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30 lines
677 B
Python
30 lines
677 B
Python
# Example using PIO to turn on an LED via an explicit exec.
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# Note: this does not work on Pico W because it uses Pin(25) for LED output.
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#
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# Demonstrates:
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# - using set_init and set_base
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# - using StateMachine.exec
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import time
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from machine import Pin
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import rp2
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# Define an empty program that uses a single set pin.
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@rp2.asm_pio(set_init=rp2.PIO.OUT_LOW)
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def prog():
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pass
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# Construct the StateMachine, binding Pin(25) to the set pin.
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sm = rp2.StateMachine(0, prog, set_base=Pin(25))
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# Turn on the set pin via an exec instruction.
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sm.exec("set(pins, 1)")
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# Sleep for 500ms.
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time.sleep(0.5)
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# Turn off the set pin via an exec instruction.
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sm.exec("set(pins, 0)")
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