#includeIn C language, #include is a preprocessor directive that is used to include the contents of another file into the current file before compilation. In simple terms, it acts like copying and pasting the contents of the specified file at the location of#include.Its core function is toinclude header files, allowing the code to access functions, … Read more
Code Standards and Commenting Guidelines in C Language When writing programs in C, good coding standards and commenting practices not only improve code readability but also facilitate team collaboration and future maintenance. This article will detail some basic coding standards and commenting guidelines in C, illustrated with examples. 1. Code Formatting 1. Indentation Using a … Read more
Unions in C Language: Techniques for Memory Savings In the C language, a union is a special data structure that allows storing different types of data in the same memory location. Unlike structures, which allocate independent memory for each member, a union only allocates enough space for its largest member. This makes unions an effective … Read more
Programming Virtual Reality and Augmented Reality in C Language In today’s technological era, Virtual Reality (VR) and Augmented Reality (AR) technologies are gradually becoming part of our lives. Although these technologies are often associated with advanced programming languages such as C++, C#, or Python, we can also use the C language to implement some basic … Read more
Arrays in C Language: Usage of One-Dimensional and Multi-Dimensional Arrays In the C language, arrays are an important data structure used to store multiple elements of the same type. They can be integers, characters, floating-point numbers, etc. This article will detail the usage of one-dimensional and multi-dimensional arrays, along with code examples for demonstration. 1. … Read more
1 Object-Oriented C Object-oriented languages are closer to human thinking patterns, significantly reducing code complexity while enhancing code readability and maintainability. Traditional C code can also be designed to be readable, maintainable, and of lower complexity. This article will illustrate this with a practical example. 2 Basic Knowledge 2.1 Structures In addition to providing basic … Read more
01Introduction: Let’s get straight to the point. 02Content 1. C Language Implementation #include <stdio.h> #include "driver/gpio.h" #include "freertos/FreeRTOS.h" #include "freertos/task.h" #define DHT11_GPIO 4 // Use GPIO4 #define DHT_TIMEOUT 10000 // 10μs timeout // Data storage structure typedef struct { int humidity; int temperature; bool checksum_ok; } dht11_data; // Initialize GPIO void dht11_init() { gpio_set_direction(DHT11_GPIO, GPIO_MODE_OUTPUT); … Read more
01Introduction: In C language, break, return, and continue are three completely different control statements, with the following specific differences: 02Break 1. Usage Scenarios Loop statements (<span><span>for/while/do-while</span></span>） and <span><span>switch</span></span> statements. 2. Core Functionality In loops: Immediately terminate the entire current loop and continue executing the code after the loop. In switch: Exit the<span><span>switch</span></span> structure to avoid … Read more
/Reading China: Enjoying Good Reading Time/ “Montesquieu on China” By Montesquieu Translated by Xu Minglong Published by Commercial Press, December 2016 Since the late Qing Dynasty and the early Republic of China, a wave of Western learning has gradually flowed into China, with “The Spirit of the Laws” being one of the representative Western classics. … Read more
1. System Introduction: The intelligent flower pot monitors soil moisture using a humidity sensor. It uses the TLC2543 (12-bit ADC) for analog-to-digital conversion. The AT89C51 serves as the main controller. The LCD1602 displays the current moisture level and the set value. It automatically waters and alarms when the moisture level falls below the set value. … Read more