Supply of Voice Chip IC for Press Doorbell Beep Alarm Security Sound Chip Music Sound IC HFC0500 HFC0500GS-Z American MPS Multi-Port USB Charger PWM Chip Power IC ChipMagnetic Control Light DIY Model Should Use Quantum LED Light MG RG HG Universal Bandai Gundam Ultraman Timing IC SolutionControl Mainboard Circuit Board Solution Development Design Hanging Waist … Read more
【Introduction】 A circuit board company in Huizhou has seen its market value soar by 130 billion in just four months! Boss Chen Tao has transformed from a poor boy in Gansu into a billionaire, thanks to acting as a bridge for tech giants like NVIDIA and AMD. However, as the company frantically raises funds and … Read more
On Circuit Boards Philosophical Insights —— Roaming Classroom —— On the production line, circuit boards are neatly arranged, waiting to be assembled, tested, and sent to the next process. Standing in the workshop, looking at these precise green boards, I suddenly feel that they bear some resemblance to life. The manufacturing of circuit boards requires … Read more
Resolving Linker Errors: Multiple Definition of <span>yylloc</span> When compiling the Device Tree Compiler (DTC) tool, developers often encounter the following linker error: /usr/bin/ld: scripts/dtc/dtc-parser.tab.o:(.bss+0x20): multiple definition of `yylloc'; scripts/dtc/dtc-lexer.lex.o:(.bss+0x0): first defined here This error indicates that the linker has found a duplicate definition of the global variable <span>yylloc</span> in <span>dtc-parser.tab.o</span> and <span>dtc-lexer.lex.o</span>. This article will … Read more
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While my son was at school, driven by curiosity, I secretly disassembled his remote-controlled tank to see its internal structure for future modifications. The toy’s existing functions include remote control for moving forward, backward, turning in place, side movement, and firing bullets. I directly removed the wheels, and the wheel structure is indeed clever. Reverse … Read more
After soldering a circuit board, when checking whether the circuit board can work properly, it is usually not advisable to power the board directly. Instead, follow the steps below to ensure that there are no issues at each step before powering it on. Check Wiring Accuracy Checking the schematic is crucial. The first focus of … Read more
Some screenshots of electronic books 【Complete Set of Hardware Learning Materials】
Hello everyone, I am your hardware engineer friend. Today, we are going to discuss a problem that has troubled countless engineers: How do we find the breakpoints on circuit boards filled with numerous interfaces? You must have seen them: driver motherboards, IO modules… with interfaces as numerous as spider legs, and traces as dense as … Read more
With the trend towards lightweight and intelligent electronic devices, the choice of circuit board type, as a core component, directly affects product performance and cost. PCB (Rigid Circuit Board), FPC (Flexible Circuit Board), and FPCB (Flexible Printed Circuit Board, synonymous with FPC) each have their advantages and disadvantages. This article will rationally discuss these three … Read more