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1 Commonly used multi-base digital modulation techniques and applications
1.1 QPSK (Quaternary Phase Shift Keying) Technology and Application
(1) QPSK technology
In phase shift keying (PS...[Details]
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Physical picture 1
Circuit Diagram
Physical picture 2
Control requirements: Press the start button SB2 to start the motor, press th...[Details]
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The ability to see has long been considered a unique trait of living organisms, allowing us to recognize shapes, colors, textures, and depths, and interact with the outside world. Now, this ability...[Details]
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On January 7, Reuters reported that Samsung Electronics said on Friday that its fourth-quarter operating profit may surge 52% year-on-year to 13.8 trillion won (about US$11.5 billion), the highest in...[Details]
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SMIC responded to the first round of inquiries from the Shanghai Stock Exchange, including the litigation between it and Innovative Foundry Technologies LLC (hereinafter referred to as "IFT"). ...[Details]
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Pfeiffer Vacuum is celebrating its 130th anniversary. Since its founding in 1890, Pfeiffer Vacuum has been setting new standards in vacuum technology. As a company with a long history, Pfeiffer Vacuu...[Details]
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Smart electric vehicles are developing at an unstoppable pace. Accordingly, upstream and downstream companies in the power battery industry chain have also seen an increase in performance and investm...[Details]
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Introduction to Needle Flame Tester Needle flame tester is suitable for testing the flame retardant properties of electronic components, electrical parts, mechanical parts, injection molded parts and...[Details]
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Seed moisture is a key factor affecting germination rate. The moisture content of corn seeds is generally between 20% and 30% when they are harvested. If they are not dried in time or the method is i...[Details]
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At present, the ones we hear most are max232, pl2303, and ch340.
Before talking about MCU download, we need to talk about a few concepts:
TTL level:
The main type of TTL integrated circuit is t...[Details]
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This time I will continue what I said last time and talk about compound keys and matrix keyboards. Let's talk about the matrix keyboard first, because the key combination code I wrote is based on ...[Details]
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On May 24, NXP announced that it would use TSMC's 5nm process to build the next-generation S32 series automotive processors, and would introduce them into the Model C of Hon Hai and Yulon's joint v...[Details]
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The C51 compiler supports pointer declaration using an asterisk (*). You can use pointers to perform all operations in the standard C language. In addition, due to the unique structure of 8051 and it...[Details]
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Introduction
Modern logistics systems have entered the stage of informatization. The informatization distribution system has an important impact on informatization logistics. The informatiz...[Details]
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As the new four modernizations enter the "second half" of intelligentization, intelligent driving and intelligent cockpit have become the hottest topics in the industry. However, many people tend t...[Details]