GMPM1-E113PT620E5-460S1

      Recently, many netizens reported that when they used the built-in calculator on smartphones such as OPPO, Huawei, Apple, and Xiaomi to calculate "10%+10%", the result was 0.11 instead of 0.2. T...[Details]

Whether considering personal safety or property safety, it is a good idea to use video surveillance. Video surveillance not only helps to detect and stop ongoing criminal activities in a timely ...[Details]

Are you still envious of others who buy new phones every day? There are surprises every week? Don't worry, come to Sina Public Testing, and you can try out new and good things with just a few clicks....[Details]

Controlling source impedance In the previous article, we discussed how the source impedance of the input filter becomes resistive and how it interacts with the negative input impedance of the switchi...[Details]

Electrolytic capacitors leak over time. The circuit in Figure 1 can be used to test capacitors to determine if they are worth using. The CREF/RREF ratio sets the limit on leakage. The values ​​sh...[Details]

　　　Constant current drive circuit design: The LED drive circuit based on PT4115 is shown in Figure 1. The circuit can use Atmega8 microcontroller as the controller and set two input interfaces. The i...[Details]

"The PC has developed to the third stage, from the GUI interface triggering changes in production tools to the Internet technology bringing changes in learning and entertainment tools. Now, with th...[Details]

      Key points       This article is a self-titled article by zhoufans netizen who is studying the series of lectures on "Knowledge points that must be mastered for DIY computers". It can also be...[Details]

Embedded system design requires understanding not only the hardware, but also how the software affects and interacts with the hardware. The paradigm required to design hardware may be completely oppo...[Details]

The latest forecast from market research firm Canalys shows that global smartphone shipments this year will drop 10.7% from 2019. However, as mobile phone manufacturers continue to launch new phones,...[Details]

According to the China Trade Relief Information Network, on November 5, 2021, the U.S. International Trade Commission (ITC) issued an announcement stating that it had made a partial final ruling of 3...[Details]

Rohde & Schwarz and NOFFZ, a market-leading supplier of custom test systems, have collaborated to integrate the proven R&S compact test range (CATR) technology and the advanced radar echo simulator R...[Details]

In addition to counting steps and monitoring heart rate, smart bracelets can also be used for work supervision. According to Zero Distance Video, sanitation workers in the Hexi area of ​​Nanjing are ...[Details]

1. Introduction Video server is a special embedded device that compresses, stores and processes audio and video data. It is widely used in remote monitoring and video. Video server uses compre...[Details]

1. Change the coordinates displayed on the interface When playing a video, the video starts playing from the coordinate (0,0). To change the coordinate, follow the steps below: By che...[Details]