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1.
History of
LED
50 years ago, people already knew
the basic knowledge that
semiconductor
materials can generate light. In 1962, Nick Holonyak Jr. of General Electric
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Three buttons: A button to start, B button to control different water flow speeds (low, medium and high), C button Design idea 1 (no interruption): The positive poles of the 8 LED lights are connec...[Details]
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On October 11, at Tesla’s “WE, ROBOT” press conference today, the Tesla Cybercab driverless taxi was officially unveiled.
The picture shows that the car is a two-door coupe with a gull-wing do...[Details]
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On August 23, 1950, Dan Abel Kimball, the Deputy Secretary of the U.S. Navy, called the Department of Justice and asked them to try to prevent a 39-year-old foreign professor from returning to his co...[Details]
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Recently, Google pushed an OTA to Pixel 6. In addition to patching bugs, it also quietly inserted the 'disable 2G' function. It did not appear in the official upgrade catalog, but was wri...[Details]
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At the beginning of 2021, Zhuhai Allianz Sharp Vision Technology Co., Ltd. (hereinafter referred to as "Allianz Sharp Vision") had a good start. On January 6, the results of the first review meeting ...[Details]
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These past few days, I have been focusing on replacing the IGBT tubes in the inverter's back stage, which is the familiar H-bridge circuit, in order to gain a deeper understanding of the relevant...[Details]
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Amid the fierce confrontation in the Sino-US trade war, the Japan-US trade war in the last century has been re-examined as a major example; and the recent Japan-South Korea trade dispute has once aga...[Details]
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People used to think that DOS did not support USB devices. This is because the USB device standard was established after Windows 95, and Microsoft, the old owner of DOS, had already decided to give...[Details]
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I have been engaged in the development of single-chip microcomputer application systems for many years and have used many types of PIC single-chip microcomputers. I deeply feel that PIC single-chip m...[Details]
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0 Introduction
I've been learning MQTT recently and found that MQTT is quite useful, so I spent some time making a simple application example, hoping to give some reference to those who need to do th...[Details]
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When programming an 8051 microcontroller application system, it is often necessary to directly operate the various memory address spaces of the operating system. The target code generated after the...[Details]
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1 Introduction
With the development of information technology, inverter power supplies are increasingly widely used in the fields of communications, military, aviation, aerospace, etc. Tradit...[Details]
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introduction
At present, the water supply systems of residential areas and buildings generally adopt constant pressure water supply systems based on variable frequency speed regulation tec...[Details]
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I have learned the general structure of the CPU. Of course, I have learned the structure of 80X86 before, so I can imagine what a RISC computer is like. If you have not studied "Microcomputer Princ...[Details]