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In November 2020, the U.S. Federal Communications Commission (FCC) formally voted to allocate the 5.9GHz frequency band to Wi-Fi and C-V2X (Cellular Vehicle-to-Everything, a cellular network-based ve...[Details]

How to use the current method to judge the quality of piezoelectric ceramics Piezoelectric ceramics can be used as sensors. Using the 50mA range of a multimeter, you can a...[Details]

Electrons always flow along the path with the least resistance in a conductor. The structural elements on the surface of the conductor and near the surface are basically parallel to the surface of ...[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]

1. Introduction In the traditional variable frequency speed regulation system composed of general frequency converter, asynchronous motor and mechanical load, when ...[Details]

On January 11, the Yantai Municipal People's Government issued the "Implementation Opinions on Strengthening and Standardizing the Management of Electric Vehicle Charging Infrastructure", which wil...[Details]

Gartner's latest external storage market data shows that the entire all-flash array market fell 7% year-on-year to $2.635 billion. Among them, Huawei's sales surged by 33%, second only to market lead...[Details]

A multi-channel frequency measurement system is designed. The system consists of analog switches, signal conditioning circuits, FPGA, and bus drive circuits. It can realize voltage division, amplific...[Details]

Currently, the more commonly used serial ports are 9-pin serial ports (DB9) and 25-pin serial ports (DB25). When the communication distance is short ( 1. Description of common signal pins of DB9 and D...[Details]

In 1980, Bosch engineers began to study the problem of high-speed serial communication in automobiles, and released the CAN (Controller Area Network) bus in 1986. CAN is widely used in automobiles an...[Details]

       At the fall new product launch conference held at 1 a.m. today, Apple officially released two smart watches, Apple Watch Series 6 and Apple Watch SE. If you plan to buy an Apple Watch in the n...[Details]

Keysight E4980A tests a 10 uF capacitor, sets the test frequency to 1K, and the test level to 1V but cannot test the correct value. After verification, we found that although the level value set by t...[Details]

On January 6, at CES 2023 (2023 International Consumer Electronics Show) in Las Vegas, smart and Yikatong Technology exhibited a high-performance immersive mobile phone jointly built by the two compa...[Details]

According to TrendForce's TrendForce Research Institute, the foundry industry continued to receive orders and replenish inventory in the first quarter, and the total output value is estimated to decl...[Details]

The program C language source code is as follows: /* INT1 interrupt 5-bit count */ #include reg51.h typedef unsigned char uint8; typedef unsigned int uint16; sbit LED = P0^0; uint16 T_Count ...[Details]