查找串口

查询串口

from serial.tools.list_ports import comports(from serial.tools.list_ports_windows import comports)

print(comports())

[<serial.tools.list_ports_common.ListPortInfo object at 0x0000014FD6B0A8C0>, <serial.tools.list_ports_common.ListPortInfo object at 0x0000014FD6C76BF0>, <serial.tools.list_ports_common.ListPortInfo object at 0x0000014FD6B0B370>, <serial.tools.list_ports_common.ListPortInfo object at 0x0000014FD6B0A680>, <serial.tools.list_ports_common.ListPortInfo object at 0x0000014FD6B0A5C0>, <serial.tools.list_ports_common.ListPortInfo object at 0x0000014FD6B0A620>, <serial.tools.list_ports_common.ListPortInfo object at 0x0000014FD6CBDA80>, <serial.tools.list_ports_common.ListPortInfo object at 0x0000014FD6CBDAB0>, <serial.tools.list_ports_common.ListPortInfo object at 0x0000014FD6CBD990>, <serial.tools.list_ports_common.ListPortInfo object at 0x0000014FD6CBDB10>, <serial.tools.list_ports_common.ListPortInfo object at 0x0000014FD6CBD930>, <serial.tools.list_ports_common.ListPortInfo object at 0x0000014FD6CBD960>, <serial.tools.list_ports_common.ListPortInfo object at 0x0000014FD6CBDC60>]

参数类型

<class 'serial.tools.list_ports_common.ListPortInfo'>

列表下存放字符串类型

def find_port():
    ports = []
    for c in comports():
        # 列表下存放字符串类型串口
        ports.append(str(c))
    print(ports)
    return ports

查询结果

COM57 - Silicon Labs Dual CP210x USB to UART Bridge: Enhanced COM Port (COM57)
COM1 - 通信端口 (COM1)
COM58 - Silicon Labs Dual CP210x USB to UART Bridge: Standard COM Port (COM58)
COM42 - SimTech HS-USB Diagnostics 9011 (COM42)
COM76 - SimTech HS-USB NMEA 9011 (COM76)
COM45 - Silicon Labs Dual CP210x USB to UART Bridge: Standard COM Port (COM45)
COM38 - Silicon Labs Dual CP210x USB to UART Bridge: Enhanced COM Port (COM38)
COM43 - SimTech HS-USB AT Port 9011 (COM43)
COM14 - SimTech HS-USB Modem 9011 #2
 - 标准 33600 bps 调制解调器
 - 标准 33600 bps 调制解调器 #2
 - 标准 33600 bps 调制解调器 #3
 - 标准 33600 bps 调制解调器 #4

查找匹配到的第一个uart口

def uart(ports):
    for p in ports:
        match = re.match(r'(COM\d+).*Enhanced.*', p)
        if match:
            return match.group(1)

同理，查找at口和modem口

def at(ports):
    for p in ports:
        match = re.match(r'(COM\d+).*AT.*', p)
        if match:
            return match.group(1)


def modem(ports):
    for p in ports:
        match = re.match(r'(COM\d+).*Modem.*', p)
        if match:
            return match.group(1)

结果

if __name__ == '__main__':
    u = uart(find_port())
    a = at(find_port())
    m = modem(find_port())
    print('串口：', u)
    print('at口：', a)
    print('modem口：', m)