I bought a 8.86 LED desk lamp from a forum and thought it was rechargeable. When I received it, I realized it was a USB direct plug. I took it apart and installed a lithium battery for charging.The on...
The big topic of memory
key: You must have a logical diagram of memory in your mind.
What is the procedure?
Program = Code + Data
The code is placed in the code segment in Flash, and the variable data...
STM32 independent watchdog ,
Driven by a dedicated low-speed clock (LSI), it can still be effective even if the main clock fails, so this watchdog can work under requirements unrelated to the main clo...
I had the urge to do a series of topics on sound visualization. This topic is a bit difficult and covers a wide range of areas. The related FFT and FHT algorithms are also quite complicated. However, ...
Recently, an Amazon Alexa user said that when he asked the voice assistant Alexa about the heart cycle, he got the following answer: "Heartbeat is the worst process of the human body. People are livi...[Details]
SAIC-GM Chevrolet brand announced that the new generation of intelligent driving fun SUV Trax will be equipped with Chevrolet's most powerful smart connectivity technology in history - the new gene...[Details]
Hyundai Motor Group recently said it plans to invest 41 trillion won (about 35 billion U.S. dollars) in mobile travel technology and strategic investments by 2025, indicating that South Korea's large...[Details]
Wireless sensor networks are "intelligent" measurement and control networks composed of a large number of inexpensive micro sensor nodes with communication, sensing and computing capabilities depl...[Details]
describe
The LTC®3789
is a high performance, buck-boost switching regulator controller that can operate with
input
voltages above, below or equal to the output voltage. Using a con...[Details]
On October 25, Apple announced that it had acquired New Zealand wireless charging company PowerbyProxi. However, the amount spent on the acquisition was not disclosed. Let's follow the mobile phone...[Details]
Defibrillators in the workplace
These defibrillators actually provide voice and graphic instructions to enable a user who has never used such a machine to correctly use the monitor and lead s...[Details]
On the last day of June, HarmonyOS officially announced a new batch of HarmonyOS upgrade lists through Weibo, with a total of 24 models launched for public beta testing. The complete model includes: ...[Details]
According to foreign media reports, Japanese tire manufacturer Sumitomo Rubber Industries, Ltd. has collaborated with Professor Hiroshi Tani of Kansai University in Japan to develop a new technology ...[Details]
May 25, 2023, Shanghai, China - Smartway (Shanghai) Electronic Technology Co., Ltd. has launched two new high frame rate industrial area array CMOS image sensors - SC235HGS and SC135HGS, 2MP and 1.3M...[Details]
The composition of the ground resistance tester The ground resistance tester uses a manual generator. The rotating current inverter and rectifier are the two main parts of the ground resistance t...[Details]
I. Introduction Some time ago, I saw a document "Design of Three-wire PT100 Thermal Resistor Temperature Measurement Circuit", author: Liu Wei and Li Jing (the relevant article is attached in the att...[Details]
There are usually several methods for measuring ground resistance: two-wire method, three-wire method, four-wire method, single clamp method and double clamp method. Each method has its own character...[Details]
Abstract: As the world energy crisis becomes increasingly serious, the use of solar energy has become a major way to solve the energy problem. In this context, the development of intelligent solar...[Details]
Phase shifters are widely used in various circuits, but due to
the deviation in
the amplifier
and the tolerance of the capacitor, it is usually difficult to achieve the precise phase shift requir...[Details]
DIY/Open Source Hardware
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