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Common faults of LED display and simple solutions:
Fault phenomenon
Cause
Fault analysis and processing
One unit board is not lit
1. No +5v
2. Data...[Details]
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The driving circuit composed of 555 time base integrated circuit requires only a few additional components. The frequency is adjusted to the resonant frequency of the transducer, and the duty cycle ...[Details]
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I have been searching Baidu for a long time but still can't find out how to connect the serial port of 12864 with fonts. Later, I consulted the product description of 12864 and finally figured it out...[Details]
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Make a hole in an old record according to the position of the motor seat, and the light baffle used for positioning should be determined according to the position of the photosensitive component on...[Details]
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A highly anticipated event, Chery Global Innovation Conference Summit Forum, kicked off in Wuhu. More than 20 academicians from the two academies, overseas academicians and top experts from around ...[Details]
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This circuit is very flexible and convenient to use. It does not need to distinguish the phase sequence. It can capture the synchronous signal of T1, the synchronous signal of T1, T3, and T5, or six ...[Details]
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Nanochip micro driver chip NSD1624 effectively solves the problem of negative voltage and high dv/dt on SW pin in high voltage and high frequency systems
June 22, 2022 - NSD1624 is t...[Details]
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According to Huawei Consumer Business CEO Yu Chengdong, the Huawei P40 series will be unveiled in March this year. On January 6, the whistleblower @BenGeskin released a rendering of the Huawe...[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]
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The era of intelligent driving cannot do without "regulation and control", but for users, "regulation and control" may be a term that is both unfamiliar and has a strong sense of technology.
I...[Details]
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In daily work, logic analyzers and oscilloscopes are indispensable tools for MCU engineers. Sometimes when there are bugs in the program, these tools are needed to view the waveform, so as to locate ...[Details]
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Select a wire with sufficient safe current carrying capacity to connect to a 220v power supply with sufficient capacity, select each function switch to the required position, rotate the output adjust...[Details]
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Recently I need to use keil4 to set breakpoints and test the delay time of the microcontroller, and I found that double-clicking the line where the program is located has no response. solution: 1...[Details]
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The role played by new technologies such as AI, big data, and 5G in products is changing, reshaping people's life behavior patterns. According to public data, Yikang Intelligent invested more than ...[Details]
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The main functions of a handheld computer (HPC) should include: computing, data storage, input and output, data communication and system expansion. The organic combination of software and hardware is...[Details]