串口通讯

class mySerial(Serial):
    myIndoorMonitor = indoorMonitor()
    myOutdoorMonitor = outdoorMonitor()
    def __init__(self, com, baudrate=9600, bytesize=8, parity='N', stopbits=1):
        Serial.__init__(self, com, baudrate, bytesize, parity, stopbits)

def receiveMonitorResult(self):
    if self.monitorTag == 1:
        while self.openTag:
            try:
                while self.inWaiting() > 0:
                    myout = self.read_all()
                    for _ in myout:
                        tempout = hex(ord(_))
                        hexout = tempout[-2:].upper() if len(tempout) == 4 else ('0' + tempout[-1]).upper()
                        if self.indoorRecieveTag:
                            self.hexOut += (' ' + hexout)
                            self.hexOut = self.hexOut.strip()
                        else:
                            self.hexOut = ''
                        if len(self.hexOut) > 7 \
                                and len(self.hexOut.split()) < self.myIndoorMonitor.str2hex(self.hexOut[6:8]):
                            continue
                        if len(self.hexOut) < 5:
                            self.indoorRecieveTag = True
                        else:
                            if self.hexOut[:5] in self.indoorMonitorStartCode:
                                self.indoorRecieveTag = True
                            else:
                                self.hexOut = self.hexOut[3:]
                    if self.myIndoorMonitor.str2hex(self.hexOut[6:8]) == len(self.hexOut.split()):
                        self.myIndoorMonitor.updateIndoorMonitor(self.hexOut)
                        self.indoorRecieveTag = False
            except SerialException:
                pass

# 获取端口号
def get_port_list():
    port_list = serial.tools.list_ports.comports()
    all_port = []
    if len(port_list):
        for port in port_list:
            port_index = port.description.find('COM')
            if port_index != -1:
                port = port.description[port_index:port_index+4]
                all_port.append(port)
    all_port.reverse()
    return all_port