The flowmeter is an indispensable instrument for measuring the flow of liquid and gas. Everyone must have seen many different types of flowmeters. The correct installation method i…

DMA technology is an abbreviation of Direct Memory Access. It means "memory direct access." It refers to a high-speed data transfer operation that allows direct reading and writing of data between external devices and memory, neither by the CPU nor by CPU int…

In the single-chip system, the buttons are common input devices. In this article, Jiang introduces several key hardware and software design skills. Generally, there are generally f…

The signal input of the power quality online detection equipment should be multiple sets of three-phase channels, that is, one device together detects multiple bus voltages and multiple line currents. At that time, a single device can…

I don't know if you still have the impression that during the Olympic Games in Rio de Janeiro, Brazil, Japan’s NHK had an 8K resolution live broadcast of the opening ceremony. Many people who have watched are immersed in the high-definition world brought by 8…

What is Hibernate?

The direct translation is called "hibernation". The functionality provided by the framework is data persistence operations.

Hibernate is a lightweight, built-in framework …

In recent days, in the open space to the west of the Xiamen Sports Training Center, a large number of bicycles are shared and piled up like a mountain, overlooking from the air, like…

With the development of modern electronic technology and power devices, switching power supplies are widely used in computer and peripheral communication, automatic control, household appliances and other fields for their small size, light wei…

On Thanksgiving Day, November 23, Durex made a big vote. It has smashed 13 brands on Weibo, and has interacted with major brands in a cross-industry form in the form of “commercial cross-blow”. Among them, there is no shortage of pens, and it has become a textbook-l…