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Doppler measurement system
Doppler measurement systems use the Doppler effect to measure the velocity of a moving object (solid, liquid or gas). Probably the most famous application is the radar...[Details]
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In pipeline design, it is necessary to analyze and calculate the flow rate and pressure drop of the fluid in the pipeline. As we all know, the flow rate and pressure drop in the pipeline are related t...[Details]
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A simple automatic shutdown circuit is installed on the DT-830 digital multimeter. The device is small in size, simple in structure, and does not require debugging. In principle, it can be suitable f...[Details]
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Serial communication LCD1602 display
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Kernel version:2.6.14
CPU architecture:ARM920T
Recently, I was analyzing copy_from_user of ARM Linux. The main function is implemented by __arch_copy_from_user. This function is defined in the linu...[Details]
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Single-phase motor starting principle:
When a single-phase sinusoidal current passes through the stator winding, the motor will generate an alternating magnetic field. The strength and directi...[Details]
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This course first introduces you to some basic functions of a general oscilloscope. Our engineers will perform actual operation demonstrations to fully understand the most basic functions and corresp...[Details]
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MC14499 is a highly integrated LED display driver developed by MOTOROLA, which uses dynamic scanning to display and drive four LED digital tubes. It integrates latch, decoding, driving, sca...[Details]
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First of all, if you want to use PWM mode, you have to choose which timer to use to output PWM! Except for the two ordinary timers TIM6 and TIM7, which cannot output PWM, the rest of the timers can o...[Details]
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Turning the time back to two years ago, Huawei Automobile, which uses smart technology as its trump card to enter the field of smart electric vehicles , has not yet polished an intelligent driving sy...[Details]
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1. Experimental task: Use P1.0-P1.3 of AT89S51 microcontroller to connect four LEDs L1-L4 to indicate the current count data; use P1.4-P1.7 as the input end of preset data, connect four slide switc...[Details]
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MTD, Memory Technology Device, is a memory technology device. In the Linux kernel, the MTD layer is introduced to provide a unified interface for NOR FLASH and NAND FLASH devices. MTD isolates the ...[Details]
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This year is the year of decisive battle and victory in poverty alleviation, and it is the year for Yunnan Power Grid to "improve quality and promote poverty alleviation."
Yunnan Power Grid Co...[Details]
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When designing a printed circuit board, design engineers will carefully consider the copper wire routing and component placement. If these two points are not fully considered, the efficiency, max...[Details]
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A CAN bus repeater is a device used to extend a CAN bus network. It can amplify and forward CAN bus signals to achieve longer-distance communication. This article will detail the installation locat...[Details]