Python 串口设备应用
1. Python 串口设备应用
简述
1.1. 线程轮寻
风尘无限 <tianyu263@163.com>
-- 分享
就是打开串口后，启动一个线程来监听串口数据的进入，有数据时，就做数据的处理（也可以发送一个事件，并携带接收到的数据）。
Toggle line numbers
1
2 #coding=gb18030
3
4 import sys,threading,time;
5 import serial;
6 import binascii,encodings;
7 import re;
8 import socket;
9
10 class ReadThread:
11 def __init__(self, Output=None, Port=0, Log=None, i_FirstMethod=True):
12 self.l_serial = None;
13 self.alive = False;
14 self.waitEnd = None;
15 self.bFirstMethod = i_FirstMethod;
16 self.sendport = '';
17 self.log = Log;
18 self.output = Output;
19 self.port = Port;
20 self.re_num = None;
21
22 def waiting(self):
23 if not self.waitEnd is None:
24 self.waitEnd.wait();
25
26 def SetStopEvent(self):
27 if not self.waitEnd is None:
28 self.waitEnd.set();
29 self.alive = False;
30 self.stop();
31
32 def start(self):
33 self.l_serial = serial.Serial();
34 self.l_serial.port = self.port;
35 self.l_serial.baudrate = 9600;
36 self.l_serial.timeout = 2;
37
38 self.re_num = re.compile('\d');
39
40 try:
41 if not self.output is None:
42 self.output.WriteText(u'打开通讯端口\r\n');
43 if not self.log is None:
44 self.log.info(u'打开通讯端口');
45 self.l_serial.open();
46 except Exception, ex:
47 if self.l_serial.isOpen():
48 self.l_serial.close();
49
50 self.l_serial = None;
51
52 if not self.output is None:
53 self.output.WriteText(u'出错：\r\n %s\r\n' % ex);
54 if not self.log is None:
相关文档：
代码如下：
#!/usr/bin/env python
# -*-coding:UTF-8-*-#
from common import *
import Image, ImageFilter, math, sys, os, random
def modifyImageObj(img, matrix) :
width, height = img.size
for h in range(0, height) :&n ......
这个是1.10版本的猜数字，虽然代码基本不变，但是变的是思维方式，不再是用面向过程的方法，而该为用类来实现，比较前后的代码，这一个简洁多了，而且更容易理解！
更新：
#1.0版本中的提示类型是：AABB，简单的说就是相对位置的数字对了就显示A，错了就显示B；
#现在的提示改为：0A4B格式，也就是说不提示那个位置的数� ......
简单加密，用python来写写。
#coding=utf-8
'''
Description: 可逆的加密与解密
Environment: python2.5.x
Author:idehong@gmail.com
'''
import os
import sys
class Code(object):
'''可逆的加密与解密'''
def __init__(self, key = "idehong@gmail.com"):
self.__src_key ......
pySerial
Overview
This module encapsulates the access for the serial port. It provides backends for Python running on Windows, Linux, BSD (possibly any POSIX compliant system), Jython and IronPython (.NET and Mono). The module named "serial" automatically selects the appropriate backend.
It is re ......
