数据以 16 进制发送到树莓派 - V2EX
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kisscucci

数据以 16 进制发送到树莓派

  •   
  •   kisscucci Aug 23, 2017 3419 views
    This topic created in 3184 days ago, the information mentioned may be changed or developed.
    #实例化串口
    import serial;
    ser = serial.Serial('/dev/ttyUSB0', 9600, timeout = 0.5);

    #需要发送的数据
    strnum = 7e 00 08 01 00 02 01 ab cd
    .....
    #这里该如何将 strnum 转换为 16 进制
    strSerial = strnum
    ser.write(strSerial)
  • strnum
  • serial
  • ser
  • strserial
    4 replies    2017-08-24 09:31:07 +08:00
    kisscucci
        1
    kisscucci  
    OP
       Aug 23, 2017
    找到方法了:

    import binascii

    def order_list():
    a = 'aa0902630000bb'
    a_list = []
    for i in a.split():
    a_list.append(binascii.a2b_hex(i))
    return a_list

    ser = serial.Serial('/dev/ttyUSB0', 9600)
    ser.writelines(order_list())

    作者：知乎用户
    链接： https://www.zhihu.com/question/51733053/answer/147899163
    jiangbingo
        2
    jiangbingo  
       Aug 24, 2017
    nice
    jiangbingo
        3
    jiangbingo  
       Aug 24, 2017
    题主在用树莓派开发什么？
    kisscucci
        4
    kisscucci  
    OP
       Aug 24, 2017 via iPhone
    @jiangbingo 获取二维码扫描器数据
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