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1. Liquid crystal display principle
LCD is the abbreviation of Liquid Crystal Display, which is a digital display technology that can filter light sources through liquid crystals and color...[Details]
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Some of them are comments written by myself, so I can understand what is going on after reading them. The control settings of this chip are not very concise and a bit long-winded, but I can understand...[Details]
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Recently, Christian Dieseldorff, senior principal analyst at SEMI Semiconductor, made a speech at the 2021 online Advanced Semiconductor Manufacturing Conference (ASMC), believing that the gap in sem...[Details]
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introduction
For horn antennas, the most commonly used method to widen the bandwidth is to add a ridge structure to the waveguide part and the horn opening part. Although this antenna has been...[Details]
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With the rapid development of modern transportation industry, the number of vehicles on the road is increasing day by day, and the accompanying traffic congestion, low road use efficiency and other p...[Details]
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Recently, at the World Intelligent Connected Vehicle Conference jointly hosted by the Beijing Municipal People's Government, the Ministry of Industry and Information Technology, the Ministry of Publi...[Details]
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introduction In recent years, the rapid development of microprocessors has made the application of digital AC-AC inverters increasingly widespread in electric traction. This paper uses TI's DSP chip...[Details]
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According to businesskorea, Samsung Electronics is expected to surpass Intel to become the world's top semiconductor company in terms of sales in 2021. The report noted that the South Korean semic...[Details]
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In January this year, China Post Telecom had a new 5G phone that passed the national 3C quality certification and the Ministry of Industry and Information Technology certification. The model is...[Details]
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Looking at the development of GPS navigation technology in the domestic market, it is not difficult to find that the coexistence trend of wireless technologies used in automobiles brings infinite p...[Details]
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A comfortable resting space is realized by using technical solutions from server room issues.
Dual counter-rotating propeller fans with high quietness and low power consumption
In...[Details]
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Let a pin output high level SETB P1.0 --> D2H, 90H
Let a pin output low level CLR P1.0 -- C2H, 90H
Several instructions for assembly
MOV R6,#250 -- Write 250 to R6
DJNZ R6, label name -- cl...[Details]
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On the evening of August 24, Longli Technology released its performance announcement for the first half of 2020. It was disclosed that the company achieved operating income of 1.014 billion yuan, an ...[Details]
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Phillips 66 (NYSE: PSX) and Faradion, one of the first companies in the UK to develop sodium-ion battery cars, have entered into a technology collaboration to develop lower-cost and higher-performanc...[Details]
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introduction
This paper studies the use of MAX7219 and BC7281 control chips to achieve different display and control of LEDs.
1.MAX7219 display mode application
1...[Details]
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