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Some readers may have asked this question before: When the microcontroller PWM outputs, the low level of the pin is about 1.2v. Is this normal? This problem may involve the issue of pull-up and pul...[Details]
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When an ultrasonic beam propagates in a liquid, the flow of the liquid will cause a slight change in the propagation time, and the change in the propagation time is proportional to the flow rate of t...[Details]
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IGBT (Insulated Gate Bipolar Transistor) is a new type of power electronic device that uses MOS to control transistors. It has the characteristics of high voltage, large current, high frequency, a...[Details]
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Jiwei.com reported on February 9 that China Mobile Terminal Laboratory (hereinafter referred to as China Mobile) recently released an authoritative report, revealing to the outside world which compan...[Details]
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In recent years, many companies have launched high-speed data acquisition cards, and claim that they can be used in military radar signal analysis, ultrasonic signal analysis, digital broadca...[Details]
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SD card read and write subroutine
Hardware platform: atmega8L minimum system
hard SPI (the SD card initialization uses the IO port simulation timing, because it is found in the e...[Details]
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Battery manufacturing is increasingly becoming the biggest new challenge in the 21st century manufacturing industry. Although the global annual production of batteries has reached tens of billions...[Details]
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A cheap 100KHZ VF converter made of a single IC
Function of the circuit
In the past, when FF converters were mentioned, hybrid integrated components were often used. Howeve...[Details]
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Introduction At present, the sound quality of embedded systems is relatively poor due to the simple structure and low sampling rate of the recording and playback chips used, which is far from me...[Details]
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With the breakthrough development and rapid popularization of new generation information technologies such as 5G, big data, and artificial intelligence, automobiles have become technological products...[Details]
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According to reports on November 28, foreign media wccftech reported that Huawei is developing a competitor to Apple’s Vision Pro head display. This device is expected to be equipped with a desktop-l...[Details]
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First, let’s talk about the difference between the red and black test leads of a pointer multimeter and a digital multimeter and the connection to the internal battery; So, there are some differenc...[Details]
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Specific implementation functions The system consists of 51 single-chip microcomputer + ADC0809 module + LM386 power amplifier module + speaker + audio interface + light-emitting diode + power supply...[Details]
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At a recent internal meeting of Huawei, Huawei Consumer Business CEO Richard Yu revealed that Huawei's global smartphone shipments this year will be around 230 million units. If nothing unexpected ha...[Details]
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According to foreign media reports, recently, the British consumer rights organization "Which?" filed an antitrust lawsuit against Apple on behalf of approximately 40 million iCloud users, accusing...[Details]
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