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Earlier this year, vivo launched a new smartphone under its S series of devices - vivo S7. Today, the company launched a new version of the product called vivo S7e. The smartphone features a 6.44-i...[Details]
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Jiangsu Province has issued the "Jiangsu Province Action Plan for Promoting the Development of the Internet of Vehicles (Intelligent Connected Vehicles) Industry (2019-2021)". The action plan p...[Details]
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1. Why can't my electronic scale be charged or the charging indicator light does not measure or respond?
Analysis: 1. Please make sure that the 110V/220V voltage switch of the electronic scale is...[Details]
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Recently, XDA editor-in-chief Mishaal Rahman exposed a new Xiaomi flagship phone codenamed "Hercules" on a social platform. The phone will be equipped with a Snapdragon 855 processor, a triple rear c...[Details]
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To avoid measurement errors, specific measurement techniques must be used depending on the value of the resistor being measured. For small resistance measurements ( 100Ω), lead resistance and thermal...[Details]
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Abstract: The design uses two sets of wireless transceiver modules and AT89S51 single-chip microcomputer as the core of the control and signal transmission of the new alarm, and cooperates with the...[Details]
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There are two commonly used compilation environments for XMEGA128: GCC and IAR for AVR. GCC is AVR Studio 5.0 developed by ATMEL, which is free software and has built-in routines for the development ...[Details]
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1 Introduction
The frequency converter is an AC speed control device developed in the middle of the last century. It was developed to solve the problems of traditional AC motor speed control difficu...[Details]
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The keyboard scanning method is: row lines P10~P13 are output lines, and column lines P14~P17 are input lines. At the beginning, the microcontroller outputs all row lines (P10~P13) at a low level. At...[Details]
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To use a low-cost 32-bit processor, developers face two choices: processors based on the Cortex-M3 core or the ARM7TDMI core. How to make a choice? What are the selection criteria? This article mainly...[Details]
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TFT-LCD is a thin film transistor liquid crystal display. Its full English name is: Thin Film Transistor-Liquid Crystal Display. TFT-LCD is different from the simple matrix of passive TN-LCD and STN...[Details]
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1 Introduction
I used a PGJ1-5 reactive power compensation panel in a 400V switch room. The panel contained 10 BCMJ parallel capacitors, each with a rated output of 16kVar, a rated voltage...[Details]
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As a common sensor for measuring liquid level, liquid level switch is widely used in industry, food, medicine, petroleum and other industries. However, due to the complex working environment and di...[Details]
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Preface This chapter will explain the FreeRTOS queue function API in the W80X SDK and give a simple demonstration at the end. 1. What is a queue? In simple terms, a queue is a carrier for data tran...[Details]
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