This is a reposted article, which discusses the various parts of the 485 bus in detail. Some netizens have raised doubts about the reference ground interconnection of the 485 bus, so I will post a rel...
I use STM32 to write a matrix keyboard program. I have posted several posts before, but I have never finished it.Circuit Diagram:Code:
/****************************************************************...
Hardware Connection:
LCD1602 is a common LCD display screen, which displays 16 characters × 2 lines, that is, it can only display 32 characters at most. The 1602 I have is driven by 5V . After bold te...
[i=s]This post was last edited by qwqwqw2088 on 2020-11-25 08:09[/i]In a battery-powered system, power consumption requirements, power supply voltage monitoring, and system reset circuit reliability p...
Improvements in 5G radio signal processing could save $193 million per U.S. fixed wireless access mmWave O-RAN networkMobile Experts study commissioned by AccelerComm shows enhanced LDPC IP can reduce...
China Energy Storage Network News:
On February 22, China Southern Power Grid held the first meeting of the Power Market Construction Leading Group in 2022 to thoroughly implement the decisi...[Details]
Advantech launches OSM Size-L core board ROM-2860
Equipped with Qualcomm QCS6490 to enable edge AI applications
Advantech, a global AIoT manufacturer, grandly la...[Details]
With approximately 200 companies participating in the IMS2020 virtual exhibition, Microwave Journal has collected as much information as possible from these companies to summarize the features and pr...[Details]
China Energy Storage Network News:
On December 24, at the site of the 110 kV power transmission and transformation project in Shuanghu County, Nagqu City, Tibet, as the construction workers t...[Details]
The use of photocouplers in audio amplifier circuits not only plays a role in signal isolation and prevents inter-stage interference, but also can amplify audio signals. Photocouplers can be equivalen...[Details]
principle: There is something wrong with his diagram. Don’t be misled. For example, if I display an arrow and follow this schematic diagram, then the straight line in the middle is 0xff, indicating...[Details]
The role of code is to tell the microcontroller that the data I define should be placed in ROM (program storage area), and it cannot be changed after being written. In fact, it is equivalent to the ad...[Details]
1. Comparison of high-frequency crystal oscillator measurements Let's first feel the difference in measurement results when the probe ground wire is long or short. Take the crystal oscillator signal ...[Details]
Digital video camera is DV, which is the abbreviation of Digital Video, which means "digital video" in Chinese. It is a digital video format jointly developed by many well-known home appliance gia...[Details]
introduction
Power line communication has many advantages: long communication distance, not affected by terrain and topography, small investment, short construction period, simple equipmen...[Details]
Shanghai, China, December 13, 2021 - Recently, ViewSonic announced the launch of the high-brightness WXGA LED commercial projector LS500WH. The new LS500WH uses the second-generation LED technology, ...[Details]
OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
The arrangement of LEDs
and the specifications of the LED light source determine the basic
driver
requirements.
The main function of an LED driver
is to limit the current f...[Details]
Once a powerful force in the field of passenger cars, are the "invincible" ternary batteries really no longer so popular? Things are changing, and now ternary batteries are "turning from offense to d...[Details]
The auto-coupling step-down starting control cabinet is a commonly used motor starting device. It uses an autotransformer to reduce the starting voltage of the motor, thereby reducing the starting ...[Details]