[i=s]This post was last edited by jennyzhaojie on 2021-3-19 00:23[/i]As mentioned last time, in the USB flash drive routine, the date of the newly created file is considered to be set, not the real ti...
Piezoelectric crystals are the core of imaging. The probe uses the piezoelectric effect of the crystal to convert high-frequency electrical energy into ultrasonic waves for outward radiation, and rece...
In the above, our driver is placed in the directory of the kernel source code and compiled into a driver module. In many cases, weget a driver source code and do not need to put it in the kernel sourc...
[i=s]This post was last edited by QWE4562009 on 2022-5-16 18:34[/i]Diodes and PotentialsIf the negative pole of VD3 is 1.2V and R1 is disconnected, then is the voltage at point A 1.2V plus the voltage...
Automatic shutdown time setting: Generally, digital multimeters use RC time-delay discharge method to achieve automatic shutdown. The main disadvantage of this method is that the time delay shutdown ...[Details]
Meizu Technology officially announced last night that the construction of the Meizu 17 launch venue will begin at 8:00 on May 4th. Visitors are welcome to come and supervise the construction, w...[Details]
Whether global variables occupy the storage space of the final program, this question has actually been answered as early as when we learned C language. I vaguely remember that when I first learned C ...[Details]
CES (International Consumer Electronics Show) is a technology event and a stage for breakthrough technologies and technological innovations. It attracts breakthroughs in technological innovation from...[Details]
On June 14, IC Insights' latest report pointed out that in the wake of tariffs and trade tensions between China and the United States, government officials and companies across China are redoubled th...[Details]
1. Hardware interface circuit between AT89S51 microcontroller and 81C55 AT89S51 microcontroller can be directly connected to 81C55 without any external logic devices. The interface circuit bet...[Details]
In fact, there is a lot of information and examples for NRF24L01 on the Internet, so there shouldn't be any big problems, but various strange problems did occur, which took a lot of time. STM32F103...[Details]
Recently, Indian researchers announced the development of a rechargeable iron-ion battery that uses low-carbon steel as the anode and has the advantages of high cost performance and high power storag...[Details]
On April 22, 2020, the ARCFOX αT electric SUV jointly manufactured by BAIC and Magna was launched. At an outdoor temperature of 17 degrees Celsius, the New Energy Intelligence Analysis Network conduc...[Details]
Gentex , a supplier of automotive automatic dimming rearview mirrors and electronics, has developed a Full Display Mirror (FDM). FDM is an intelligent rearview mirror system that uses a custom camera...[Details]
1. What is the principle of using infrared or laser distance measurement? The distance measurement principle can basically be attributed to measuring the time required for light to travel to and fr...[Details]
The hardware schematic diagram of AT24C series programming on enhanced PIC experimental board is shown in the figure below. U7 is the 24C02 chip on the experimental board, SDA is connected to the RB5...[Details]
Tesla CEO Elon Musk said that it is expected that the delivery volume will easily increase by more than 50% in 2022, and the Fremont and Shanghai factories alone can achieve a 50% increase in deliver...[Details]
Sina Digital News reported on the morning of April 25 that in the latest issue of Power On online chat, Bloomberg reporter Mark Gurman said that the iMac using Apple's self-developed chip "M3" is ...[Details]
CNC machine tools, or Computer Numerical Control Machine Tools, are computer-controlled automated machine tools. They have the characteristics of high efficiency, high precision, and high reliabili...[Details]
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