light.py 文件源码

def get_measure(mikrobus_index, use_spi):
    """Get a measure from Light Click.

    mikrobus_index: must be 0 (MIKROBUS_1) or 1 (MIKROBUS_2)

    use_spi: 1 if you use SPI (on board ADC) or 0 if you use ADC output
    directly.

    Note: An exception is thrown if it fails to get a measure from the Light
    Click.
    """
    measure = ctypes.c_uint16(0)
    ret = _LIB.light_click_get_measure(mikrobus_index,
                                       ctypes.byref(measure),
                                       use_spi)
    if ret < 0:
        raise Exception("light click get measure failed")
    return measure.value