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According to the latest report from Canalys, shipments of smart speakers, including smart displays, continue to grow. In the third quarter of 2019, shipments of smart speakers grew to 28.6 million un...[Details]
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Reasons and solutions for the brake system fault indicator light
The braking system should be the most critical part of the entire car. Once the braking system fails, it is likely to bring ser...[Details]
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The Chosun Ilbo reported that Samsung and SK Hynix are about to stop supplying Huawei, and some people are worried that LG U+, which uses Huawei's 5G equipment, will be affected. According to commun...[Details]
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At present, there are five main speed regulation methods for three-phase induction motors: variable frequency speed regulation, pole-changing speed regulation, cascade speed regulation, electromagn...[Details]
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China Energy Storage Network News:
1. Background
The virtual power plant is actually not a new thing. It has been proposed for more than 20 years. It emerged in European countries su...[Details]
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The circuit of the intelligent humidity meter composed of HM1500/1520 humidity sensor and single chip is shown in the figure below. The meter adopts +5V power supply and is equipped with 4 common c...[Details]
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《 Introduction to Mobile Graphics Processing 2020 Edition includes textbook and practical exercises based on Imagination's popular PowerVR GPUs Imagination Technologies has announced the availabil...[Details]
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OPPO INNO DAY 2022 was held and the OHealth H1 home smart health monitor concept product was released to promote the development of preventive medical care. December 14, 2022, Shenzhen, China - OPP...[Details]
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Huawei will release a new generation of foldable screen phone - Mate X2 on February 22. Earlier rumors said that the flexible screen panel of the phone was exclusively supplied by Samsung Display. Bu...[Details]
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I've been working on a project recently, using an STM32F030 microcontroller. The timer uses the system timer, which interrupts every 10us. When there are few programs, there are no freezes, but as th...[Details]
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There are many technical parameters for active speakers. The following are the most meaningful for readers to purchase and use:
1: Power
Power can be said to be the most meaningful and the lea...[Details]
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//INT0 interrupt program
#include reg52.h
void delay(unsigned int x);
main()
{
IT0=1; //Falling edge trigger
EX0=1; //Open INT0 interrupt
EA=1;
P1=0xff;
while(1)
{ }
}
voi...[Details]
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introduce
As one of the most promising alternative energy sources, wind power generation is not affected by the financial crisis and economic recession and is expected to continue to grow at...[Details]
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The above diagram shows a circuit diagram with a small modification to a very popular classic circuit.
Circuit Purpose:
1) +24V to +5V +/-5%
2) Can provide current above +2A.
...[Details]
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1. Why do we need DMA?
First, let's look at the serial port to transmit information: sending strings.
Send function: Add the following send function in uart.c:
Next c...[Details]
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