44 lines
1007 B
Python
44 lines
1007 B
Python
import keypad
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import rotaryio
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from kmk.scanners import Scanner
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class RotaryioEncoder(Scanner):
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def __init__(self, pin_a, pin_b, divisor=4):
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self.encoder = rotaryio.IncrementalEncoder(pin_a, pin_b, divisor)
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self.position = 0
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self._pressed = False
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self._queue = []
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@property
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def key_count(self):
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return 2
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def scan_for_changes(self):
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position = self.encoder.position
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if position != self.position:
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self._queue.append(position - self.position)
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self.position = position
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if not self._queue:
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return
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key_number = self.offset
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if self._queue[0] > 0:
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key_number += 1
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if self._pressed:
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self._queue[0] -= 1 if self._queue[0] > 0 else -1
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if self._queue[0] == 0:
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self._queue.pop(0)
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self._pressed = False
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else:
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self._pressed = True
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return keypad.Event(key_number, self._pressed)
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