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Many applications require a sine wave with stable frequency and/or amplitude as a reference for calibration or measurement. Low harmonic distortion is also required for applications such as LVDT signa...[Details]
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There are many types of magnetic floats. According to the material, they can be divided into 304 stainless steel magnetic floats, 316L stainless steel magnetic floats, PP type plastic floats, 304 l...[Details]
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The 2020 Tianyi Smart Ecosystem Expo and the 12th Tianyi Smart Ecosystem Industry Summit Forum were held in Guangzhou. At the conference, China Telecom officially announced that 5G SA was the first i...[Details]
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An information exchange terminal is an embedded device that provides information processing, storage and query functions for personalized users with the main purpose of information exchange. Comp...[Details]
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iQOO will release the new generation flagship iQOO 5 series on August 17. On August 8, iQOO unveiled the real iQOO 5 in a trailer. As shown in the picture, iQOO 5 uses a hyperbolic flexible screen ...[Details]
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"Ding Dong" doorbell 1. Experimental task: When the switch SP1 is pressed, the AT89S51 microcontroller generates a "ding-dong" sound and outputs it from the P1.0 port to the LM386, and then sends it ...[Details]
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The connection line between the insulation resistance meter and the equipment under test or electrical circuit should be a single multi-stranded copper insulated wire, and double-stranded insulated w...[Details]
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STM32 hardware I2C debugging is indeed much more troublesome than simulation. There are a lot of configurations. I debugged the F series. I thought it would be easy to directly port to the L series, ...[Details]
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The basic theory of sewage flow meter is Faraday's law of electromagnetic induction. When the conductor cuts the magnetic lines of force, an induced electromotive force will be generated in the condu...[Details]
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1. Definition and classification of photovoltaic inverter industry
The inverter is the brain of the photovoltaic power generation system. It converts the DC power generated by the componen...[Details]
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Using uboot to write nand flash does not require FS support, but when I checked the uboot source code, I found this line "nand write.jffs2 xxxxx.." jffs is a file system, why is that?
nand...[Details]
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0 Introduction
国内单片机多机通信方向技术开发应用已有相当长时间,在智能化仪器、工业自动控制、家用电器机电一体化等方面的应用成果尤为显著。本文介绍AT 系列单片机多机通信在程控交换机中应用。
A multi-machine programmable switching system expands 1 to 2 telephone lines into 4 ...[Details]
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In our lives, safe use of electricity is a serious issue. For example, one of the normal operating conditions of household appliances is whether the insulation level of its insulating materials (i.e. ...[Details]
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Mitsubishi PLC (Programmable Logic Controller) is a control device widely used in the field of industrial automation. It controls various mechanical equipment through programming and has the charac...[Details]