The learning and application of microcontrollers is rapidly rising in factories, schools, and enterprises. Engineers and technicians who are accustomed to traditional electronics face new challenges. If they cannot learn microcontrollers in a short time, they will inevitably be left behind by the times. Only by bravely facing reality, challenging oneself, enhancing learning, and striving … Read more
*Example 1: Use P3 port to light up 8 LEDs in sequence #include<reg51.h> // Include the header file for microcontroller registers / Function: Delay for a period of time void delay(void) { unsigned char i,j; for(i=0;i<250;i++) for(j=0;j<250;j++) ; } / Function: Main function void main(void) { while(1) { P3=0xfe; // First LED on delay(); // … Read more
First, let’s pose a question: what do you think the output of the following code will be? /* A simple example code */ #include <stdio.h> int main(int argc, char const *argv[]) { int a = -10; int b = 10; int c = -3; int d = 3; printf("Result 1: %d\n", a%d); printf("Result 2: %d\n", … Read more
In the world of C programming, code safety and resource management have always been crucial topics. Today, we will focus on a feature that is expected to become an important part of future versions of C language: ‘defer’. We will explore how to apply this feature in existing tools and compilers, as well as its … Read more
Today, let’s talk about the C language. When I first started learning, I was also confused, thinking it seemed simple, but I encountered various problems when using it. After years of trial and error, I would like to share some of my insights with you. Here are examples of using selection statements in C language: … Read more
If you find this useful, pleaselike and share it; your encouragement is my motivation to create! 1. C Language Programming Exercise Description We have 10 integers, and we need to shift each integer to the right by one position, with the last integer moving to the first position. For example, the integer sequence: 1,2,3,4,5,6,7,8,9,10 After … Read more
In embedded system development and some fun electronic projects, using C language to control a buzzer to play simple scores is a very interesting practice. It allows hardware to “sound”, adding lively audio effects to our creations. Today, let’s delve into how to achieve this fun functionality. 1. Working Principle of the Buzzer Buzzers are … Read more
Today, let’s talk about the C language. When I first started learning, I was quite confused; it seemed simple, but I always encountered various problems when using it. After many years of trial and error, I would like to share some of my insights with you. Here is a detailed explanation of the use of … Read more
In the world of C language, pointers are like a magical key, both powerful and mysterious, capable of unlocking many secrets of efficient programming, while also intimidating many beginners. Today, let’s delve into the pointers in C language. What are pointers? In simple terms, a pointer is a variable that holds the address of another … Read more
