Year: 2025

HttpClient is Outdated, OkHttp is Losing Ground! This Tool is the New King!

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HttpClient is Outdated, OkHttp is Losing Ground! This Tool is the New King!

We are dedicated to exploring, sharing, and recommending the latest practical technology stacks, open-source projects, frameworks, and useful tools. Fresh open-source information awaits your discovery every day! Using <span>SpringBoot</span> directly with <span>OkHttp</span>, <span>HttpClient</span>, or <span>RestTemplate</span> to initiate <span>HTTP</span> requests is cumbersome and inconvenient for unified management. Therefore, we recommend a lightweight HTTP client framework suitable … Read more

Authorization in MQTT: Managing Access to MQTT Messages with ACL

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Authorization in MQTT: Managing Access to MQTT Messages with ACL

Authorization is a security mechanism that determines whether to allow users, devices, or applications to access specific resources, operations, or information based on their identity and permissions. In computer systems, networks, web applications, and other environments that require protection of sensitive data and resources, authorization is a key measure for ensuring security and implementing access … Read more

Practical Implementation of MQTT over lwIP: A Combination of IoT Protocols

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Practical Implementation of MQTT over lwIP: A Combination of IoT Protocols

MQTT, as a lightweight publish/subscribe messaging protocol, provides real-time and reliable messaging services for resource-constrained IoT devices in low bandwidth, high latency, or unstable network environments. lwIP, as a similarly lightweight TCP/IP protocol implementation, minimizes the use of hardware resources, especially memory, while providing complete TCP/IP functionality, making lwIP very suitable for small embedded systems. … Read more

DeviceNet Slave to PROFIBUS Slave – ADFWEB Gateway

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DeviceNet Slave to PROFIBUS Slave - ADFWEB Gateway

DeviceNet Slave toPROFIBUS Slave – ADFWEB Gateway– Guangzhou Xinyu IoT Author:www.adfweb.com.cn Zou Wuyi Mobile185-020-77899 Email: [email protected] 1 Features: The configurableDeviceNet Slave / PROFIBUS Slave converter has the following features: • Achieves bidirectional information transmission between theDeviceNet network and thePROFIBUS network; • Electrical isolation between the two buses; • Supports a maximum of244 bytes for reading … Read more

Detailed Explanation of MODBUS RTU Communication for Mitsubishi FX5

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Detailed Explanation of MODBUS RTU Communication for Mitsubishi FX5

MODBUS RTU Communication Settings for Mitsubishi FX5 MODBUS RTU communication falls under the category of serial communication. The MODBUS serial communication function of the FX5 can control 32 slave devices when using RS-485 communication and can control 1 slave device when using RS-232C communication. In practical applications, the choice between RS-485 and RS-232 mainly depends … Read more

Detailed Explanation of MODBUS Protocol 8: Unlock Advanced Techniques to Optimize Communication Efficiency

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Detailed Explanation of MODBUS Protocol 8: Unlock Advanced Techniques to Optimize Communication Efficiency

Click to follow and never lose your way in learning! On the stage of industrial automation, the application of the MODBUS protocol is like a war without gunpowder, where everyone is pursuing more efficient, stable, and intelligent communication effects. Today, we will dig into the advanced application techniques of the MODBUS protocol, uncovering these “hidden … Read more

Common Modbus Protocol Interview Questions

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Common Modbus Protocol Interview Questions

Click the aboveblue text to follow us This article will analyze the core concepts, technical details, and practical applications of the Modbus protocol from the interviewer’s perspective, providing a comprehensive interview preparation guide for technical personnel. 1 What are the differences between Modbus RTU, Modbus ASCII, and Modbus TCP? Interviewers often assess candidates’ technical depth … Read more

Introduction to GDB and Usage Examples: Start Debugging Your Programs!

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Introduction to GDB and Usage Examples: Start Debugging Your Programs!

When it comes to learning embedded systems, there is undoubtedly a lot to learn and remember. Writing this down helps me reconstruct problems and receive guidance from peers. 1. What is GDB? During our programming journey, we inevitably encounter program crashes, variable anomalies, and logical errors. This can be particularly frustrating for technical support workers … Read more

How to Learn C/C++ for Embedded Development?

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How to Learn C/C++ for Embedded Development?

As we all know, embedded development is a “cross-border battlefield” between software and hardware, and C/C++ serves as the main assembly language, requiring a balance between performance and hardware control. If you want to become an embedded engineer, what key points should you focus on learning in these two languages?! Interrupt Latency Optimization: Disable global … Read more