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| 1 | +# SPDX-FileCopyrightText: Copyright (c) 2023 Liz Clark for Adafruit Industries |
| 2 | +# |
| 3 | +# SPDX-License-Identifier: MIT |
| 4 | + |
| 5 | +import os |
| 6 | +import random |
| 7 | +import board |
| 8 | +import audiocore |
| 9 | +import audiobusio |
| 10 | +import audiomixer |
| 11 | +from digitalio import DigitalInOut, Direction |
| 12 | +import neopixel |
| 13 | +from adafruit_ticks import ticks_ms, ticks_add, ticks_diff |
| 14 | +from adafruit_led_animation.animation.pulse import Pulse |
| 15 | +from adafruit_led_animation.color import RED, GREEN |
| 16 | +import adafruit_character_lcd.character_lcd_i2c as character_lcd |
| 17 | +import adafruit_lis3dh |
| 18 | +from adafruit_seesaw.seesaw import Seesaw |
| 19 | +from adafruit_seesaw.rotaryio import IncrementalEncoder |
| 20 | +import keypad |
| 21 | + |
| 22 | +puzzle_time = 5 # seconds |
| 23 | + |
| 24 | +lcd_columns = 16 |
| 25 | +lcd_rows = 2 |
| 26 | + |
| 27 | +# enable external power pin |
| 28 | +# provides power to the external components |
| 29 | +external_power = DigitalInOut(board.EXTERNAL_POWER) |
| 30 | +external_power.direction = Direction.OUTPUT |
| 31 | +external_power.value = True |
| 32 | + |
| 33 | +i2c = board.I2C() |
| 34 | + |
| 35 | +int1 = DigitalInOut(board.ACCELEROMETER_INTERRUPT) |
| 36 | +lis3dh = adafruit_lis3dh.LIS3DH_I2C(i2c, int1=int1) |
| 37 | +lis3dh.range = adafruit_lis3dh.RANGE_2_G |
| 38 | + |
| 39 | +ss_enc0 = Seesaw(i2c, addr=0x36) |
| 40 | +enc0 = IncrementalEncoder(ss_enc0) |
| 41 | + |
| 42 | +button = keypad.Keys((board.EXTERNAL_BUTTON, board.D13,), value_when_pressed=False, pull=True) |
| 43 | + |
| 44 | +lcd = character_lcd.Character_LCD_I2C(i2c, lcd_columns, lcd_rows) |
| 45 | +lcd.backlight = True |
| 46 | + |
| 47 | +puzzle_msgs = ["UNLOCK\nDOOR", "DOOR\nUNLOCKED", "UNLOCKING"] |
| 48 | + |
| 49 | +wavs = [] |
| 50 | +for filename in os.listdir('/faz_sounds'): |
| 51 | + if filename.lower().endswith('.wav') and not filename.startswith('.'): |
| 52 | + wavs.append("/faz_sounds/"+filename) |
| 53 | +wavs.sort() |
| 54 | +print(wavs) |
| 55 | + |
| 56 | +audio = audiobusio.I2SOut(board.I2S_BIT_CLOCK, board.I2S_WORD_SELECT, board.I2S_DATA) |
| 57 | +mixer = audiomixer.Mixer(voice_count=1, sample_rate=22050, channel_count=1, |
| 58 | + bits_per_sample=16, samples_signed=True, buffer_size=32768) |
| 59 | +volume = 0.5 |
| 60 | +mixer.voice[0].level = volume |
| 61 | +audio.play(mixer) |
| 62 | +wav_length = len(wavs) - 1 |
| 63 | + |
| 64 | +def open_audio(num): |
| 65 | + n = wavs[num] |
| 66 | + f = open(n, "rb") |
| 67 | + w = audiocore.WaveFile(f) |
| 68 | + return w |
| 69 | + |
| 70 | +PIXEL_PIN = board.EXTERNAL_NEOPIXELS |
| 71 | +BRIGHTNESS = 0.3 |
| 72 | +NUM_PIXELS = 8 |
| 73 | + |
| 74 | +PIXELS = neopixel.NeoPixel(PIXEL_PIN, NUM_PIXELS, auto_write=True) |
| 75 | +pulse = Pulse(PIXELS, speed=0.001, color=RED, period=3) |
| 76 | + |
| 77 | +puzzle_clock = ticks_ms() |
| 78 | +puzzle_time = puzzle_time * 1000 |
| 79 | + |
| 80 | +puzzle = False |
| 81 | +wave = open_audio(0) |
| 82 | +pos0 = volume |
| 83 | +last_pos0 = pos0 |
| 84 | +node_num = 0 |
| 85 | + |
| 86 | +def normalize(val, min_v, max_v): |
| 87 | + return max(min(max_v, val), min_v) |
| 88 | + |
| 89 | +def puzzle_string(length): |
| 90 | + _string = "" |
| 91 | + for _ in range(length/2): |
| 92 | + b = random.randint(0, 1) |
| 93 | + if b == 0: |
| 94 | + r = chr(random.randint(ord('A'), ord('Z'))) |
| 95 | + else: |
| 96 | + r = str(random.randint(0, 9)) |
| 97 | + _string += r |
| 98 | + _string += "\n" |
| 99 | + for _ in range(length/2): |
| 100 | + b = random.randint(0, 1) |
| 101 | + if b == 0: |
| 102 | + r = chr(random.randint(ord('A'), ord('Z'))) |
| 103 | + else: |
| 104 | + r = str(random.randint(0, 9)) |
| 105 | + _string += r |
| 106 | + lcd.message = _string |
| 107 | + return _string |
| 108 | + |
| 109 | +while True: |
| 110 | + event = button.events.get() |
| 111 | + if event and event.pressed: |
| 112 | + number = event.key_number |
| 113 | + if number == 0 and not puzzle: |
| 114 | + pulse.fill(GREEN) |
| 115 | + puzzle = True |
| 116 | + lcd.clear() |
| 117 | + lcd.message = puzzle_msgs[2] |
| 118 | + wave = open_audio(1) |
| 119 | + mixer.voice[0].play(wave) |
| 120 | + while mixer.playing: |
| 121 | + pass |
| 122 | + puzzle_clock = ticks_add(ticks_ms(), puzzle_time) |
| 123 | + if number == 1: |
| 124 | + lcd.clear() |
| 125 | + node_num = (node_num + 1) % 5 |
| 126 | + print(node_num) |
| 127 | + |
| 128 | + if puzzle: |
| 129 | + x, y, z = [ |
| 130 | + value / adafruit_lis3dh.STANDARD_GRAVITY for value in lis3dh.acceleration |
| 131 | + ] |
| 132 | + puzzle_string(lcd_columns*lcd_rows) |
| 133 | + if z > 0: |
| 134 | + wave = open_audio(2) |
| 135 | + print("playing up") |
| 136 | + pulse.fill(GREEN) |
| 137 | + else: |
| 138 | + wave = open_audio(3) |
| 139 | + print("playing down") |
| 140 | + pulse.fill(RED) |
| 141 | + mixer.voice[0].play(wave) |
| 142 | + while mixer.playing: |
| 143 | + puzzle_string(lcd_columns*lcd_rows) |
| 144 | + x, y, z = [ |
| 145 | + value / adafruit_lis3dh.STANDARD_GRAVITY for value in lis3dh.acceleration |
| 146 | + ] |
| 147 | + if z > 0: |
| 148 | + pulse.fill(GREEN) |
| 149 | + else: |
| 150 | + pulse.fill(RED) |
| 151 | + if ticks_diff(ticks_ms(), puzzle_clock) >= puzzle_time: |
| 152 | + lcd.clear() |
| 153 | + puzzle = False |
| 154 | + lcd.message = puzzle_msgs[1] |
| 155 | + wave = open_audio(4) |
| 156 | + mixer.voice[0].play(wave) |
| 157 | + while mixer.playing: |
| 158 | + pass |
| 159 | + print("puzzle done") |
| 160 | + wave = open_audio(0) |
| 161 | + lcd.clear() |
| 162 | + pulse.fill(RED) |
| 163 | + |
| 164 | + if not puzzle: |
| 165 | + pulse.animate() |
| 166 | + mixer.voice[0].play(wave, loop=True) |
| 167 | + if node_num > 3: |
| 168 | + lcd.message = "SECURITY\nBREACHED" |
| 169 | + else: |
| 170 | + lcd.message = f"DEACTIVATED:\n{node_num} of 4" |
| 171 | + pos0 = -enc0.position |
| 172 | + if pos0 != last_pos0: |
| 173 | + if pos0 > last_pos0: |
| 174 | + volume = volume + 0.1 |
| 175 | + else: |
| 176 | + volume = volume - 0.1 |
| 177 | + volume = normalize(volume, 0.0, 1.0) |
| 178 | + mixer.voice[0].level = volume |
| 179 | + last_pos0 = pos0 |
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