How to choose a better bitcoin miner

As the price of bitcoin continues to rise, more and more investors are chasing after the profits of bitcoin mining machine, and miners have entered the mine. However, many miners have little knowledge of the bitcoin mining machine. The performance of bitcoin mining machine is directly related to the mining income. Now there are many […]

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Three kinds of sine wave generator circuit diagram sharing

Circuit diagram of sine wave generator (1) The circuit of sine wave generator is shown in the figure. IC1 and RP1, R6 and C3 constitute an unsteadiness multivibrator, f = 1.44 / (RP1 + 2r6) C3. The oscillation frequency of parameters in the diagram is 20Hz ~ 20kHz, which can be adjusted by RP1.    […]

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Sales fell sharply in February, 5g mobile phones are busy saving the market

The mobile phone industry has been impacted by the outbreak. On March 10, the domestic mobile phone market data released by the China Academy of communications and communications for February showed that domestic mobile phone shipments fell sharply by 56% in February, and some mobile phone manufacturers also lowered their shipping expectations for this year. […]

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The application prospect of space-based Internet of things is very broad

Yesterday (December 12), kuaizhou-1a carrier rocket launched two satellites of “xingyun-2” 01 / 02 into the predetermined orbit by “one arrow and two satellites” at Jiuquan Satellite Launch Center. This is the first time that the kuaizhou rocket and Xingyun satellite have been combined, and it is also China’s first satellite Internet of things project. […]

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Design of remote temperature monitoring system based on S3C44B0 microprocessor and RTL8019AS chip

introduction Today’s society has entered the post PC era with the rapid development of digital information technology and network technology. Embedded devices have penetrated into various fields and gradually develop towards the direction of networking. For example, video monitoring, webcam, remote control, information appliances and so on are inseparable from the combination of embedded devices […]

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Analysis of domestic value added telecom business license in March 2020

The information and Communications Institute issued the analysis report on the licensing of domestic value-added telecom services in March 2020. According to the report, by the end of March 2020, there were 81071 value-added telecom business license enterprises nationwide, an increase of 1.27% over the previous month. At present, the regional development of value-added telecom […]

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Analysis of smart grid investment in the Middle East and North Africa

According to the 2020 energy and utility market outlook report released by information markets, a middle east energy consulting agency, in the next seven years, the investment in smart grid in MENA is expected to reach 17.6 billion US dollars. The increase in investment in renewable energy in the region is the main factor to […]

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