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This is a password lock implemented by AVR microcontroller. It consists of 16 hardware matrix keyboards, digital tubes and buzzers. The correct initial password of the system is 0, 1, 2, 3. When we pr...[Details]
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IT Home reported on August 17 that Xiaomi MIX 4 went on sale yesterday. It is equipped with a Snapdragon 888 Plus processor, a CUP full screen, a 20-megapixel under-screen camera, and an integ...[Details]
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In response to the current tight semiconductor supply, Germany's SNV (Stiftung Neue Verantwortung, a German non-profit think tank dedicated to addressing the challenges that new technologies bring to...[Details]
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1. Introduction
With the rapid development of wireless technology, wireless devices are increasingly being used in various fields. More and more home electronic terminal devices are beginning ...[Details]
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"As of February 18, 2010, the number of HDMI adopters has reached 970 and is expected to reach 1,000 by the end of this year." Steve Venuti, President of HDMI Licensing LLC, proudly shared the organiz...[Details]
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1. Introduction
As a composite device, the insulated gate field effect transistor (IGBT) integrates the voltage drive and high switching frequency of MOSFET and the low loss and high power c...[Details]
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In the past, there were usually only two automated
testing
methods:
In-Circuit Testing
(ICT) and Functional Testing.
With the dramatic increase in PC performance over the past...[Details]
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introduction
FSO (Free space optical) refers to the communication between two or more terminals using laser beams transmitted in space as information carriers. It includes laser communications betw...[Details]
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According to foreign media reports, Forsee Power, an expert in intelligent battery systems and a leader in heavy-duty vehicle batteries in Europe, has announced the launch of a new generation of ultr...[Details]
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In one week, I went from being an illiterate who had never used an STC microcontroller and didn't know what an SPI interface was to making the entire communication process of nRF24L01 completely bug-...[Details]
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Network analyzers are the main instruments for testing and debugging RF components. With the rapid development of radio communication equipment, the demand for RF devices has also increased dramatica...[Details]
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In March 2021, Asus launched the ROG Phone 5 series, which includes the ROG Phone 5, 5 Pro, and 5 Ultimate. In August, the company released updated versions of the phones, called ROG Phone 5s and 5s ...[Details]
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1. Only variables that are frequently used or require high computing speed are placed in the data area, such as the count value in a for loop.
2. Other variables that are not frequently called and do...[Details]
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1) The 2×2 matrix keyboard circuit is shown in the figure //////// Picture 1 (2) Keyboard scanning subroutine: KEY1: ACALL KS1; Call the subroutine to determine whether a key is pressed ...[Details]
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Many mobile phone brand manufacturers have released new products one after another, including smart watches, TWS headphones, smart bracelets and other new wearable devices. The release of these new...[Details]
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