__init__.py 文件源码

def __init__(self, pin_mode=GPIO.BCM, microsteps=1):
    # Minimum stepper driver pulse width in microseconds.
    # This is how long logic voltage will be applied to the STEP pin.
    self._pulse_width_us = 2
    # GPIO pin mode
    self._pin_mode = pin_mode
    # Microstep resolution
    self._microsteps = microsteps
    # Maximum speed limit
    self._max_speed = None