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PWM control is widely used in various control systems, but the adjustment of pulse width is generally implemented by hardware. If a PWM controller is used or a PWM circuit is added to the system , the...[Details]
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introduction
The application of LED in lighting is a hot topic in the lighting industry in my country and even in the world. Through the continuous efforts of practitioners, the system eff...[Details]
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There are two ways to scan the single-chip matrix keyboard: The first one is the line-by-line scanning method, which is to scan line by line. The implementation code is as follow...[Details]
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Preface
The automobile body visual inspection station is a large-scale special inspection system used to measure the three-dimensional spatial coordinates of key points of the automobile body....[Details]
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This morning, Apple pushed the official version of watchOS 5.2 to Apple Watch users. Many users were pleasantly surprised to find that after the system update, their Apple Watch 4 supports ECG electr...[Details]
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FPGAs are used in 81% of electronic systems, including many commercial and defense products, and most FPGAs use BGA packaging. The BGA packaging is characterized by small solder balls and small sol...[Details]
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Schematic diagram of length calibration field The main calibration items include: additive constant, multiplicative constant, measurement repeatability, fixed error, proportional error and other co...[Details]
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According to foreign media reports, Waymo's self-driving cars use computer vision technology and artificial intelligence to identify the surrounding environment and make real-time decisions on how th...[Details]
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0 Introduction
In electromechanical devices controlled by microcomputer motors, it is often necessary to convert digital signals into analog signals to drive the operation of electromechanical devic...[Details]
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Embedded devices with ARM as the core are products with computers as the core, and they must have memory to store software. The software in the single-chip microcomputer is stored in the ROM memory in...[Details]
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According to foreign media reports, Tesla recently applied for another battery patent. The new battery will not be equipped with a tabless electrode. The company's CEO Elon Musk said: "This patent i...[Details]
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A certain type of optical cordless mouse uses two AA alkaline batteries. It does not have a power switch. When not in use, it automatically switches the light source on and off at a low duty cycle ...[Details]
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Small signal square law detector circuit
Small signal (usually input voltage is below 0.2V) detection uses the curved part of the diode volt-ampere characteristic curve. Its basic ci...[Details]
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In my opinion, PCB soldering is an art. Through constant practice, you can easily learn to assemble complex circuit boards and small pitch SMD chips. On the way of learning, learning and accumulating ...[Details]
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1. Scheme demonstration and comparison
1. The focus of this design is on the control and drive of the stepper motor. The controlled motor in the design is a four-phase six-wire stepper mot...[Details]
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