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There are usually several ways to exchange information between the microcontroller CPU and external devices: unconditional transmission, query transmission and interrupt transmission. We use the inte...[Details]
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Earlier, we explained how to delay the time by software, thereby increasing the interval between the light on and off. The process is to let the CPU do other things, so as to achieve the delay effect....[Details]
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Introducing the steady-state continuous conduction mode analysis of Buck-Boost , the main purpose of this section is to give a derivation of the voltage conversion relationship in the steady...[Details]
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Title: Use ds1302 to make a precise electronic clock
Thoughts: When I watched the video, it was about the DS12CR887 chip. After all, the two are different, so I only watched how to read the timing, a...[Details]
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Thermal Expansion Valve
Thermostatic expansion valve controls the opening of the expansion valve by the superheat of the gaseous refrigerant at the outlet of the evaporator, so it is widely us...[Details]
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Abstract: SM9576 is a reliable monolithic infrared sensor. It has stable performance and high reliability, and can be widely used in infrared remote control and other fields. This article introd...[Details]
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First, you can try to press the grounding buttons "gnd" of the two channels in turn. At this time, the grounding status is displayed at the bottom of the screen, that is, the "⊥" sign appears. At thi...[Details]
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Brief description
Advertisement is a form of information service. The emergence of wireless vehicle-mounted LED screens has made it possible to deeply expand the advertising market and fully d...[Details]
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According to statistics and analysis by the China Association of Automobile Manufacturers, judging from the production and sales data for August 2019, both production and sales volumes did not reach ...[Details]
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On April 9, the 2021 New Generation Information and Communication Industry Academician Forum and the IAIC China Chip Application Innovation Design Competition Launch Ceremony were held in Shenzhen. C...[Details]
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Today, Huawei held a press conference with the theme of "New Life of All Things". At this press conference, the Huawei P50 series officially debuted, but there was a small regret. When introducing ...[Details]
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The development of Hf (high frequency operation special type)
fluorescent lamp
is based on the premise of reducing the input high frequency current. By making full use of the characteristics of...[Details]
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A signal generator, also known as a signal source, is an instrument used to generate an oscillating signal, providing the user with the required stable and reliable reference signal, and the char...[Details]
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When the electromagnetic flowmeter is used, A/D saturation occurs. This is usually caused by improper installation of the electromagnetic flowmeter or the presence of foreign matter in the medium in...[Details]
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A constant current source is a power supply device that can provide a constant current to the load. When the external power grid power source fluctuates and the impedance characteristics change, it...[Details]