Danny Staple
31 lines
605 B
Python
31 lines
605 B
Python
"""Send this code, run and watch the repl.
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Then turn the wheel slowly to see the change"""
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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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import array
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pio_input = """
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.program pio_input
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in pins, 1 ; read in pin (into ISR)
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push noblock ; put this into input FIFO
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"""
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assembled = adafruit_pioasm.assemble(pio_input)
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sm = rp2pio.StateMachine(
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assembled,
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frequency=2000,
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first_in_pin=board.GP20
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)
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buffer = array.array('I', [0])
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while True:
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# read data from the fifo
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sm.readinto(buffer)
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# print it.
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print(f"{buffer[0]:032b}")
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time.sleep(0.1)
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