RFID.py 文件源码

def __init__(self, dev='/dev/spidev0.0', speed=1000000, pin_rst=22, pin_ce=0):
        self.pin_rst = pin_rst
        self.pin_ce = pin_ce

        SPI.openSPI(device=dev, speed=speed)
        GPIO.setmode(GPIO.BOARD)
        GPIO.setup(pin_rst, GPIO.OUT)
        GPIO.output(pin_rst, 1)
        if pin_ce != 0:
            GPIO.setup(pin_ce, GPIO.OUT)
            GPIO.output(pin_ce, 1)
        self.reset()
        self.dev_write(0x2A, 0x8D)
        self.dev_write(0x2B, 0x3E)
        self.dev_write(0x2D, 30)
        self.dev_write(0x2C, 0)
        self.dev_write(0x15, 0x40)
        self.dev_write(0x11, 0x3D)
        self.set_antenna(True)