WL820AB-Z01-TR

Judging from the previously exposed details, the iPhone 12 series will see a price increase this year. Since it supports 5G networks, Apple has to rely on price increases to balance costs. Accordin...[Details]

In recent years, with the diversification of wireless communication services such as online games and streaming content, the demand for faster data transmission and shorter waiting time has increased...[Details]

1. Define an empty pointer function. The parameter of the pointer function is uint8_t type ch typedef void (* usart_recv_callback)(uint8_t ch); 2. Declare this type usart_recv_callback  usart1...[Details]

The DC reversal method uses a DC source that reverses its polarity and the test object’s response is measured with a nanovoltmeter.   In the past, DC reversal monitoring was a manual operation on m...[Details]

There are many reasons for inaccurate measurement. Heyi Instruments introduces these three points: 1. Improper installation and use, debris in the pipes clogging the filter, etc., causing scaling of ...[Details]

The so-called enhancement or depletion mainly refers to the inversion layer in the MOS tube. If the inversion layer does not exist when there is no power, and the inversion layer appears after the vo...[Details]

Before many consumers can react, many names and brands of mobile phones have appeared on the market, and some brands have become popular all of a sudden. Perhaps this is the trend of mobile phones! T...[Details]

      On April 20, @Queena_小米, product director of Xiaomi’s camera department, revealed the new interface of Xiaomi Camera. There are two options. In fact, the swipe-up gesture option received a lot ...[Details]

The future of transportation is either clear or becoming more complicated. According to Reuters, 21 EU countries oppose the European Commission's proposal to use Wi-Fi as the communication standard f...[Details]

Tsinghua Unigroup and its subsidiary H3C appeared in Hangzhou at the 2019 National Mass Entrepreneurship and Innovation Week (abbreviated as "Mass Entrepreneurship and Innovation Week"). Premier Li K...[Details]

　　In the design of modern portable products, on the one hand, we need stronger power supplies to cope with the high current requirements brought by product updates, and on the other hand, engineers m...[Details]

Remote measurement and control terminal (RTU) was introduced to China in the 1980s as a product that embodies the idea of ​​"distributed measurement and control, centralized management" and has been ...[Details]

Assembly starts from org 0000h, so how does keil c51 start the main() function? keil c51 has a startup program startup.a51, which is always compiled and linked with the c program. Let’s see how it an...[Details]

In the wave of changes in the automotive industry, semiconductor technology is like a surging power, driving the industry forward. When you sit in the car, press the start button, and enjoy the smo...[Details]

　　1. Bandwidth: refers to the frequency value when the sinusoidal input signal decays to 70.7% of its actual amplitude, that is, the -3dB point (based on a logarithmic scale). This specification indi...[Details]