When you enter a URL in your browser to search for information, have you ever noticed whether it starts with “http” or “https”? The difference of an ‘S’ signifies a world of difference in terms of network security. This article delves into the distinctions between HTTP and HTTPS. 1. HTTP HTTP, or HyperText Transfer Protocol, … Read more
IoT Data Platform: Building a Real-Time Monitoring System with MQTT and InfluxDB It was a sultry summer last year when our team took on a large factory’s equipment monitoring project. The outdated system used MySQL to store sensor data collected every 5 minutes, resulting in the database crashing when operations wanted to view real-time trends … Read more
Click the blue text Follow us 1. Core Analysis of MQTT Protocol (1) Essential Characteristics of Lightweight Communication Protocols MQTT (Message Queuing Telemetry Transport) is a “lightweight” communication protocol based on the publish/subscribe model, built on top of the TCP/IP protocol. Its greatest advantage is that it can provide real-time and reliable messaging services for … Read more
What is a subnet mask?A subnet mask is a “translation” of an IP address; it is a 32-bit binary number used for subnet management, primarily to extend the “network ID” in an IP address within multi-segment environments. The two main functions of a subnet mask are: to divide a network into multiple subnets and to … Read more
Click the blue text Follow us ETHERCAT Accessories Product Overview ETHERCAT Accessories are used for the ETHERCAT data acquisition and control system. Dewesoft provides a range of EtherCAT accessories for interconnection, power supply, and synchronization between Dewesoft EtherCAT data acquisition systems. EtherCAT power injectors, synchronization connectors, and repeaters are essential tools for distributed EtherCAT data … Read more
Abstract ❝ This article describes how to use C# to call the NModbus4 library and the System.IO.Ports library to implement Modbus RTU communication functionality【Project address at the end of the article】. Introduction Modbus RTU is a serial communication protocol, where the communication mechanism is a polling mechanism where the master device sequentially queries the slave … Read more
While organizing examples, I found a communication case for the Yu Electric flow meter. The model of the flow meter was not noted, making it impossible to determine its specific model. I can only organize and record this; those who encounter it can refer to it. It seems I need to be more careful in … Read more
Through JTAG Debugging – Introduction to DAP, a DAP consists of a DP and an AP, where the AP serves as a window to access the resources behind it. In JTAG debugging, Halt and Step Execution actually control the resources of the CPU behind the AP.In STM32F4xx, the Cortex-M4 registers are controlled via AHB-AP, allowing … Read more
JTAG: The Core Interface for Chip Testability Design In the field of integrated circuit (IC) design, Design for Testability (DFT) is a key technology to ensure high reliability and yield in chip production. JTAG (Joint Test Action Group), as a standard test access interface, has become an important means for modern chips to implement DFT … Read more
