2N3900A

#include REGX51.H #define uchar unsigned char #define uint unsigned int   #define PIN0 P0   #define PIN1 P1  #define PIN3 P3   sbit start=P2^7;  sbit reset=P2^6; sbit add=P2^5; sbit reduced=P2^4; ...[Details]

Google Android 12 has been officially launched, and the development of Android 13 is on the agenda. According to Android Police, Android 13 will have some interesting new features. According to the...[Details]

At 21:00 on January 14, 2023, after the operator closed the 211 switch of the 220kV Huanan Line of the Shanghai Huabinneng Power Station and performed a series of switching operations, the phot...[Details]

Traditional ward call systems are generally wired, which is not only cumbersome to install and maintain, but also has low utilization and poor real-time performance. Although wireless call systems ...[Details]

0 Introduction As an indispensable device in electronic products, the consistency and brightness of light intensity are important indicators of light-emitting diodes. Therefore, with the regul...[Details]

Apple has a massive campus of more than 700,000 square meters in Cupertino, California, and dozens of offices around the world, so it doesn't encourage employees to work from home. But when the new c...[Details]

The intelligence of cars starts with having “eyes”. 80% of the knowledge and memory in the human brain is acquired by the eyes. Some people even say that without eyes, there would be no human civil...[Details]

Compared with fluorescent lamps, white LEDs have the advantages of being simple to use and low cost. Compared with incandescent lamps, they can provide true white light. Therefore, their usage has sho...[Details]

 for(;;) { void* buffer = malloc(SIZE); memset(buffer,SIZE); process(buffer) free buffer; } This is a pseudo code from an intern (I have supervised more than 10 interns, so I have seen ...[Details]

NXP has launched a series of compact RF front-end reference boards for 5G massive MIMO radios that can significantly shorten development cycles and reduce time to market. Eindhoven, the ...[Details]

ECG detection is the detection of weak signals under strong common-mode interference. In order to improve the common-mode rejection ratio of the circuit, a cancellation drive circuit (right leg dri...[Details]

The difference between sine wave inverter and UPS application 1. Advantages of using a sine wave inverter to power load equipment a. There is no concern that lightning will damage c...[Details]

　　The five elements are the most important and basic elements in steel. The content of the five elements directly affects the performance and grade of the metal, so it is particularly important to det...[Details]

　　 The key issue of LED street light decay lies in temperature, but LED street lights usually fail in this link. Since the luminous power of LED street lights is greater than that of household lamps,...[Details]

On November 1, the Guangzhou Municipal Bureau of Industry and Information Technology issued the "Implementation Plan for Promoting the Construction of New Energy Storage Industrial Parks in Guangzh...[Details]