruit_debouncer import Debouncer
 9  import neopixel
10  
11  #  button setup with Debouncer
12  pin = DigitalInOut(board.A2)
13  pin.direction = Direction.INPUT
14  pin.pull = Pull.UP
15  button = Debouncer(pin)
16  
17  #  button LED
18  led = DigitalInOut(board.A1)
19  led.direction = Direction.OUTPUT
20  
21  #  onboard neopixel
22  pix = board.NEOPIXEL
23  num_pixels = 1
24  pixel = neopixel.NeoPixel(pix, num_pixels, brightness=0.8, auto_write=False)
25  
26  #  PWM setup for IR LEDs
27  remote = pulseio.PulseOut(board.TX, frequency=38000, duty_cycle=2**15)
28  #  power on pulse array
29  # Prevent black from reformatting the arrays.
30  # fmt: off
31  power_on = array.array('H', [9027, 4490, 577, 563, 549, 1677, 579, 1674, 582, 558,
32                               554, 559, 553, 561, 551, 562, 551, 1675, 580, 1674, 572,
33                               567, 555, 1672, 573, 567, 556, 558, 554, 559, 553, 560,
34                               552, 562, 550, 1675, 581, 560, 552, 561, 552, 561, 551,
35                               563, 549, 1677, 579, 1674, 581, 560, 552, 561, 552, 1674,
36                               581, 1673, 573, 1680, 575, 1679, 577, 563, 549, 565, 547,
37                               1679, 577])
38  #  power off pulse array
39  power_off = array.array('H', [9028, 4491, 576, 563, 549, 1678, 578, 1701, 554, 533,
40                                579, 561, 551, 562, 551, 536, 576, 1703, 552, 1700, 556,
41                                558, 554, 1698, 547, 540, 582, 558, 554, 532, 580, 560,
42                                552, 561, 552, 562, 550, 563, 549, 564, 548, 565, 547,
43                                566, 546, 1707, 549, 1704, 551, 562, 550, 1703, 553, 1699,
44                                556, 1697, 548, 1705, 551, 1701, 554, 560, 553, 560, 552,
45                                1701, 554])
46  # fmt: on
47  #  array of the pulses
48  signals = [power_on, power_off]
49  #  neopixel colors
50  RED = (255, 0, 0)
51  GREEN = (0, 255, 0)
52  #  array of colors
53  colors = [GREEN, RED]
54  #  index variable
55  s = 0
56  
57  while True:
58      #  scan button for update
59      button.update()
60      #  if the button is pressed..
61      if button.fell:
62          #  send the pulse
63          remote.send(signals[s])
64          #  update onboard neopixel
65          pixel.fill(colors[s])
66          pixel.show()
67          #  turn on button LED
68          led.value = True
69          #  advance the index variable
70          s = (s + 1) % 2
71      #  if the button is released..
72      if button.rose:
73          #  turn off the button LED
74          led.value = False