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An oscilloscope is an electronic measuring instrument with a wide range of uses. It can transform invisible electrical signals into visible images, making it easier for people to study the changing p...[Details]
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The fully automatic transformer ratio tester uses a ratio bridge to measure the transformer ratio. The operation process is cumbersome and the measurement range is narrow. It is no longer suitable fo...[Details]
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1 Wireless LAN MAC layer protocol
Since IEEE introduced 802.11-1999 and 802.11b, wireless LAN technology has gradually matured. With the support of the special funds for SoC design methods an...[Details]
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The novel multi-functional electronic password lock integrates the functions of electronic door lock, anti-theft alarm, doorbell, etc. It also has many additional functions such as timer call, automa...[Details]
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If the writing on a piece of paper is not clear enough, there is usually a simple solution: put the text under a lamp. If I want to see the blurred outline on the paper, I need to hold the paper up...[Details]
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It is understood that a post-90s entrepreneur has once again obtained nearly 1 billion yuan in financing. This news has attracted widespread attention in the precision transmission industry.
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The premise of using electromagnetic flowmeter is that the measured liquid must be conductive and cannot be lower than the threshold value (i.e., the lower limit value). If the conductivity is lower ...[Details]
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I2C is a very common low-speed peripheral communication protocol in modern times. Compared with SPI or UART, its biggest advantage should be saving chip pins: theoretically, as long as the address is...[Details]
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Every change in mobile communication technology can bring opportunities to manufacturers in the value chain, and the arrival of 5G is no exception. The fifth-generation mobile communication technolog...[Details]
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According to Reuters, Huawei's rotating chairman Xu Zhijun said that in the future Huawei will build millimeter-wave radar based on 5G technology and develop lidar to solve the cost and performan...[Details]
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The I/O parallel port directly drives the LED display 1. The experimental task is shown in Figure 13. Use P0.0-P0.7 of the P0 port of the AT89S51 microcontroller to connect to the a-h segments of a c...[Details]
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NASA is studying the factors behind driver fatigue and how new automated technologies can both help and exacerbate the problem. According to the National Highway Traffic Safety Administration (NHTSA)...[Details]
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Introduction to Brushless DC Motors
Brushless DC motor, abbreviated as BLDC (Brushless Direct Current Motor) in English. The stator of the motor is a coil, or winding. The rotor is a permanent...[Details]
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Compilation environment: WinAVR-20060421 + AVR Studio 4.12.498 Service Pack 4
Basic idea: Each data written to EEPROM is backed up three times, and each backup data is verified by CRC16. As ...[Details]
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Liquid crystal
display
principle and structure?
Liquid crystal is a substance that is both like a liquid (can flow) and like a crystal (has
the
optical
proper...[Details]
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