Year: 2025

Must-See! Four Key Development Techniques for Microcontrollers

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Must-See! Four Key Development Techniques for Microcontrollers

Must-See! Four Key Development Techniques for Microcontrollers In microcontroller application development, issues such as code efficiency, anti-interference capability, and reliability still pose challenges. Here are several fundamental techniques that should be mastered in microcontroller development. 01 How to Reduce Bugs in Programs To reduce bugs in programs, one should first consider the following out-of-range management … Read more

Introduction to 80C51 Microcontroller Pins and Functions

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Introduction to 80C51 Microcontroller Pins and Functions

The 80C51 microcontroller is a classic 8-bit microcontroller released by Intel many years ago. It is widely used in various embedded systems and integrates multiple functions such as CPU, memory, and I/O interfaces. It can connect and communicate with external devices through specific pins. This article will introduce the pins and functions of the 80C51 … Read more

Common Peripheral Circuit Design References and Insights for Microcontrollers

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Common Peripheral Circuit Design References and Insights for Microcontrollers

Having worked in the embedded industry for seven or eight years, I would like to share some hardware circuit design schemes and insights for those who are new to embedded systems. 1. Key Circuit R1 Pull-up Resistor: It clamps the uncertain signal to a high level through a resistor, maintaining it in a non-triggered state … Read more

Essential Concepts of Microcontroller Terminology

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Essential Concepts of Microcontroller Terminology

Bus: Refers to the information transmission line that serves multiple components. In microcomputer systems, various components communicate with each other through the bus. Address Bus (AB): The address bus is unidirectional and is used to transmit address information. The width of the address bus is 16 bits, thus allowing direct addressing of 64K external memory. … Read more

Master These 8 Key Points to Learn Microcontrollers Easily!

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Master These 8 Key Points to Learn Microcontrollers Easily!

With the development of the times, microcontrollers have become one of the essential learning topics for many electronic engineers. However, learning microcontrollers is not easy. If you master the following eight knowledge points or techniques, learning microcontrollers will be much more efficient! 1. Choosing Pull-Up ResistorsIn microcontroller circuits, the choice of pull-up resistors is very … Read more

Understanding Microcontrollers: Advanced Techniques

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Understanding Microcontrollers: Advanced Techniques

This Session’s Learning Implementing Two Lines of Different Content on LCD Using Code Knowledge Points for This Session: Understand how to achieve a two-line display effect on the LCD (the last learning session of microcontrollers this semester) Learning Tools: Computer, Keil uVision4 software, Proteus software Microcontroller Explanation After several weeks of studying microcontrollers, I believe … Read more

Microcontroller Basics and Applications: Serial Expansion

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Microcontroller Basics and Applications: Serial Expansion

Click the blue text to follow us 1. Overview of Microcontroller Serial Expansion The methods for implementing microcontroller serial expansion include commonly used serial bus standards such as: I2C bus, Serial Peripheral Interface (SPI), and Universal Serial Bus (USB). This chapter will focus on the I2C bus. 1. Implementation through dedicated serial standard bus (1) … Read more

Chip-Level Disassembly of 5 Microcontrollers: 51, AVR, MSP430, Lingyang 61, PIC

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Chip-Level Disassembly of 5 Microcontrollers: 51, AVR, MSP430, Lingyang 61, PIC

First, let me show you a dissection photo, cropped and enlarged, taken with a Xiaomi 1S macro shot, the 8-megapixel camera is impressive! Today, we are waiting to disassemble 5 microcontroller chips: (1) Lingyang 16-bit microcontroller SPCE061A, this was the first microcontroller I encountered, with a maximum clock frequency of 49MHz, 32KB of FLASH, and … Read more

3 Ways to Program Microcontrollers (ISP, ICP, IAP)

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3 Ways to Program Microcontrollers (ISP, ICP, IAP)

A microcontroller is a type of programmable controller that, after setting up the hardware circuit, can use programs to implement many very complex logical functions. Compared to pure hardware circuits, it simplifies the design of hardware peripherals, facilitates logical design, and enriches logical outputs. Different manufacturers of microcontrollers require different programming IDEs to achieve programming. … Read more

10 Easy and Practical Microcontroller Circuits

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10 Easy and Practical Microcontroller Circuits

1. Choosing Pull-Up Resistors for Microcontrollers As can be seen in the reset circuit, when resistor R1=10k, RST is high, but when R1=50, RST is low. Clearly, R1=10k is incorrect, as the microcontroller remains in the reset state and cannot function. This occurs because the RST pin contains a transistor, which allows a small cutoff … Read more