Introduction The Internet of Things (IoT) refers to the “internet of everything connected,” which is an extension and expansion of the internet, forming a huge network by combining various information sensing devices with the network, enabling connectivity among people, machines, and objects anytime and anywhere. However, many IoT terminals are resource-constrained, with limited storage space … Read more
Labs Guide CoAP, short for Constrained Application Protocol, is a communication protocol based on UDP designed to meet the M2M (Machine-to-Machine) needs in constrained environments. Currently, in the field of IoT protocols, the Matter Protocol 1.0 launched by Google, Amazon, and Apple in collaboration with the CSA Alliance, as well as the OLA Alliance Interoperability … Read more
Source: Guangdong IoT Open Laboratory Author: Laboratory Administrator The American Computer Industry Association predicts that by 2020, the number of connected devices worldwide will reach 50.1 billion. With the development of IoT, there has been real-time and effective connectivity between devices through the internet. To ensure smooth communication between devices, a specific
Recently at Exadel, we encountered an interesting challenge for IoT developers. As IoT applications gain so much momentum, there are more and more options on how to develop them. For device communication, two specialized competing protocols stand out: Message Queue Telemetry Transport (MQTT) and Constrained Application Protocol (CoAP). Both are designed to be lightweight and … Read more
Why MQTT over QUIC is the next generation standard protocol for IoT messaging and how it will empower IoT scenarios. What is the QUIC Protocol? QUIC (Quick UDP Internet Connections) is a transport layer protocol developed by Google that is based on the User Datagram Protocol (UDP), designed to improve the speed and reliability of … Read more
The mobile app acts as the master, while the ESP32CAM serves as the slave. The mobile app receives image data uploaded by the ESP32CAM and sends control commands to the ESP32CAM. 01 — ESP32CAM Program Design The development environment for the ESP32CAM program is Arduino, and the steps to be completed are as follows. 1. … Read more
The battery compartment for the remote-controlled plane has been designed and sent for sampling; however, the cockpit is not yet completed. Let’s first work on the remote control and data transmission. This article mainly introduces the UDP data transmission of ESP32C3, where ESP32C3 acts as a UDP server operating in AP mode. First, here is … Read more
This article will introduce how to create a wake-on-LAN device using ESP32 hardware and implement the WOL (Wake-on-LAN) function through .Net nanoFramework, sending WOL packets to wake up remote computers. 1. Background In previous articles, we introduced how to use libraries related to .Net nanoFramework to achieve various functions, such as reading sensor data, controlling … Read more
What is UDP My personal understanding of UP is a connectionless protocol. Before transmitting data, the receiving and sending ends do not establish a connection. When it wants to send, it simply grabs the data from the application and throws it onto the network as quickly as possible. Simple to use, fast, but does not … Read more
Click “Read the original text” to access more VxWorks resources Overview This article discusses the key points of UDP network communication between VxWorks 6.8 and Windows. Code Description On the Windows side, we ran a UDP server program named win_udpServer.ext, designed by vxbus.com. On the VxWorks 6.8 side, we designed a UDP client program code … Read more