I succeeded in using external interrupt PC2, but PC3 failed to use external interrupt function. I tried the external input reading function of PC3 and it worked. Does PC3 have any special configuratio...
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Score: 0When you want to use MCO, you cannot enable Timer 1 and Serial Port 1.No way, the cost of...
The VCC of the microcontroller (STC89C52) is 5V, and the VCC of the GPS (MTK M89) is 4.3V. RXD is connected to TXD, and TXD is connected to RXD. When I use a multimeter to measure the serial port of t...
With the global popularization and advancement of cellular wireless communication technologies represented by 4G and 5G, and the vigorous development of communication technologies in various professio...
Does anyone have the schematic diagram of this power supply? Or something similar is also OK. I want to modify it into a power supply with adjustable current and voltage....
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
A single-chip microcomputer is also called a single-chip microcontroller. It is not a chip that completes a certain logical function, but a computer system integrated into one chip. In general, a c...[Details]
As cellular phones become more advanced, the power consumption of the system during operation and the power consumption during standby are also increasing. Therefore, the power management design of...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
In industry, voltage 0…5 (10) V or current 0 (4)…20 mA is usually used as a method for analog signal transmission, which is also a method often used by programmable controllers. So what are the dif...[Details]
With the popularity of digital appliances, rechargeable batteries can be seen everywhere in people's daily lives and have become one of the indispensable daily necessities.
This article gives ...[Details]
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my country's rapid economic growth is mainly due to the development of manufacturing and the acceleration of urbanization. However, urbanization cannot be achieved at the expense ...[Details]
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Belt drive is a common transmission device used in industrial production. Its commonly used speed detection device is a photoelectric encoder installed at the rotating end of th...[Details]
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PROFIBUS is an open digital communication system with a wide range of applications, which has been included in the international standards IEC 61158 and IEC 61784. Since the gen...[Details]
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The Global Navigation and Positioning System (GPS) has been widely used in vehicle positioning because it can provide all-weather, continuous, and real-time high-precision posit...[Details]
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In today's scientific research and engineering, CCD is increasingly widely used, but its driving pulse and signal acquisition requirements are high, and generally requires a relat...[Details]
Most of the temperature sensors on cars are negative temperature coefficient thermistors, such as the engine's intake temperature sensor, coolant temperature sensor, oil temperature sensor, automat...[Details]
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Changan Automobile Manufacturing Plant could produce 6 types of cars, with an annual output of about 80,000 vehicles. Its assembly line was manufactured in the late 1980s us...[Details]