1. MFRC522 is a highly integrated contactless (13.56MHz) card reader/writer chip. This transmitter module uses the principles of modulation and demodulation and fully integrates them into various cont...
Functional Description This project includes two buttons and a 4-digit digital tube display, which together realize a 24-second countdown of , and have the functions of pausing and re-counting. The sp...
[align=center][/align] I often see UP hosts recommending "White Snake" on Bilibili. I watched it today and thought it was really good. I rarely recommend movies to others, but today I recommend it. I ...
It is required to be able to output 1-5Hz square wave, triangle wave and sine wave signals. The frequency of the output signal can be adjusted from 1-5Hz, and the frequency of the current signal is di...
Writing C programs in a certain style can help the C compiler generate faster ARM code. Here are some key points related to performance: 640?wx_fmt=png&wxfrom=5&wx_lazy=1 1. Use signed and unsigned in...
I am a novice. I have read many posts recently and understand why BUCK needs floating ground driver. But it is strange that when simulating with Multisim and Saber, the simulation is successful withou...
On December 24, Xiaomi announced that Xiaomi 12Pro will adopt 120W fast charging, and it is the new self-developed 120W surging second charging technology. The Xiaomi 12 series will be officially unv...[Details]
The MAX8515 shunt regulator has a 0.6V feedback threshold and an initial accuracy of ±0.5%. It uses a tiny SC70 package and can easily form a cheap, small-size low-dropout linear regulator (LDO) using...[Details]
Let’s look at the actual operating results first Direct power supply effect Arduino drives LED light to flash at 1Hz circuit analysis: Let’s take a look at the green LED light parameters first:...[Details]
Audi A3 is the most "people-friendly" model among the domestically produced Audi products that will be launched soon. Many people will say that even if it is lowered in profile, it is still a "rich k...[Details]
1. Use Jlink to download the program, without performing Flash whole chip erasure. 2. Based on 1, The following situation occurs, When you download a larger program such as 30k for the ...[Details]
At the " Tesla Battery Day" held in September 2020 , Tesla launched the disruptive "4680 Battery". This type of battery is not only significantly larger than 18650 and 21700 batteries, but also ha...[Details]
A foreign research company released a report showing that the booming European energy storage market will attract many Asian battery manufacturers. Many industry insiders in Asia expect to take adv...[Details]
On November 7, Kioxia Japan said yesterday local time that its "Innovative Storage Manufacturing Technology Development" proposal has been adopted by the New Energy and Industrial Technology Develo...[Details]
According to a message released by Qingdao, it was learned from the Qingdao Development and Reform Commission that on January 10, the 2022 Qingdao municipal key projects were officially released and ...[Details]
Driven by the trend of smart home, more and more families are choosing smart products to exchange for a more convenient life experience. As the first line of security for the family, door locks are d...[Details]
Due to the needs of my classmates, I used the buzzer function of the 51 single-chip microcomputer to compose a song "My Motherland and I". The following is the complete code: #include reg52.h sbit...[Details]
This article introduces how to change the crystal frequency of the delay function (macro) in the Atmel Studio environment. In Atmel Studio, you can use the _delay_us(x) macro and _delay_ms(x...[Details]
Since the advent of CCD, after decades of development, the size has changed from more than 1 inch to 1/4 inch, the horizontal resolution of single-chip CCD color cameras has reached 480 lines, the ...[Details]
Recently, Gasgoo Automotive Research Institute released the installed capacity ranking of smart cockpit suppliers from January to June 2024, which comprehensively demonstrated the latest developmen...[Details]
As early as October, a vivo phone with model number V2154A passed the 3C certification. At that time, some people speculated that this device might be launched in the Chinese market under the name iQ...[Details]
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