The microcontroller is the core component of embedded systems, and circuits using microcontrollers are much more complex. However, when modifying and adding new features, circuits with microcontrollers are easier to implement, which is why electronic devices use microcontrollers. So, what are the challenges to pay attention to in the design of microcontroller circuits? 1. Selection … Read more
Microcontrollers have many names, such as MCU (Microcontroller Unit), and also referred to as microcontrollers. With the popularity of the Internet of Things, the demand for microcontrollers has been increasing. At the same time, as the performance and resources of microcontrollers have improved, the number of programming languages for developing microcontrollers has also increased. So, … Read more
1. Dual Channel 232 Communication Circuit Three-wire connection method, corresponding to a female connector, operating voltage 5V, can use MAX202 or MAX232. 2. Transistor Serial Communication This circuit is built with transistors, simple and low-cost, but it works very well at low baud rates. 3. Single Channel 232 Communication Circuit Three-wire method, completely equivalent to … Read more
Since the late 1970s, when microcontrollers were first introduced, there has been a long history of development in microcontroller technology. Microcontrollers are particularly suitable for embedded systems and are subject to strict size management, which is why almost every electronic device you see today integrates a microcontroller. The widespread application means that learners of microcontrollers … Read more
In microcontroller systems, the display module and input module are core components for achieving human-machine interaction (HMI). Below are their classifications, principles, and typical applications: 1. Display Module is used to visualize the data or status processed by the microcontroller. 1.1 Common Display Types LED (Light Emitting Diode) Monochrome LED: Indicates status (e.g., power, alarm). … Read more
Click the blue text to follow us Digital Voltmeter Based on 51 Microcontroller (Proteus Simulation + Program + Design Report + Explanation Video) Simulation software: Proteus 7.8 and above Compiler: Keil 4/Keil 5 Programming Language: C Design Number: S0101 Design a digital voltmeter based on the 51 microcontroller 1. Capable of measuring DC voltage between … Read more
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01Introduction: In C language for microcontrollers, due to resource limitations, pseudo-random number algorithms are usually employed. 02Common Methods 1. Standard Library Function Method (Requires Hardware Support) Note: Some microcontroller standard libraries may not support the rand() function. #include <stdlib.h> #include <time.h> // Initialize random seed (requires external variable, such as ADC noise) void init_random() { … Read more
51 Microcontroller Hardware System The 51 microcontroller (such as the Intel 8051 series and its derivatives) is a classic8bit microcontroller widely used in embedded system development. 1.Central Processing Unit (CPU) Architecture: Based on an8bitCISC (Complex Instruction Set) architecture, with the core being theMCS51 instruction set. Functional Modules: Arithmetic Logic Unit (ALU): Performs arithmetic and logical … Read more
Is Keil Necessary for Microcontroller Development? （Click the link to read the original article） Is Keil Necessary for Microcontroller Development?