1. Experimental tasks As shown in the previous test schematic, switch SP1 is connected to the P3.7/RD pin, and four LEDs are connected to the P1 port of the AT89S51 microcontroller. When the power is ...
【Today · Frost Descent】--- "Frost Descent is one of the 24 solar terms. It means that the weather is getting colder and the first frost appears. It is the last solar term in autumn and also means that...
The design of electronic ballasts for energy-saving lamps is a major difficulty in the lighting industry. Many manufacturers produce products of poor quality, which causes users to "save energy but no...
In the process of power supply research and development, we will always encounter problems of one kind or another. Here are some experts who have been researching and developing power supply problems ...
Now I need to select 2G/GPS/Bluetooth or Zigbee IoT communication modules to make products and want to connect to Alibaba Cloud.Some people say that the module of a certain Zhou is unstable. I wonder ...
According to Jiwei.com, anyone who is familiar with the mobile phone optical lens industry should know that Largan has been the industry leader for more than 10 years and has not been surpassed so fa...[Details]
1 Voltage regulator (regulator)
The 7.42V reference voltage output from the VREF pin is used as the reference for the control logic voltage. Vcc is usually 12.7V. Before outputting VREF, Vcc must be...[Details]
This circuit is composed of encoder VD5026 and laser flashlight, among which A1~A11 are address lines, whose logic states can be 1, 0 or suspended. Different combinations of address lines can obtain ...[Details]
Since variable frequency motors have incomparable advantages in speed regulation and control, the degree of mechanical automation and production efficiency have been greatly improved; EPS power sup...[Details]
W79L658A is a 4T 8051 microcontroller series. W79L658A provides an operating voltage range of 3.0V to 4.5V, built-in ADC, supports in-system programming (ISP) and in-circuit emulation (JTAG), and is...[Details]
On April 7, Hangjin Technology stated on the investor interaction platform that the price increase of imported chips and core raw materials has a positive impact on the company. The company independ...[Details]
Pfeiffer Vacuum expands OktaLine ATEX range of explosion-proof Roots pumps
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ATEX explosion-proof certified by the European Union, suitable for rough vacuum and medium vacuum a...[Details]
On June 10, according to SamMobile, Samsung Galaxy Fold 2 does not support S Pen. SamMobile claims the Samsung Galaxy Fold 2 will use ultra-thin flexible glass (UTG), which is not strong eno...[Details]
Target This event is a continuation of the November Student Zone; this time we will introduce current mirrors, whose output is not affected by changes in input current. Therefore, it will be helpf...[Details]
How to improve EMC & EMI of electronic products
When developing electronic products with processors, how to improve anti-interference ability and electromagnetic compatibility?
1. The fol...[Details]
0 Introduction
There are two forms of catalytic cracking regeneration process: complete regeneration and incomplete regeneration. For the incomplete regeneration process, the flue gas cont...[Details]
The appearance and pin functions of the LCL331 multi-bit display combination device are shown in the figure.
Each display assembly of LCL331 includes: decade counter - register - seven-segment...[Details]
introduction
In many industrial control and data acquisition systems, in order to achieve miniaturization and portability of the system, a master-slave structure in the form of upper ...[Details]
The core features of LiDAR in autonomous driving can be summarized as three-dimensional environmental perception, high resolution, and anti-interference ability. In terms of three-dimensional envir...[Details]
MCU
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