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According to Tencent, the latest news from the industry chain said that the shipment volume of the Mate 30 series has exceeded 12 million units, and the momentum is still growing. It is expected that...[Details]
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The whole world knows that the United States is addicted to sanctions, and this time its claws have extended to the Middle East. The Middle East also has a dream of large models According to for...[Details]
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Zigbee wireless communication and Linux embedded operating system are often contacted by electronic people. Here we have designed a CMU controller based on the ARM chip S3C2440 as the hardware platfo...[Details]
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Using Systick timer to achieve delay 1. SysTick timer characteristics The SysTick timer is a 24-bit down counter, that is, when vlue is decremented to 0, an interrupt is triggered and the load va...[Details]
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On April 15, Dongxu Optoelectronics released its 2020 performance report, stating that the company achieved operating income of 7.091 billion yuan, a decrease of 59% from the same period last year; ...[Details]
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According to XDA, YouTube channel host M. Brandon Lee revealed the "Motion Sense" feature of Google Pixel 4, which allows users to switch songs by waving left or right next to the phone, and waving o...[Details]
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With the rapid development of digital and portable products such as mobile phones, PDAs, DSCs, GPS, and the improvement of LCD manufacturing technology. Color LCD screens are becoming more and more...[Details]
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Nanotechnology research has gone deep into the molecular level, atom by atom, to construct new structures with completely new properties. In particular, the field of nanoelectronics is d...[Details]
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Issues that need to be noted when using a handheld rangefinder: The handheld rangefinder cannot be aimed at the human eye for direct measurement to prevent damage to the human body. At the same time, ...[Details]
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On March 12, Yan Shengjun, Chairman of China Tianying Co., Ltd., and his delegation visited Zhangye City and reached a strategic cooperation framework agreement with the Zhangye Municipal People's ...[Details]
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1. Project Overview 1.1 Introduction The GSM wireless intelligent transformer integrated alarm system based on AVR designed in this project aims to provide a wireless intelligent transformer inte...[Details]
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The hardware and software implementation of the three-phase asynchronous motor protection system was studied. The Freescale DSP 56F807 microprocessor was used as the control core, and other functio...[Details]
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1. S7-200 SMART digital I/O wiring diagram
Different CPU models input/output wiring
Figure 1. CPU SR20 wiring diagram
Figure 2. CPU SR40 wiring diagram
Figure ...[Details]
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Metal tube float flowmeter is a variable area flow meter based on float position measurement. It has the characteristics of simple structure, intuitive, low pressure loss, and easy maintenance. Gas me...[Details]
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What is a constant current source?
Constant current source, AC constant current source, DC constant current source, current generator, large current generator, also called current s...[Details]
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