kopia lustrzana https://github.com/pimoroni/pimoroni-pico
103 wiersze
2.8 KiB
Python
103 wiersze
2.8 KiB
Python
import plasma
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from plasma import plasma_stick
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from machine import Pin
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import time
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from random import random, uniform, choice
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"""
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This example uses a PIR sensor to trigger some spooky effects.
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We connected ours up to our QW/ST connector.
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"""
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# Set how many LEDs you have
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NUM_LEDS = 50
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BRIGHTNESS = 0.8
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HUE = 0.8
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# randomly pick a different colour every time an effect fires
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RANDOM = True
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def spooky_flash():
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for i in range(NUM_LEDS):
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led_strip.set_hsv(i, HUE, 1.0, BRIGHTNESS / 2)
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time.sleep(0.1)
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for i in range(NUM_LEDS):
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led_strip.set_hsv(i, HUE, 1.0, 0.0)
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time.sleep(0.1)
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for i in range(NUM_LEDS):
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led_strip.set_hsv(i, HUE, 1.0, BRIGHTNESS / 2)
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time.sleep(0.1)
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for i in range(NUM_LEDS):
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led_strip.set_hsv(i, HUE, 1.0, 0.0)
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time.sleep(0.1)
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for i in range(NUM_LEDS):
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led_strip.set_hsv(i, HUE, 1.0, BRIGHTNESS / 2)
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time.sleep(0.1)
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for i in range(NUM_LEDS):
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led_strip.set_hsv(i, HUE, 1.0, 0.0)
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time.sleep(0.1)
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for i in range(NUM_LEDS):
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led_strip.set_hsv(i, HUE, 1.0, BRIGHTNESS)
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time.sleep(3)
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for i in range(NUM_LEDS):
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led_strip.set_hsv(i, HUE, 1.0, BRIGHTNESS / 2)
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time.sleep(0.1)
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for i in range(NUM_LEDS):
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led_strip.set_hsv(i, HUE, 1.0, 0.0)
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time.sleep(0.1)
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# uncomment next line to increase tension
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# time.sleep(randrange(0, 15))
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def fire():
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while pir.value() == 1:
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# fire effect! Random red/orange hue, full saturation, random brightness
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for i in range(NUM_LEDS):
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led_strip.set_hsv(i, uniform(0.0, 50 / 360), 1.0, random())
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time.sleep(0.1)
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def all_on():
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while pir.value == 1:
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# light up a solid colour while movement is detected
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for i in range(NUM_LEDS):
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led_strip.set_hsv(i, HUE, 1.0, BRIGHTNESS)
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time.sleep(0.1)
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# set up the hardware
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# WS2812 / NeoPixel™ LEDs
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led_strip = plasma.WS2812(NUM_LEDS, 0, 0, plasma_stick.DAT, color_order=plasma.COLOR_ORDER_RGB)
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# the pin the signal line of our PIR sensor is connected to
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# if you're using one of our qw/st > DuPont cables the blue wire is SDA (GP4) and the yellow wire is SCL (GP5)
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pir = Pin(plasma_stick.SCL, Pin.IN, Pin.PULL_UP)
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# Start updating the LED strip
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led_strip.start()
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while True:
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# on movement
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if pir.value() == 1:
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print("Movement detected!")
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# pick a random colour
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if RANDOM is True:
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HUE = random()
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# pick a random effect
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effects = [spooky_flash, fire, all_on]
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choice(effects)()
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# if you want a specific effect, comment the lines above and uncomment one of these:
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# spooky_flash()
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# fire()
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# all_on()
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else:
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for i in range(NUM_LEDS):
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led_strip.set_hsv(i, 1.0, 1.0, 0.0)
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time.sleep(0.1)
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