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　　The working principle of the bistable control circuit is shown in the figure. Here is an example of a multi-point control switch for reference. Assuming that the load is a light, when the button AN...[Details]

Zigbee wireless communication and Linux embedded operating system are often contacted by electronic people. Here we have designed a CMU controller based on the ARM chip S3C2440 as the hardware platfo...[Details]

1. Regardless of reading or writing, the data is sent to the data bus when the clock line is low, and the data is sampled and latched internally when the clock line is high. Therefore, the clock line ...[Details]

There are many foundry companies in mainland China, of which three have entered the top 10 in the world, namely SMIC, Huahong Group, and Jinghe Integrated Circuit. According to the ranking in Q4 2021...[Details]

In 2020, the automotive industry continued to struggle on the road to recovery. On the one hand, automakers reduced costs by laying off employees and cutting salaries, and on the other hand, they fol...[Details]

On April 12, Bian Guangqi, deputy director of the Science and Technology Department of the National Energy Administration, led a team to Yingcheng to investigate new energy storage work and learn abou...[Details]

1. Interruption The figure above is a schematic diagram of the interrupt process. The request source that generates the interrupt is called the interrupt source, and the processing request made by ...[Details]

The buttons and LCD can form our simplest calculator. Let's write a simple integer calculator for everyone to learn. In order to make the program not too complicated, our calculator does not consider...[Details]

In recent years, with the rapid development of mobile communication services, especially the construction of 3G communication networks, the number of communication base stations has increased day by d...[Details]

1 Introduction  Order analysis is a powerful tool for studying, designing, and verifying rotating or reciprocating systems with time-varying angular velocity. Similar to frequency domain analysis, ...[Details]

The washing machine controller based on the single chip microcomputer uses a two-digit digital tube to display the washing time, and uses a driver chip to control the motor rotation . The course des...[Details]

Energy efficiency has become one of the main factors that determine the success of electronic component, subsystem and system design. In the past few years, computing and communication equipment ma...[Details]

ASML is looking for alternative sources of neon gas in case the conflict between Russia and Ukraine causes supply disruptions, Reuters reported.  An ASML spokesman said on Wednesday local time that a...[Details]

A smart bracelet is a smart product in the form of a wristband or bracelet that is worn on the wrist and uses various sensors to check the heart rate and pulse to obtain the user's physical data wh...[Details]

CNC (computer numerical control) and lathe are two common machining equipment, which play an important role in industrial production. However, there are some significant differences between them, w...[Details]