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Use STC89C52, 74hc138 to drive the columns, 74hc595 to drive the rows , 8x8 dot matrix display problem. Want to display arrows, ....... Reward points : 30 Solved time: 2010-12-10 08:58 //= ... Th...[Details]
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At present, M1 (Mifare one) cards are widely used in the field of contactless user identity authentication applications, but the dedicated and undisclosed hardware logic algorithm it uses has been ill...[Details]
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As electronic products become more popular, it is not uncommon to see devices that can be powered by multiple power sources . For example, industrial handheld instruments or portable medical diagno...[Details]
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This paper proposes a perpetual calendar design based on the AT89C51 single-chip microcomputer. This solution uses the AT89C51 single-chip microcomputer as the core, and forms a hardware system with ...[Details]
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2020 may be the "most difficult year for employment" in history: affected by the epidemic, recruitment by companies has been postponed, offline recruitment has been changed to "cloud recruitment", ma...[Details]
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The materials used in the MSO1104Z oscilloscope are very solid. The entire PCB is filled with chips from major manufacturers such as Hynix, Freescale, ADI, TI, NS, Fairchild, etc.
Coilcraft power i...[Details]
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When it comes to LCR meters, many people tend to confuse them with multimeters. So what is the difference between the two? LCR meters, as the name implies, are special measuring tools used to measure...[Details]
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In the cold winter, especially in the north, magnetic flap level gauges usually need to be heated and kept warm in actual applications to prevent the liquid in the pipe from freezing and ensure the...[Details]
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When debugging the PWM function of the STM8 microcontroller, you often encounter a situation where after the PWM initialization settings are completed, the program is downloaded to the microcontrol...[Details]
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A single-chip microcomputer is a complete computer system integrated on a single chip. Although most of its functions are integrated on a small chip, it has most of the components required for a comp...[Details]
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Interleaving and deinterleaving are important parts of the combined channel error correction system. There are many ways to implement interleavers and deinterleavers. This paper uses the Quartu...[Details]
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On August 3, Musk said on Twitter that Tesla is developing the "last piece of the puzzle" of FSD - "vehicle control" and is expected to achieve fully autonomous driving by the end of this year. Mus...[Details]
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Single-key means that each key occupies a pin of a single-chip microcomputer. The characteristics of this connection method are that the circuit and program are very simple, but the disadvantage is th...[Details]
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On July 4, according to NHK and Nikkei, Honda Motor is in contact with Nissan Motor, hoping to jointly develop a "standardized" in-vehicle operating system and build the next generation of cars bas...[Details]
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For vehicle-mounted controllers, there are usually strict standards for CAN cycle fluctuations. The national standards are as follows. Based on the national standards, each OEM has slight diffe...[Details]
Analog electronics
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