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The digital multimeter can be used to measure DC and AC voltage, DC and AC current, resistance, capacitance, inductance, frequency, battery, diode, transistor hFE and continuity test, and has an autom...[Details]
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Recently, two vivo smartphones with model numbers V2162A and V2163A were certified by the 3C authority. Reports suggest that these models will debut in the Chinese market with the names vivo S12 and ...[Details]
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Circuit Principle: The hysteresis oscillator composed of Q1, Q2 and U1 can be used to stabilize the lighting of the lamp. In operation, the full-wave bridge D3 can be used in both the AC line, or ...[Details]
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PLC understands the interrupt function in this way. When understanding the interrupt, we must first understand the PLC operation cycle or scan cycle. It is necessary to talk about the process of PL...[Details]
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The microcontroller source program is as follows: #include "reg52.h" #include "oled.h" #include "bmp.h" #include "ds18b20.h" #include stdio.h #include "ds1302.h" sbit key_s2 = P2^0; //Independ...[Details]
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According to CCTV News, the China Academy of Information and Communications Technology of the Ministry of Industry and Information Technology recently released the 2021 China Lithium Battery Industry...[Details]
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1 Digital potentiometer adjustment
This is a method of using a digital potentiometer to change a fixed negative bias voltage into an adjustable negative bias voltage to adjust the contrast. The...[Details]
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According to foreign media reports, TruSpin Nanomaterial Innovation announced that after third-party testing, the company's model battery showed good performance. These tests were conducted by Spectr...[Details]
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1. The difference between serial port and parallel
port Serial interface, referred to as serial port, is also called COM interface, which is an expansion interface using serial communication protocol...[Details]
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As of August 2022, Xpeng Motors has a total of 1,000 self-operated charging stations online, including 799 self-operated supercharging stations and 201 self-operated destination stations, covering al...[Details]
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A security researcher has discovered that Apple's AirTags can be hacked and their software modified, with an exploration of the microcontroller allowing elements to be reprogrammed to change specific...[Details]
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Samsung Electronics officially launched the 108-megapixel sensor ISOCELL Bright HMX, the industry's first mobile image sensor with more than 100 million pixels. Samsung said the sensor is the result ...[Details]
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According to phonearena and donanimhaber, Pine64's Linux-based smartphone PinePhone was shipped to developers as early as last year. According to reports, the phone is now officially available ...[Details]
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On July 25, the opening ceremony of Ruineng Wen Semiconductor and Ruineng Jinshan Module Factory was held grandly in the Shanghai Bay Area High-tech Zone, marking the official operation of Ruineng...[Details]
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Use rpm -qa | grep nfs to check whether the tftp server is installed
yum install nfs
1. Server installation:
1.setup
2.System Services
3. Check *nfs
4.service nfs res...[Details]
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