3C Electronics

Beginner’s Guide to STM32 Microcontroller and Practical Tutorial

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Beginner's Guide to STM32 Microcontroller and Practical Tutorial

Course Details: This course mainly introduces the development process, methods, techniques, and design concepts of STM32 microcontroller application systems through typical examples, focusing on the system design of STM32 microcontrollers, combining software and hardware, in a simple and easy-to-understand manner. This book comprehensively explains various technologies in microcontroller development through 30 module examples, including microcontroller … Read more

What Is the Relationship Between PCB and Integrated Circuits?

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What Is the Relationship Between PCB and Integrated Circuits?

In the process of learning electronics, we often see Printed Circuit Boards (PCBs) and Integrated Circuits (ICs). Many people find it difficult to distinguish between these two concepts. In fact, they are not that complicated. Today, let’s clarify the differences between PCBs and integrated circuits. What is PCB? A PCB (Printed Circuit Board) is an … Read more

Meaning of English Terms on Circuit Boards

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Meaning of English Terms on Circuit Boards

The English terms on circuit boards, in addition to letters and numbers representing component numbers, also include some signal annotations such as VCC, VDD, GND, etc. We often see these English terms on circuit boards, but what do they mean? Let’s decode them together. Before that, let’s familiarize ourselves with the letters representing commonly used … Read more

A Brief History of PCB Development

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A Brief History of PCB Development

Like many other great inventions in history, the printed circuit board (PCB) as we know it today is built on the foundation of historical advancements. In our little corner of the world, we can trace the history of PCBs back over 130 years, when the great industrial machines of the world were just beginning to … Read more

Essential Circuits to Understand in Electronics

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Essential Circuits to Understand in Electronics

Analog Signal refers to information represented by continuously varying physical quantities, such as temperature, humidity, current, voltage, etc. Its value changes continuously and can take an infinite number of different values within a certain time range. Digital Signal has discrete, non-continuous values and is commonly represented by 1 and 0 in binary. In digital circuits, … Read more

How to Design PCB for Different Control Boards?

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How to Design PCB for Different Control Boards?

The control board is a core component in electronic devices, responsible for crucial functions such as instruction transmission, data processing, and logic control. Through built-in circuit boards and electronic components, it achieves precise control over the operational status of devices. With advancements in technology, the application fields of control boards are increasingly diverse. How should … Read more

How to Distinguish Between Strong and Weak Electricity in PCB Design

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How to Distinguish Between Strong and Weak Electricity in PCB Design

When starting to learn PCB design, it is often emphasized by experts to separate strong electricity and weak electricity. So what exactly are these two types of “electricity” and how can they be distinguished? 1. What Are Strong and Weak Electricity? Strong Electricity: Definition: Refers to alternating current or direct current greater than 2V (usually … Read more

12 Important Details to Consider in PCB Layout

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12 Important Details to Consider in PCB Layout

1. Spacing Between SMD Components The spacing between SMD components is a crucial issue that engineers must pay attention to during layout. If the spacing is too small, it becomes very difficult to print solder paste and avoid solder bridging.The recommended distances are as follows: Spacing requirements for SMD components: Same type of components:≥0.3mm Different … Read more

Advantages and Disadvantages of PCB Surface Treatment Processes

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Advantages and Disadvantages of PCB Surface Treatment Processes

With the continuous development of electronic science and technology, PCB technology has also undergone tremendous changes, and manufacturing processes need to progress as well. At the same time, the requirements for PCB circuit board processes in various industries have gradually increased. For example, circuit boards in mobile phones and computers use both gold and copper, … Read more

Correct Placement of Capacitors on PCBs

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Correct Placement of Capacitors on PCBs

The circuit board cannot do without power chips. We generally use a large capacitor (100μF to 1000μF) and a small capacitor (0.1μF or 0.01μF) as the power filtering capacitors.The large capacitor is used to filter out low-frequency noise, while the small capacitor is used to filter out high-frequency noise.You have designed so many circuit boards; … Read more