matrix.py 文件源码

def __init__(self, address=ADDR):
        self.address = address
        self._brightness = 127

        self.bus = smbus.SMBus(1)

        self.bus.write_byte_data(self.address, CMD_MODE, MODE)
        self.bus.write_byte_data(self.address, CMD_OPTIONS, OPTS)
        self.bus.write_byte_data(self.address, CMD_BRIGHTNESS, self._brightness)

        self._BUF_MATRIX_1 = [0] * 8
        self._BUF_MATRIX_2 = [0] * 8