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1 Introduction
The daily routines of government agencies and schools require timing and signal reminders. The author uses AT89C51 single-chip microcomputer and LM386 audio power amplifier ...[Details]
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Characteristics and electrical parameters of LEDs
1. The significance of limit parameters
(1) Allowable power consumption Pm: The maximum value of the product of the forward DC voltage acr...[Details]
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Recently, a new MIUI13 beta desktop has appeared in the Xiaomi App Store. It is expected to be the beta version of MIUI 13. The application uses new wallpapers and watermarks. The screenshots show ...[Details]
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In order to further deepen the company's global strategic layout, better explore the international market and serve international customers, Xinwanda's subsidiary Xinwanda Power Technology Co., Ltd...[Details]
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A pull-up resistor pulls an uncertain signal to a high level through a resistor. At the same time, this resistor also plays a current limiting role. A pull-down resistor pulls the signal to a low lev...[Details]
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A few days ago, Flyme’s official Weibo announced that the Flyme 9.2 stable version ushered in a new wave of updates. This update is compatible with the Meizu 18 series, Meizu 18s series and Meizu 18X...[Details]
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I'm working on the host computer for STM32 firmware update recently, and I'm going to record the problems I encountered. unsigned long nFileBytes; //Used to store the total number of ...[Details]
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As the world pays more and more attention to sustainable energy and environmental protection technology, electric vehicles (EVs), as an important carrier of green travel, are undergoing unprecedent...[Details]
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Let's analyze why PIC has BANK and PAGE settings from the instruction structure of PIC microcontroller. First, let's see why PIC divides the RAM area into multiple BANKs.
Carefully o...[Details]
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On August 15, Xiaomi officially announced: "With the three certificates complete, the Xiaomi 5G era is now in place! Xiaomi's second 5G flagship phone is about to debut!" 5G mobile phones must have...[Details]
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At present, there are more and more opportunities for audio amplifiers to be interfered by strong RF electric fields. Many audio amplifiers are not designed with high-frequency signal interference ...[Details]
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1. By brand
Several popular world brands of laptop chargers (in alphabetical order):
Acer (Chinese: Acer, also a world-famous laptop brand)
Acharger (Chinese: The world's first p...[Details]
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1 Introduction
At present, some equipment still uses the traditional 400Hz variable frequency unit for power supply, which has the disadvantages of being bulky, inefficient, noisy, poor dynami...[Details]
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LCD1602： (16*2 characters A:Current display B: Currently unavailable initialization: #include reg52.h #define uchar unsigned char #define uint unsigned int sbit rs=P2^4; sbit rw...[Details]
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The European Microelectronics Summit was held in Paris not long ago, with the theme of "Prospects for V2V/V2I Technology Demand". Compared with the currently hotly debated autonomous vehicles,...[Details]
RF/Wirelessly
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