44 lines
1014 B
Python
44 lines
1014 B
Python
import time
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from pimoroni import Button
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from plasma import WS2812
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from motor import motor2040
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"""
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Displays a rotating rainbow pattern on the Motor 2040's onboard LED.
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Press "Boot" to exit the program.
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NOTE: Plasma WS2812 uses the RP2040's PIO system, and as
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such may have problems when running code multiple times.
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If you encounter issues, try resetting your board.
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"""
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SPEED = 5 # The speed that the LEDs will cycle at
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BRIGHTNESS = 0.4 # The brightness of the LEDs
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UPDATES = 50 # How many times the LEDs will be updated per second
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# Create the LED, using PIO 1 and State Machine 0
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led = WS2812(motor2040.NUM_LEDS, 1, 0, motor2040.LED_DATA)
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# Create the user button
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user_sw = Button(motor2040.USER_SW)
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# Start updating the LED
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led.start()
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hue = 0.0
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# Make rainbows until the user button is pressed
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while user_sw.raw() is not True:
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hue += SPEED / 1000.0
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# Update the LED
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led.set_hsv(0, hue, 1.0, BRIGHTNESS)
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time.sleep(1.0 / UPDATES)
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# Turn off the LED
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led.clear()
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