python获取串口数据到多个txt_python读取串口数据并写入txt文件

以下代码实现从串口2获取数据，如果有新的数据就写入test.txt文件。

# !/usr/bin/python

# encoding:utf-8

import serial

if __name__ == '__main__':

serial = serial.Serial('COM2','9600')

if serial.isOpen():

print('串口打开成功！\n')

f = open('./test.txt','w')

#pass

else :

print('串口打开失败！\n')

try:

getBytes=b''

while True:

count = serial.inWaiting()

if count > 0:

data = serial.read(count)

if data != getBytes:

#print(data);

f.write(data.decode('utf-8'))

f.write('\n')

getBytes=data

except KeyboardInterrupt:

if serial != None:

f.close()

serial.close()

需要使用以下命令安装serial

pip install pyserial