Using ESP32 to construct a ZIGBEE network transmission and transfer

Introduction: Using the networking function of ESP32, a serial port module of WiFi UDP to Zigbee is constructed. This module only sends UDP instructions to Zigbee's network, which replaces the original function. Note that the network address of ESP32 is 192.168.0.114. How can I get the IP address of ESP32? You can intervene in the 192 ...

Posted by roninblade on Tue, 09 Aug 2022 12:20:46 +0300

C# Websocket connection (wss)

1, What is Websocket? 1.WebSocket is a new protocol under HTML5 (websocket protocol is essentially a tcp based protocol) 2. It realizes full duplex communication between browser and server, which can better save server resources and bandwidth and achieve the purpose of real-time communication 3.Websocket is a persistent protocol 2, What is th ...

Posted by alco19357 on Sat, 21 May 2022 22:14:31 +0300

Java: network programming

Network programming What is network programming? Network programming allows programs to interact with programs in other devices on the network. Basic mode of network communication There are two common communication modes: client server (CS) and Browser/Server(BS) Three elements of network communication Three elements overview, element 1: ...

Posted by rex9990 on Tue, 17 May 2022 01:52:38 +0300

Stick to learning for 100 days: network programming

preface Hello, I'm Xiuqi. On the one hundred and twenty-first day of learning C + +, I barely understood C + + from introduction to mastery. There are still a lot of people who haven't remembered and didn't understand. Let's look ahead first. I've been struggling for a long time today. Finally, I opened a new book to learn network programming. ...

Posted by jmelnick on Fri, 13 May 2022 00:31:56 +0300

BIO application RPC framework

What is RPC? RPC (Remote Procedure Call) is a technology that requests services from remote computer programs through the network without knowing the underlying network. A complete RPC synchronous call process: 1) The service consumer (client) calls the client stub in a local call mode; 2) What is a client stub? That is, the local simu ...

Posted by sanfly on Mon, 09 May 2022 07:56:03 +0300

Capturing packets using tcpdump under linux

We all know that there is a powerful wireShark tool for capturing packets under windows system, and tcpdump can be used for capturing packets under Linux. tcpdump command format tcpdump option proto dir type option: optional parameter -w write data to file-r read data from file-A displays each data packet in ASCII code (no link layer hea ...

Posted by Flinch on Mon, 02 May 2022 22:13:12 +0300

Static data members and static member functions (static)

catalogue I About static members II Commonalities between static data members and ordinary data members III Why use static data members IV Initialization of static data members V Access mode of static members Vi Static member function 1. Different from static data members, static member functions are not used to communicate between objec ...

Posted by Greaser9780 on Mon, 02 May 2022 21:46:41 +0300

[VLAN advanced technology] - explanation of MUX VLAN operation principle and example configuration

1, Causes of MUX VLAN In my opinion, MUX VLAN is mainly designed for large and medium-sized networks. Generally, there are many departments with different responsibilities in large and medium-sized enterprises. Each department requires mutual independence, but some departments need to visit each other. If it is a large company, it will hav ...

Posted by siddscool19 on Mon, 18 Apr 2022 02:43:49 +0300

Computer network --- network programming

1. Network programming 1.1 what is network programming Network programming: refers to the host on the network, which realizes network communication by programming through different processes In short: network programming is to control the data interaction between different processes through code 1.2 sender and receiver Sender: the sende ...

Posted by prasitc2005 on Mon, 04 Apr 2022 15:10:37 +0300

TCP and UDP in computer networks (I. differences between TCP and UDP)

What is TCP? TCP(Transmission Control Protocol) is a connection oriented, reliable and byte stream oriented transport layer protocol. Connection oriented: an application must establish a TCP connection before using the TCP protocol. After the data transmission is completed, the established TCP connection must be released. This also limits ...

Posted by wmolina on Sat, 02 Apr 2022 15:27:38 +0300