# -*- coding: utf-8 -*-
"""
Created on Mon May 27 11:44:23 2024

@author: WANGXIBAO
"""

import serial,datetime
import serial.tools.list_ports
import chardet
 
# 获取所有串口设备实例。
# 如果没找到串口设备，则输出：“无串口设备。”
# 如果找到串口设备，则依次输出每个设备对应的串口号和描述信息。
ports_list = list(serial.tools.list_ports.comports())
if len(ports_list) <= 0:
    print("无串口设备。")
else:
    print("可用的串口设备如下：")
    for comport in ports_list:
        #print(list(comport)[0], list(comport)[1])
        print(comport)
ser = serial.Serial()
ser.port = "COM1"
ser.baudrate = 115200
ser.timeout = 0.005

try :
    ser.open()
    print("串口打开")
    while True:

        buffer = ser.readline()
        if buffer:
            # result = chardet.detect(buffer)
            # print(result['encoding'])  # 输出检测到的编码
            data = buffer.decode('utf-8')
            nowTime = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S.%f")
            nowTime = nowTime[:-3]
            print(nowTime,data)

    
    
except:
    
    print("串口打开失败")
finally:
    ser.close()
    print("串口关闭")