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In the past, in the field of high-definition surveillance systems, the industry focused on network high-definition surveillance, believing that network storage must be the ultimate choice for users...[Details]
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In the following system, 8051 expands the off-chip program memory and data memory at the same time. The chip select signals of the two memories are both grounded, that is, they are valid at the same ...[Details]
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The MCU control register contains the control bits for power management. · Bit 5–SE: Sleep Enable In order for the MCU to enter sleep mode after executing the SLEEP instruction, SE must be set. To ...[Details]
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According to statistics, the global demand for lithium-ion batteries has reached 1.3 billion, and this figure is increasing year by year as the application field continues to expand. With the rapid i...[Details]
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6. Belt rigidity
In a belt-based transmission, a servo coupling connects the output pulley to the rotating load. The weight of the load is supported by a toroidal bearing. The belt-to-pulley r...[Details]
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Recently, Professor Pan Feng and Associate Professor Zheng Jiaxin from the School of Advanced Materials, Shenzhen Graduate School, Peking University, jointly wrote an opinion article in National Scie...[Details]
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The news of the DreamDroid Trojan program appearing in the Android Market has caused a strong reaction. After all, no one likes to waste the limited functions of mobile devices on antivirus s...[Details]
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The novel unpackaged LED has better heat dissipation conditions and integrates epitaxy, die and packaging processes, making it easier to match secondary optical design lighting fixtures… LED li...[Details]
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Recently, the century-old technology magazine MIT Technology Review officially announced the list of "50 Smart Companies" in 2019. This list is eye-catching, with major companies such as Huawei, Baid...[Details]
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This paper analyzes the working principle of the voltage protection circuit composed of a single junction transistor and a thyristor, and proposes a circuit that uses the LM339 voltage comparator to ...[Details]
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0 Introduction
In recent years, with the continuous improvement of people's living standards and technological levels, household appliances have become increasingly refined in terms of style an...[Details]
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Today, Honor Mobile's official Weibo account announced that it will hold a new product launch conference at 19:30 on December 1 to officially launch the Honor 60 5G series of mobile phones. T...[Details]
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5G is the latest generation of network technology, with speeds exceeding 1Gbps and expected to reach 10Gbps in the future. However, 5G cannot function in ground-to-space communications, as curr...[Details]
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/*ATavr 128 function: external interrupt INT0, INT1*/
/*GCC compiler*/
#include avr/io.h
#include util/delay.h
#include avr/interrUpt.h
#define SET_1(a,b) a|=(1 b)
#define CLE_0(a,b) a&=~(1 b)...[Details]
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Drift of electrolyte analyzers and blood gas analyzers is generally not common.
Drift phenomenon is when one or more test items have a "drift" alarm simultaneously and continuously during the "ca...[Details]
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