-
The following is a method for calculating sunrise and sunset times that vary with longitude and latitude. I have successfully used it in an intelligent street light controller . I hope it will be help...[Details]
-
1 Exceptions and interrupts (Cortex-M3) 1.1 Exceptions and Interrupts Exact words: The Cortex-M3 is equipped with an exception response system at the core level, supporting a large number of s...[Details]
-
With the development of science and technology, cars have become the main means of transportation for people's daily travel. However, car theft cases are common, causing huge economic losses to car...[Details]
-
1 Working principle of EPS emergency power supply
When the grid power is normal, the emergency power supply transfers grid power to the load, and manages the battery charging at the same ti...[Details]
-
As the most commonly used voltage and waveform measuring instrument, oscilloscope is widely used in the field of radio measurement. A large number of high-precision product measurement requirements p...[Details]
-
In 2019, Jinan Power Supply Company fully implemented the strategic requirements of State Grid Corporation of China for the construction of ubiquitous power Internet of Things, promoted the constru...[Details]
-
Tonight at 20:00, Wang Yinfeng, President of Huawei Consumer Business Tablet and PC Product Line, and Han Xue, a Huawei MatePad Pro super user, will be guests in the studio to deeply appreciate the n...[Details]
-
The spectrum analyzer is a multi-purpose electronic measuring instrument. It mainly measures signal parameters such as signal distortion, modulation degree, spectral purity, frequency stability and i...[Details]
-
1. No isolation amplifier or insulation amplifier is required The biggest difference between a storage recorder and a digital oscilloscope is whether the input channels and the host and input are...[Details]
-
1. Bus Overview The computer system is based on the microprocessor. Each device must be connected to the microprocessor and must work in coordination. Therefore, the concept of bus is introduced in t...[Details]
-
2.1 Hardware Design
Hardware design is to build a suitable interface circuit to connect SST39SF040 to the system bus of MCS-51. According to the structural characteristics of SST39SF040 an...[Details]
-
3 Measurement results and analysis
3.1 LED volt-ampere characteristics
The volt-ampere characteristic curves of five color LEDs at room temperature were measured by Figure 1 and are shown in ...[Details]
-
OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
-
The photoresist sector moved up abnormally in the afternoon, Jianghuaiwei hit the daily limit, Jingrui shares rose more than 6%, Qiangli New Materials, Shanghai Xinyang, Nanjing Optoelectronics and o...[Details]
-
1 Introduction
At present, wired data transmission is basically used at oil field drilling sites across the country. Wired transmission has many disadvantages. On-site wiring is complicated an...[Details]
Talking
京公网安备 11010802033920号
EEWORLD