36 lines
897 B
Python
36 lines
897 B
Python
"""CircuitPython Essentials UART possible pin-pair identifying script"""
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import board
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import busio
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from microcontroller import Pin
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def is_hardware_uart(tx, rx):
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try:
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p = busio.UART(tx, rx)
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p.deinit()
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return True
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except ValueError:
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return False
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def get_unique_pins():
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exclude = ['NEOPIXEL', 'APA102_MOSI', 'APA102_SCK']
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pins = [pin for pin in [
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getattr(board, p) for p in dir(board) if p not in exclude]
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if isinstance(pin, Pin)]
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unique = []
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for p in pins:
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if p not in unique:
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unique.append(p)
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return unique
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for tx_pin in get_unique_pins():
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for rx_pin in get_unique_pins():
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if rx_pin is tx_pin:
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continue
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else:
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if is_hardware_uart(tx_pin, rx_pin):
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print("RX pin:", rx_pin, "\t TX pin:", tx_pin)
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else:
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pass
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