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Data Types
1. Word length
The data stored in the storage unit (i.e. programming element) of S7-200 SMART PLC are all binary numbers. The length of the data is called word length, which ca...[Details]
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Wi-Fi is like oxygen to our connected world. It’s the most widely used wireless networking protocol today, carrying more than half of all Internet traffic. “Wi-Fi” is an all-encompassing term used to...[Details]
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With the commercialization of 5G last year, while mobile phone manufacturers were busy competing for territory with each other, they also turned their attention to the once popular VR, trying to make...[Details]
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I have been debugging the driver of AT91RM9200+pcf8563 under linux2.6.20 these two days. I would like to record my debugging process and experience. The pcf8563 driver is already available in the l...[Details]
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The USART of STM32F10x supports DMA mode and can generate an interrupt after DMA is completed. This is very helpful for application scenarios that need to receive or send large amounts of data.
F...[Details]
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Renesas Electronics Expands Medical and Industrial Environmental Sensing Product Lineup with New Thermopile-Based CO2 Sensor Detector
Single and dual channel detectors in TO-5 packag...[Details]
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// 0 sets the value in down_counter (beeping frequency)
//-------------------------------------------------------------
static int xiaoyang_beep_ioctl(struct inode *inode, struct f...[Details]
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A variable frequency speed regulator is a power electronic device used to control the speed and torque of a motor. Its main working principle is to convert AC power into DC power through a rectifie...[Details]
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Automotive electronic products refer to basic electronic products in intelligent connected vehicles, Internet of Vehicles and in-vehicle information services that have the functions of perception, ...[Details]
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1. During measurement, people should not touch the test sample.
2. If the test line is short-circuited or the high and low voltages are connected in reverse, the fuse will blow. After the fuse bl...[Details]
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Figure 1 PWM logic circuit and output circuit
In Figure 1, V8 is the oscillation pulse generated by the oscillation circuit, and its duty cycle is 50%. The pulse determines the operating fr...[Details]
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For any software security program to be truly effective, it is important to determine the appropriate activities that need to be focused on and who should be responsible for performing these activiti...[Details]
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From September 19 to 22, the 2019 Tianyi Smart Ecosystem Expo was held in Guangzhou. This is the industry event jointly held by China Telecom and Qualcomm for the eleventh consecutive year. The theme...[Details]
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multimeter A multimeter, also known as a multimeter, three-meter, or multiplexer, is a multifunctional, multi-range measuring instrument. Generally, a multimeter can measure DC current, DC voltage, A...[Details]
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The paper introduces
the
power
line carrier (PLC) technology and its development history, and compares the traditional narrowband single-carrier FSK modulation scheme with two new OFDM-based...[Details]
Linux and Android
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