I have been very busy recently, which has delayed the evaluation work. Thanks to nmg for helping me apply for an extension.
This review is about the smart speaker routine provided by Boliu.
There is n...
Thanks again to EEWorld and Digi-Key for hosting the contest.
I waited for many days to get this product, and it is said that it involves export-controlled goods. Fortunately, I have received it.
The ...
Hello everyone!
This circuit is the driving circuit of the lamp. What are the functions of the three parts mentioned? What is the function of the GD of the MOS and the 2.4V voltage regulator? Thank yo...
I would like to thank EEWORLD and Digi-Key for creating this event opportunity. I am honored to participate in the Electronic Innovation Design Competition organized by EEWORLD and Digi-Key. I am also...
“Hi, ChatGPT, what gift should I give to an engineer on Valentine’s Day?”
ChatGPT: “You can give them digital or instrument products that engineers like. Such as fast chargers, headphones, digital sto...
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
Fruit planting is an important part of China's agricultural development, and fruit tree pest control operations are becoming more and more important. At present, the overall level of pesticide applica...[Details]
1 Introduction to LED
With the development of science and technology, people have higher and higher requirements on automobile light sources. LED (Light Emitting Diode) has gradually attracted...[Details]
Nowadays, more and more people have digital cameras. The convenience and speed of digital cameras have gradually replaced film cameras and become the main tool for people's daily photography. The n...[Details]
Traditionally, when using PLC to control stepper motors, a dedicated stepper motor control intelligent module is usually added to the PLC, and then connected to the drive power supply to realize th...[Details]
As a type of iron battery, lithium iron phosphate battery (hereinafter referred to as lithium iron battery) has always been widely concerned by industry friends (some people say that lithium iron b...[Details]
1 Introduction
In order to cope with the energy crisis and slow down global warming, many countries have begun to pay attention to energy conservation and emission reduction and the de...[Details]
There are two main ways to measure temperature: one is the traditional contact measurement, and the other is
non-contact measurement represented by
infrared temperature measurement
. Tradit...[Details]
LED (Light-emitting diode) is widely used in indication, display and other fields due to its advantages such as long life and low energy consumption. Reliability, stability and high light output ar...[Details]
illustrate]
This method has
the characteristics of small
ROM
occupation
and fast operation speed, with a range of
2000
ßà
2099
,
a total of
...[Details]
Beijing time, July 2 morning news, Google last week released its own brand tablet computer Nexus 7, equipped with its latest operating system Android 4.1 "Jelly Bean". But market research firm Ovum sa...[Details]
1. Self-test of lithium battery capacity
The nominal capacity of the CECT9898 OEM mobile phone lithium battery is 3800mAh, and its battery volume is comparable to the 1500mAh battery of ot...[Details]
1. Introduction
With the development of electromechanical technology, electronic technology has also penetrated into the automobile braking system, and a new technology called "electronic brak...[Details]
Electrolyte is one of the core materials that constitute the capacity of lithium secondary batteries and lithium primary batteries that are the energy sources of mobile phones, notebooks, video rec...[Details]
1 Introduction
Fieldbus technology is one of the hot spots in the development of automation today, and is an important technology for realizing industrial control networking. Many automation c...[Details]
PCB Design
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