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24
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1 '''
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2 pin 11 = ws2812 ring
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3 pin 39 = sw 4
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4 pin 37 = sw 3
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5 pin 35 = sw 2
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6 pin 33 = sw 1
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7 pin 40 = audio trigger 0
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8 pin 38 = audio trigger 1
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9 pin 36 = audio trigger 2
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10 pin 34 = audio trigger 3
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11
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12 pdm run ampy -p /dev/ttyACM0 put ub-timer/ ./ && pdm run ampy -p /dev/ttyACM0 reset --hard
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13 minicom -b 115200 -D /dev/ttyACM0
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14 '''
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15
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16 import time
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17 from machine import Pin
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18 from neopixel import NeoPixel
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19 import random
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20
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21 from colorsys_local import hsv_to_rgb
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22
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23
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24 def rand_color():
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25 value = .1
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26 sat = 1
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27 hue = random.random()
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28 return tuple(int(x * 255) for x in hsv_to_rgb(hue, sat, value))
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29
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30
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31 pin = Pin(11, Pin.OUT)
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32 switch_pin = [
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33 Pin(33, Pin.IN, Pin.PULL_UP),
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34 Pin(35, Pin.IN, Pin.PULL_UP),
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35 Pin(37, Pin.IN, Pin.PULL_UP),
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36 Pin(39, Pin.IN, Pin.PULL_UP),
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37 ]
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38 audio_trigger = [
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39 Pin(40, Pin.OUT, value=1),
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40 Pin(38, Pin.OUT, value=1),
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41 Pin(36, Pin.OUT, value=1),
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42 Pin(34, Pin.OUT, value=1),
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43 ]
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44 song_duration = [
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45 121.47,
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46 2.16,
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47 1,
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48 1,
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49 ]
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50 num_leds = 12
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51 np = NeoPixel(pin, num_leds)
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52 audio_start_ms = 1
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53 audio_end_ms = 0
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54 last_sw_pressed = [0, 0, 0, 0]
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55
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56
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57 def startAudio(index, now):
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58 global audio_start_ms, audio_end_ms
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59 audio_trigger[index].value(0)
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60 audio_start_ms = now
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61 audio_end_ms = now + song_duration[index] * 1000
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62 for fr in range(num_leds):
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63 np[fr] = rand_color()
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64 np.write()
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65 time.sleep(.02)
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66 audio_trigger[index].value(1)
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67
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68
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69 def rand_fill(start):
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70 for fr in range(num_leds):
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71 if fr > start:
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72 np[fr] = rand_color()
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73 else:
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74 np[fr] = (0, 0, 0)
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75 np.write()
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76
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77
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78 def scan_buttons(now):
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79 for index in range(4):
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80 pressed = not switch_pin[index]()
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81 if pressed != last_sw_pressed[index]:
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82 last_sw_pressed[index] = pressed
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83 if pressed:
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84 startAudio(index, now)
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85
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86
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87 def update_leds(now):
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88 frac = (now - audio_start_ms) / (audio_end_ms - audio_start_ms)
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89 if 0 < frac < 1:
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90 cur = max(0, min(11, int(frac * num_leds)))
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91 rand_fill(cur)
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92 else:
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93 np.fill((0, 0, 0))
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94 np.write()
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95
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96
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97 while True:
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98 now = time.ticks_ms()
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99 update_leds(now)
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100 scan_buttons(now)
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101 time.sleep(.05)
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