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The perimeter anti-intrusion alarm system is the most important core part in the construction of community security. From the perspective of the characteristics of the security system setting, th...[Details]
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On December 18, 2021, the 2021 RT-Thread Developer Conference hosted by Ruiside Technology came to a splendid conclusion in Shenzhen. As the most anticipated annual technology feast in the AIOT indus...[Details]
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The steps to use digital testing are as follows: 1. To determine the polarity, first adjust the multimeter to 100 or 1k ohm. Assume that one pole is the positive pole, connect the black test lead to ...[Details]
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Refrigerators are one of the essential household appliances. In the home appliance market, refrigerator sellers have done a lot of publicity campaigns such as "energy saving and freshness preservat...[Details]
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Because I like tube amplifiers, I have saved a lot of tubes over the years. I wanted to buy a tube tester. After trying many, I found that most of the testers were seriously aged due to their age. ...[Details]
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Circuit Diagram:
The program code is as follows:
#include reg51.h
char led_a ={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07};
char led_b ={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
...[Details]
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Fingerprint recognition can be said to be the beginning of the development of biometric technology in smartphones. Even though new technologies such as iris recognition and face recognition have e...[Details]
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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 ...[Details]
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Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) is composed of a metal-oxide-semiconductor (MOS) diode and two closely adjacent p-n junctions. Since its first demonstration in 1960, MOSF...[Details]
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With the ability to travel ultra-long distances underwater and perform complex operations, this "underwater Transformer" represents the pinnacle of robotics technology. A yellow underwater boat gli...[Details]
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On October 9, Dalian City issued the "Dalian New Energy Vehicle Charging Infrastructure Construction Reward and Subsidy Fund Management Measures", which provides a one-time subsidy of no more than ...[Details]
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Today I will share one with you. As the functions of chips become increasingly powerful, the integration of chips is getting higher and higher, and the capabilities of many previously separate ci...[Details]
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Teststand User Manager object-oriented inheritance characteristics
The user permissions in Users in User Manager are composed of two parts: inherited group characteristics and their own character...[Details]
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It is not uncommon to want to measure the Q factor of a resonator. It may be necessary to determine its suitability for use in coupled resonant filters, or to evaluate the performance of RFID tags. T...[Details]
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Recently, the first mass production line of all-solid-state lithium batteries in China was officially put into production. This production line was invested and built by Beijing Pure Lithium New Energ...[Details]