What does the outer diameter of the MULTI-LAYER color ring mean? The blue color ring is the drill hole, and the drill hole size is the inner diameter. The gray color ring is the outer diameter. What d...
2019 is almost halfway through, and tomorrow will be the time for many students to become famous. Looking back on my senior year of high school, I was both excited and nervous. I was excited because I...
Longmen Grottoes are located in the Yique Gorge, 6 kilometers south of Luoyang City. Because it is located in the south of the capital, the ancient emperors called themselves "the true dragon emperor"...
I browsed around on Taobao but couldn't find it. The input is a 5V USB plug, and the output is 2 wires (or terminals) of 1.5V. It's not hard to make it yourself, but I don't want to work hard....
1. Absolute value function(1) _abs()C code: int _abs(int src)Assembly: ABSfunction: Calculate the absolute value of 32-bit data(2) _labs()C code: int _labs(long src)Assembly: ABSfunction: Calculate th...
With the rapid development of artificial intelligence and the automotive industry, autonomous driving technology has gradually become the focus of the industry. According to relevant institutions, th...[Details]
Characteristics of turn-off thyristor After ordinary unidirectional thyristors are triggered by control electrode signals, they can remain on even when the signal is removed. To turn them off, the po...[Details]
On April 23, Zhongying Electronics released its first quarter report for 2020, stating that during the reporting period, the company achieved sales revenue of 201.66 million yuan, a year-on-year incr...[Details]
Domestic new energy vehicle models have a leading advantage in terms of intelligence level.
Nowadays, new energy vehicles have become the new favorite in the automotive industry for thei...[Details]
1 Device Characteristics The DS12C887 real-time clock chip is rich in functions and can be used to directly replace the clock calendar chip DS12887 on the IBM PC. At the same time, its pins are a...[Details]
Earlier this week, there were reports that Microsoft was working on a Surface laptop based on the Qualcomm Snapdragon 8cx platform; and the latest news indicates that the 2019 Surface is expected to ...[Details]
Mouser Electronics, an electronic component distributor that focuses on introducing new products and providing a large inventory, announced that it will work with ADI to hold an online seminar with t...[Details]
The format of C51 interrupt function is: void FuncIr(void) interrupt x
Both interrupt and using are keywords of C51. The C51 interrupt process is implemented by using the interrupt keyword and the i...[Details]
On October 19, at the 2021 Yunqi Conference, Alibaba's semiconductor company Pingtou Ge released its self-developed cloud chip Yitian 710. This chip is the industry's most powerful ARM server chip, w...[Details]
Countdown timers are very useful in life. If you make your own with a single-chip microcomputer, not only is the circuit simple, but the functions can be designed according to your needs. There are m...[Details]
The power supply circuit of the TDA2030A amplifier board is shown in the figure below. In order to ensure the sound quality of the amplifier board, the output power of the power transformer must not ...[Details]
There are three main dimming methods at present, namely: analog dimming, PWM dimming and thyristor dimming. When using thyristor dimming to dim LED replacement lamps, the existing dimmer circuit ca...[Details]
1 Introduction
The AT89C2051 single-chip microcomputer is used to realize the large-capacity decoding function of PT2262. This design can solve the problem that one PT2272 can only decode 15 states...[Details]
Apple's MagSafe is an accessory and charging system designed for the iPhone 12, and one user discovered that the magnets attract more than just wallets. In fact, the iPhone itself is full of su...[Details]
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