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These files all use decorators (@asm_thumb, @asm_pio) that add names to the function scope, that the linter cannot see. It's useful to clear them in the file not in pyproject.toml as example code will be copied and adapted elsewhere, and those developers may also use Ruff (we hope!) Signed-off-by: Angus Gratton <angus@redyak.com.au>
29 lines
613 B
Python
29 lines
613 B
Python
# Example using PWM to fade an LED.
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# Note: this does not work on Pico W because it uses Pin(25) for LED output.
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# ruff: noqa: F821 - @asm_pio decorator adds names to function scope
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import time
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from machine import Pin, PWM
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# Construct PWM object, with LED on Pin(25).
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pwm = PWM(Pin(25))
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# Set the PWM frequency.
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pwm.freq(1000)
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# Fade the LED in and out a few times.
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duty = 0
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direction = 1
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for _ in range(8 * 256):
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duty += direction
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if duty > 255:
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duty = 255
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direction = -1
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elif duty < 0:
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duty = 0
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direction = 1
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pwm.duty_u16(duty * duty)
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time.sleep(0.001)
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