1 Layout Principles 1. Follow the layout principle of “large first, small later; difficult first, easy later,” meaning that important circuit units and core components should be prioritized in layout. Large first, small later; difficult first, easy later In the above image, 1 is positioned due to mechanical structure determining the power supply and terminal … Read more
Many electronic products have status indicator lights, such as TVs: Standby state lights upred light Power on state lights upgreen light It is very simple to implement, just control two GPIOs of the microcontroller (MCU): However, resources are always tight, and sometimes you may encounter situations where there are not enough GPIOs.If only using 1 … Read more
When I am doing hardware development, if I encounter a new product or project that I have never worked on before and have no experience with, I generally operate this way when selecting an MCU. First, based on the product requirements, I compile a hardware specification. For example, power management, sensor interfaces, human-machine interaction interfaces, … Read more
Hard Switch Circuit Design Example The hard switch circuit converts the series voltage of two 7-cell batteries into a 3.3 V voltage through the DC/DC converter MAX756, as shown in Figure 1. If powered directly by the batteries without a boost circuit, the voltage at the battery terminal will experience a decline from high to … Read more
01classProject OverviewProject 12 Digital Thermometer Design Project 13 Application of AT24C04 Project 14 Application of Real-Time Clock DS1302 Project 15-1 Application of A-D Converter ADC0832 Project 15-2 Application of A-D Converter TLC549 Project 16 Application of D-A Converter TLC5615 Project 17 Application of Driver ULN2003 Due to the large amount of content, this article only … Read more
Click the above “Chuangxue Electronics” to follow us with one click and easily learn electronic knowledge Chuangxue Electronics Subscription Account Daily updates of technical articles in the electronics industry and the latest news on microcontrollers, learn easily anytime, anywhere Single-Key Switch Implementation for Flashlight Power and Function Control Circuit Most flashlights have a self-locking button … Read more
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
Power supply circuits are an important component of electronic products. The quality of power supply circuit design directly affects product performance. The main types of power supply circuits in our electronic products are linear power supplies and high-frequency switching power supplies. Theoretically, a linear power supply provides as much current as the user needs at … Read more
In the manufacturing of printed circuit boards (PCBs), various problems can easily arise, one of which is the falling off of copper foils. If the problem cannot be identified, it will directly affect the quality and reliability of the product. Therefore, this article will analyze the reasons for the falling off of copper foils, hoping … Read more
The layout and wiring of printed circuit boards (PCBs) are core skills for electronic engineers. It not only concerns the functionality of the circuit but also directly affects the performance and stability of the circuit. This article will directly list the key points for connecting various components on a PCB, helping everyone to master this … Read more