45 lines
921 B
Python
45 lines
921 B
Python
# SPDX-FileCopyrightText: 2021 Jeff Epler, written for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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#
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# Adapted from the an example in Appendix C of RPi_PiPico_Digital_v10.pdf
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import time
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import board
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import rp2pio
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import adafruit_pioasm
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led_quarter_brightness = adafruit_pioasm.assemble(
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"""
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set pins, 0 [2]
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set pins, 1
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"""
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)
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led_half_brightness = adafruit_pioasm.assemble(
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"""
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set pins, 0
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set pins, 1
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"""
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)
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led_full_brightness = adafruit_pioasm.assemble(
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"""
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set pins, 1
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"""
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)
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while True:
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sm = rp2pio.StateMachine(led_quarter_brightness, frequency=10000, first_set_pin=board.LED)
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time.sleep(1)
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sm.deinit()
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sm = rp2pio.StateMachine(led_half_brightness, frequency=10000, first_set_pin=board.LED)
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time.sleep(1)
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sm.deinit()
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sm = rp2pio.StateMachine(led_full_brightness, frequency=10000, first_set_pin=board.LED)
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time.sleep(1)
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sm.deinit()
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