What is the difference between using * and ? in the day of the week in a cron expression? I checked some information, but none of them are clear. For example, one of the information saysCron expressio...
The driver board has arrived and has been soldered. I have been busy outside for a while and was sent by the company for training. I am only starting to post now.
It uses a conventional 6MOS driver, a...
Power management, battery management (26 questions and answers in total, compiled by TI power battery expert Richard Tang)
Selection design, fast charging and wireless charging, LDO design, battery li...
Seeing that @未见's Qinheng CH224D USB PD portable soldering iron is here , I was reminded of PINE64's latest portable soldering iron, which is based on the domestically produced Boluo BL706, supports l...
The French government said on Tuesday it had launched the process of allocating 5G spectrum licenses after approving specifications proposed by the communications regulator and the financial conditio...[Details]
Based on the Lambert-Beer absorption law of infrared light absorption by gas, the latest international NDIR technology is adopted, such as electrically modulated infrared light source, high-sensiti...[Details]
The following is the program of serial port 2. The reason why it was not called out yesterday was because there was a problem with the setting and clearing of the interrupt flag after the serial port ...[Details]
Strategy Analytics, an analysis agency, said that the latest trade restrictions issued by the United States against Huawei have tied the global electronics industry and global trade together. As a su...[Details]
According to Jiwei.com, with the surge in demand for SSDs and servers, the wholesale price of NAND flash memory rose for the first time in 16 months in July, with the price of the benchmark product T...[Details]
Fault phenomenon When testing temperature, the error is large. Testing process After testing, the error in the sensor mode readback was nearly 100 times, and it was found that the analog unit of th...[Details]
Priced at 749 yuan, Apple's MagSafe external battery has officially been put on sale. However, consumers have encountered various unexpected problems after purchasing it, among which the most re...[Details]
Inductors are commonly used components in switching power supplies. Since their current and voltage phases are different, theoretically, the loss is zero. Inductors are often energy storage compone...[Details]
Previously, we introduced the pin number identification of integrated circuits. Here we will briefly understand the specific functions of the 40 pins of the 51 microcontroller. For readers who have no...[Details]
1. Do not damage the material and structure of the specimen
The biggest feature of non-destructive testing equipment is that it can perform testing without damaging the material and structure of the ...[Details]
Anhui Conch Cement Co., Ltd. (hereinafter referred to as the "Company") acquired Anhui Conch New Energy Co., Ltd. in August 2021. In order to accelerate the development of the Company's new energy ...[Details]
Mobile Industrial Robots (MiR), Denmark’s fastest growing robot manufacturer and global market leader in mobile robots, will showcase its safe, flexible and easy-to-use autonomous mobile robot (AMR) ...[Details]
1 System Introduction
With the development of wireless data communication systems, GPRS, as a new mobile data communication service,
provides users with a high-speed wireless IP service bet...[Details]
Circuit Function and Advantages Current monitoring is critical in many applications such as power management, solenoid control, and motor control. Monitoring the current at the high side of the ...[Details]
Today (17), SEMICON CHINA 2021 was held in Shanghai. Wu Hanming, academician of the Chinese Academy of Engineering and dean of the School of Micro-Nano Electronics at Zhejiang University, delivered a...[Details]
Embedded System
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