1. What Is MQTT MQTT (Message Queuing Telemetry Transport) is a lightweight, publish-subscribe based message transport protocol that is suitable for resource-constrained devices and low-bandwidth, high-latency, or unstable network environments. It is widely used in IoT applications, enabling efficient communication between sensors, actuators, and other devices. 2. How MQTT Works To understand how MQTT works, … Read more
IoT (Internet of Things) devices must connect to the internet. By connecting to the internet, devices can collaborate with each other and work with backend services. The foundational network protocol of the internet is TCP/IP. MQTT (Message Queuing Telemetry Transport) is built on the TCP/IP protocol stack and has become the standard for IoT communication. … Read more
Hello everyone, I recently worked on an IoT project and summarized the MQTT protocol. As we all know, the MQTT protocol is widely used in the IoT field. If you are not familiar with it yet, I believe this article can help you get started. mqtt protocol 1 MQTT Protocol Features Publish and Subscribe QoS … Read more
xxhzz @PortalLab Lab 1. Introduction to MQTT Protocol MQTT is a “lightweight” communication protocol based on the publish/subscribe model, built on the TCP/IP protocol. It is lightweight, open, simple, and designed to be easy to implement, making these features particularly suitable for constrained environments such as machine-to-machine (M2M) and Internet of Things (IoT) environments. Publish/Subscribe … Read more
Author: Free and Open Lake AI What Is MQTT Used For? MQTT is a lightweight messaging protocol typically used for IoT devices that are designed to be energy-efficient and consume minimal bandwidth. The MQTT protocol runs over TCP/IP and is based on a lossless two-way publish-subscribe model, ensuring that MQTT messages are transmitted efficiently and … Read more
MQTT (Message Queuing Telemetry Transport) is a “lightweight” communication protocol based on the publish/subscribe model. This protocol is built on top of the TCP/IP protocol and was released by IBM in 1999. The biggest advantage of MQTT is that it can provide real-time and reliable messaging services for connecting remote devices with very little code … Read more
01 EtherCAT Bus Protocol 1 EtherCAT System Composition EtherCAT (Ethernet for Control Automation Technology) is an open architecture fieldbus system based on Ethernet, consisting of one master device and multiple slave devices. The master device uses a standard Ethernet controller, ensuring good compatibility; any computer with a network interface card and embedded devices controlled by … Read more
The fieldbus communication will gradually replace the pulse control in traditional motion controllers, pursuing higher efficiency data transmission. Currently popular communication protocols for drivers in China include CANOPEN, RS232, RS485, and EtherCAT. This article will help you understand the EtherCAT bus. What is EtherCAT EtherCAT (Ethernet for Control Automation Technology) is an open architecture fieldbus … Read more
Currently, the EtherCAT slave solutions available on the market mainly include the following types. The traditional ones are chips like the Beckhoff ET1100, which require a master control + ESC + PHY, resulting in higher costs, making them unsuitable for the competitive pace of domestic general-purpose products. The second type integrates PHY with the ESC, … Read more
Maintain curiosity about technology, broaden the boundaries of knowledge, and enhance the resolution of understanding. This is not a rigorous academic paper, but rather an explanation of the author’s understanding of EtherCAT distributed clock technology from an industrial application perspective. As an EtherCAT user rather than a developer, many descriptions of this technology may seem … Read more