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餐饮信息管理系统源代码，主要用于餐饮内容信息的数据管理。(The source code of the catering information management system is mainly used for data management of catering content information.)

qt串口助手，能接收和发送数据，能对接收的数据绘出曲线(QT serial port assistant, can receive and send data, can draw curves for received data)

用gnu.io.rxtx写的一个串口助手(A serial port assistant written in gnu.io.rxtx)

说明：  VB做的一个短信收发的例子,功能比较强大,可以好好参考(VB do an SMS transceiver example, function more powerful and can make reference to)

串口字符串发送与筛选接收,一次可以发送字符串和数字串。(Serial string sent with screening reception, one can send a string several strings.)

串口温度数据采集并实时显示 读串口数据的原理是,只要当有数据向串口发数据来时,计算机就会自动将其数据写到一个特定的缓冲区,我们只要写程序去读那个特定的缓冲区就可以了. 有数据向串口发过来时,程序可以将数据接收到,接收的数据是字符型的,那么将数据转化为数字型的,再将这个数据的大小作为画图的某一个点的纵坐标,横坐标为数据的序号.将这些点用线连起来就是一个曲线图了,这个就是图形显示基本原理. 查看原来的数据的原理也是这样的,不同的地方就是,数据是从文件中来,同样的也是将多个数据分成一个一个的,然后这一个数据的大小就是画图的某一个点的纵坐标,横坐标同样为数据的序号,再将这些点用线连起来就是曲线图. 图形能移动的原理,是我们首先改变的只是数据,图形并没有变,但图形的形式是由这些数据来确定的,当数据发生变化后,我们通过刷新显示区来变化的.(Serial temperature data acquisition and real-time serial data reading the principle is, as long as when a serial data to the data, the computer will automatically writes data to a specific buffer, we can write specific procedures read that the buffer zone would be fine. Serial data to be sent, process data can be received, the receiving of data is the character, then transform data into digital type, and then the size of the data as a drawing of a point Ordinate, the abscissa serial data. these points will be used to link line is a curve, this is the graphic display the basic tenets. View the original data is the same principle, the difference is, the data from the file, the same data also will be divided into a number one, and then this one is the size of the data to draw a certain point )

计算机通过串口向开发板发送数据，开发板将数据原样送回。(The computer through the serial port to send data to the development board, development board will be sent back to the data as is.)

说明：  modbus很全面很详细的485从机程序。(Modbus is a very comprehensive and detailed 485 slave program.)

说明：  餐饮信息管理系统源代码，主要用于餐饮内容信息的数据管理。(The source code of the catering information management system is mainly used for data management of catering content information.)

用vb6.0做的一个小的串口测试程序.可以实现正常通信(Used vb6.0 to do a small test program serial)