xbee communication

Communication Algorithm 9: Link-level simulation of communication systems, communication system links I. Physical Layer baseband simulation The link-level simulation of the communication system can be divided into five parts. 1. System Parameters 2. Sender Algorithm 3. Channel Model 4. Receiver Algorithm 5. St

:#include #include #include #include #include #include #include #include #include #include Char buf[100];void Main (void){int Cltsock, Len, err;struct Sockaddr_un cltaddr;struct Sockaddr_un seraddr;int ret;Cltsock = socket (Af_unix, sock_stream, 0);if (Cltsock {printf ("Socket creat error!!! \ n ");Return}memset (cltaddr, 0, sizeof (CLTADDR));cltaddr.sun_family = Af_unix;sprintf (Cltaddr.sun_path, "CLT");Len = offsetof (struct Sockaddr_un, Sun_path) + strlen (Cltaddr.sun_path);Unlink (Cltaddr.su

Vue's most used components communicate in three ways: parent-to-child component communication, child-to-parent component communication, sibling component communication. (template syntax for templates with pug)1. Parent-to-child component communicationParent-to-child component communication is through props data transfe

Before I begin, I'd like to describe what this so-called communication program is all about. The communication program is similar to a weak version of QQ, login needs to register, after successful login, you can achieve instant communication, group chat, private chat, but also can be transmitted documents. Let's get to the last picture Server side: Client Login:

Let me introduce some of the issues that need attention when designing communication services. 1, the use of short-chain, or long-chain. The advantages of short-chain can be guaranteed to a certain extent the number of concurrent services, each communication is completed, the release of resources, the disadvantage is that each time the need to establish a link, waste of resources,

Interprocess: Pipeline, Message queue, signal, shared memory, socketThere are several ways to communicate between processes:(1) Pipes: Pipelines can be used to communicate between affinity processes, allowing one process and another to communicate with a process that has a common ancestor to it.(2) Named pipe (named pipe): The named pipe overcomes the limitation of the pipe without name, so that, in addition to having the functionality that the pipeline has, it allows for inter-process

Inter - process communication between embedded Linux (v)--Introduction to interprocess communicationI. Introduction to inter-process communication l inux process communication way linux of Bell Labs. system V IPC and BSD Socket two interprocess communication mechanisms Linux inter-process

Communication Mode Parallel Suitable for short distance communication, the parallel communication control is simple and the relative transmission speed is fast (8 bits are transmitted together). Serial Can only be transmitted by one person. Sync (Understanding) Establish the direct control of the receiver clock by the sender clock, so that the two sides a

Pipeline CommunicationWhat is a pipe? The pipeline is one-way, first-out, and he connects the output of one process with the input of another. One process (write process) writes data at the end of the pipeline, and another process (read process) reads the data from the head of the pipe.Pipeline CreationPipelines include nameless pipes and two of known pipelines, which are used for communication between parent and child processes, which can be used for

For telecommunications devices such as Cisco, Nortel and Avaya, Tuesday is their bad day. Tomorrow, Bill Gates will announce Microsoft's official foray into the communications equipment industry. The product that Microsoft brings is "unified communication". This is a platform to integrate all communication methods, such as: Voice, video, instant messaging and other information. If the project succeeds, th

what is JMS. The JMS-the Java Message Service-application interface is a Java platform-oriented messaging middleware (MOM) API for sending messages and communicating asynchronously between two applications, or distributed systems. The Java Messaging Service is a platform-independent API, with most MOM providers supporting JMS. the advantages of JMS At present, CORBA, DCOM, RMI and other RPC middleware technologies have been widely used in various fields. But in the face of distributed systems

Reprint Please specify source: http://blog.csdn.net/xiaoy_h/article/details/26090277Needless to say, IPC is inter-process communication.interprocess communication can be used in a number of ways, such as the creation of a port after the use of multicast technology for handshake connection, here is to be described by the method of memory file mapping implementation.First add the relevant API functions to the project: [DllImport ("kernel32.dll",

Please respect the fruits of labor, reproduced please specify the source: http://blog.csdn.net/caoshichao520326/article/details/8995583 Java Multithreading to exchange information, sometimes only pipe to complete, in the use of pipe communication, often encounter "Java-ioexception:read end Dead" or "Java-ioexception:write-end dead" anomaly, The following for this problem to make a simple analysis, the first is to write a pipeline

Introduction In the previous article discussed several application system integration methods, found that the actual Message Queuing-oriented integration scheme is a more reasonable overall choice. Here, we first discuss a specific message queue ACTIVEMQ Basic communication method. ACTIVEMQ is an implementation of the JMS message Communication specification. In general, the most common types of message

The internet is used to convey information, to understand the network programming, first to learn some basic knowledge of communication From the initial letter to telegram, telephone, to video communication, from radio, radio, to digital television, is the credit of the communication system, text, voice, images and so on are information, so it is the information