41 lines
1020 B
Python
41 lines
1020 B
Python
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try:
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import board
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PLATFORM = 'CircuitPython'
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PIN_SOURCE = board
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except ImportError:
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import machine
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PLATFORM = 'MicroPython'
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PIN_SOURCE = machine.Pin.board
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except ImportError:
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from kmk.common.types import Passthrough
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PLATFORM = 'Unit Testing'
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PIN_SOURCE = Passthrough()
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def get_pin(pin):
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'''
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Cross-platform method to find a pin by string.
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The pin definitions are platform-dependent, but this provides
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a way to say "I'm using pin D20" without rolling a D20 and
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having to actually learn MicroPython/CircuitPython and the
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differences in how they handle pinouts.
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This also makes the keymap sanity checker actually work for
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CircuitPython boards, since it's not possible in CPY to
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define a module stub for `board` that uses Passthrough
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natively (which is how the MicroPython stub worked originally)
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'''
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return getattr(PIN_SOURCE, pin)
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class PinLookup:
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def __getattr__(self, attr):
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return get_pin(attr)
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Pin = PinLookup()
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