VRD-06-20-30-04-04-200

There are many ways to expand the I/O port of a single-chip microcomputer, such as using the programmable universal parallel interface 8255, using CPLD technology, etc. This paper uses 74HC238+74HC573...[Details]

Before reading the content here, you have already installed the environment and can do a basic experiment. That is the content of the following three links. https://blog.csdn.net/x1131230123/article...[Details]

Due to the impact of the COVID-19 pandemic, Japan's Tokyo Olympics is still at risk of postponement, and the short-term order visibility of panel manufacturers Innolux and AUO has decreased. However,...[Details]

This is a Class A power amplifier with an output power of 18W. The final stage adopts a current series negative feedback circuit (the bypass capacitors at both ends of the self-supplied bias resistor ...[Details]

Combining transmission line theory and load effects, let’s talk about some precautions related to 50ω in oscilloscope measurements. Of course, these do not need to be taken into account when measurin...[Details]

Apple has brought a new MagSafe charging method to the iPhone 12 series. This magnetic charging method not only solves some of the pain points of previous wireless charging, but also opens up a new f...[Details]

On March 14, Huazhong Numerical Control issued an announcement that it plans to raise no more than 1 billion yuan through a private placement to no more than 35 (including 35) specific targets, inc...[Details]

Jim Keller, CEO of Canadian AI chip startup Tenstorrent, and Heung Soo Kim, executive vice president and head of the global strategy office of Hyundai Motor, pose for a photo in Santa Clara, Califor...[Details]

This is transformation! Equipment also has a health management plan. Cloud maintenance helps factory equipment manage its health throughout its life cycle. Preface ...[Details]

LED Background Knowledge In recent years, LEDs have become a viable new light source that is no longer just used as a "status indicator" for electronic devices. Technological advances have mad...[Details]

The basic principle of the megohmmeter is to use a hand-cranked generator to output a certain value of high voltage, apply it to the terminals to be tested , and test the insulation resistance by d...[Details]

I have been studying microcontrollers for so long, and I feel that if I want to go deeper, I have to read assembly language, or at least understand the internal structure of the microcontroller. Belo...[Details]

      IT Home reported on July 13 that Zhang Hua, vice president of Lenovo Group and general manager of the consumer business unit in China, recently showed off two new Motorola mobile phones and sai...[Details]

The 6th World Internet Conference was held in Wuzhen from October 20 to 22. At this grand event that touched the future, the power of the digital economy era was in-depth focus, and the future visi...[Details]

  LED is called the fourth generation lighting source or green light source. It has the characteristics of energy saving, environmental protection, long life and small size. It can be widely used in...[Details]