kopia lustrzana https://github.com/pimoroni/pimoroni-pico
83 wiersze
1.7 KiB
Python
83 wiersze
1.7 KiB
Python
from pimoroni import ShiftRegister
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from machine import Pin
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from wakeup import get_shift_state, reset_shift_state
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import time
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BLACK = 0
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WHITE = 1
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GREEN = 2
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BLUE = 3
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RED = 4
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YELLOW = 5
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ORANGE = 6
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TAUPE = 7
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SR_CLOCK = 8
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SR_LATCH = 9
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SR_OUT = 10
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LED_A = 11
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LED_B = 12
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LED_C = 13
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LED_D = 14
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LED_E = 15
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LED_BUSY = 6
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LED_WIFI = 7
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SHIFT_STATE = get_shift_state()
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reset_shift_state()
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class Button:
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def __init__(self, sr, idx, led, debounce=50):
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self.sr = sr
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self.startup_state = bool(SHIFT_STATE & (1 << idx))
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self.led = Pin(led, Pin.OUT) # LEDs are just regular IOs
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self.led.off()
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self._idx = idx
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self._debounce_time = debounce
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self._changed = time.ticks_ms()
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self._last_value = None
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def led_on(self):
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self.led.on()
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def led_off(self):
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self.led.off()
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def read(self):
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if self.startup_state:
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self.startup_state = False
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return True
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value = self.raw()
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if value != self._last_value and time.ticks_ms() - self._changed > self._debounce_time:
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self._last_value = value
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self._changed = time.ticks_ms()
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return value
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return False
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def raw(self):
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if self.startup_state:
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self.startup_state = False
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return True
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return self.sr[self._idx] == 1
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@property
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def is_pressed(self):
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return self.raw()
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sr = ShiftRegister(SR_CLOCK, SR_LATCH, SR_OUT)
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button_a = Button(sr, 7, LED_A)
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button_b = Button(sr, 6, LED_B)
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button_c = Button(sr, 5, LED_C)
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button_d = Button(sr, 4, LED_D)
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button_e = Button(sr, 3, LED_E)
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led_busy = Pin(LED_BUSY, Pin.OUT)
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led_wifi = Pin(LED_WIFI, Pin.OUT)
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