A Minimalist MQTT Interface EasyMqttClient

A Minimalist MQTT Interface EasyMqttClient

Click on the “Embedded Application Research Institute” above, and select “Top/Star Official Account“ Useful Resources Delivered First Hand! Source | Embedded Application Research Institute Compiled & Formatted | Embedded Application Research Institute In the development of IoT-related applications, MQTT is used to some extent. The following open-source project is an interface I encapsulated based on … Read more

Sharing TCP/IP Illustrated (3 Volumes) PDF

Sharing TCP/IP Illustrated (3 Volumes) PDF

01 Content Summary Content validity TCP/IP Illustrated, Volume 1: Protocols mainly discusses the TCP/IP protocol, explaining the reasons for the definition of the TCP/IP protocol suite with numerous examples, as well as its application and operation in various operating systems. The second edition retains Stevens’ excellent knowledge system and writing style, while new author Kevin … Read more

Understanding TCP/IP Protocol: The Four-Way Handshake

Understanding TCP/IP Protocol: The Four-Way Handshake

TCP/IP is not a single protocol, but a collective term for a suite of protocols. It includes the IP protocol, ICMP protocol, and TCP protocol. 1 Here are a few key points to note: Internet Address: This is the IP address, generally consisting of the network number + subnet number + host number.Domain Name System: … Read more

Tips for Parameter Storage in Embedded Devices

Click on the “Embedded Application Research Institute” above, select “Pin/Star the Official Account“ Practical Benefits, Delivered First-Hand! Source | CSDN Passing Bear Compiled & Formatted | Embedded Application Research Institute 1. Introduction Those involved in embedded product development must have encountered the need to save device parameters. A common approach is to manage parameters using … Read more

Considerations for Using IAR Development Environment with AVR Microcontroller

Considerations for Using IAR Development Environment with AVR Microcontroller

Header File Meanings avr_macros.h includes simplified writing for reading and writing 16-bit registers, along with several bit manipulation functions. comp_a90.h provides brief writing for a large number of intrinsic functions. ina90.h includes the “inavr.h” and “comp_A90.h” files. intrinsics.h provides intrinsic functions that offer the simplest operations for handling the processor’s low-level features: sleep, watchdog, FLASH … Read more

Detailed Analysis of KEIL C51 Code Optimization

Detailed Analysis of KEIL C51 Code Optimization

In-depth analysis of Keil C51 bus peripheral operation issues. 1 Problem Review and Analysis In actual work, encountering repeated consecutive reads of the same port, the Keil C51 compiler did not achieve the expected results. Analyzing the assembly program generated by the C compiler found that the second read statement of the same port was … Read more

Resolving Link Errors in Keil Compilation

Resolving Link Errors in Keil Compilation

Using Keil MDK, I tried an example for STM32F107. After opening and compiling, the compilation succeeded, but the linker indicated that there were 5 functions undeclared. However, upon reviewing the files, it was clear that the header files were included. Why was it still not working? I also tried using extern declarations, but that did … Read more

Effective Approaches for Rust Newcomers

Effective Approaches for Rust Newcomers

Mozilla RustThe official team provides an extensive and high-quality eBook and technical documentation, which is enough for us to read directly.Moreover, I guarantee you won’t finish it because they are continuously updated with newrust versions, and occasionally there are new books on specific topics (for example, async programming, macros, cargo book, rustc book, etc.).I feel … Read more

Essential Skills for Linux Experts: A Comprehensive Guide to Environment Variables

Essential Skills for Linux Experts: A Comprehensive Guide to Environment Variables

Linux | Red Hat Certified | IT Technology | Operations Engineer 👇 Join the 1000-person technical communication QQ group. Note: [Public Account] for faster approval 1. Basic Concepts Environment variables (environment variables) generally refer to parameters used to specify the operating environment of the operating system. For example: when we write C/C++ code, we never … Read more