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In order to initialize the SD card into SPI mode, we need to use three commands: CMD0, ACMD41, CMD55 (CMD55 should be sent before using ACMD commands, CMD55 plays a role in switching to ACMD commands)...[Details]
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(1) Measurement of DC current. When measuring DC current with a multimeter, first turn the switch to the appropriate range marked with "mA" or "μA". The maximum current range of a general multimeter...[Details]
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With the continuous improvement of microcontroller performance, embedded applications are becoming more and more widespread. However, large commercial embedded real-time systems on the market are expe...[Details]
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S-parameter measurements of time domain reflectometry and transmission
Among the three basic electrical characteristic test and measurement instruments in the frequency domain, time ...[Details]
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According to official news from Great Wall Motors, Great Wall's subsidiary Weishi Energy has recently overcome the difficulties in the fuel cell industry and achieved large-scale mass production of a...[Details]
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【Foreword】 Vision systems play a key role in future automotive design. In the past, it has been up to the driver to navigate and respond to hazards on the road, but modern vehicles are playing an...[Details]
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A Canadian battery research team led by Tesla battery expert Jeff Dahn is about to break through the technical barrier of energy density of new next-generation batteries. The team recently published ...[Details]
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The electronic password lock uses a digital logic circuit designed with voltage comparators, 555 monostable circuits, counters, JK triggers, UPS power supplies, etc. to achieve electronic control of ...[Details]
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Resonant LC sensor technology has been used for motion detection for several years, including flow metering and other low-speed rotation detection systems. In almost all cases, the common thread dr...[Details]
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Airborne high-frequency switching power supply products are specially used for input AC 400Hz occasions. They are specially designed to meet the special purposes of military radar, aerospace, ships...[Details]
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The explosion of demand in the new energy vehicle market has driven the power battery industry into a period of rapid growth. What really determines whether the power battery industry can maintain hi...[Details]
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A rectangular wave generator can be made by using the 2MHz passive quartz crystal of the AVR microcontroller and the 6-phase inverter 74HC04, plus a few 1/4W color ring resistors. The following fig...[Details]
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Researchers from Shantou University and Beijing Institute of Technology have developed a new type of nickel-based foam designed to alleviate the shuttling effect, volume expansion a...[Details]
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In the previous chapters, I created an ARM Resource Group and then created an Azure Storage Account under this ARM Resource Group. In this chapter, I will introduce how to create a virtual mach...[Details]
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OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
DSP and ARM Processors
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