[i=s]This post was last edited by lb8820265 on 2020-11-29 14:38[/i]First the video:The Bluetooth balancing toy car has the following functions: mobile phone APP virtual remote sensing control mode, au...
I made a protector, using a 430 single-chip microcomputer and a SIM300 module, and used mobile phone text messages to control on-site equipment. The problem now is that after adding the reply function...
PCF8574 is a CMOS circuit with I2C bus launched by PHILIPS. It can realize remote I/O port expansion for most MCUs. The device includes an 8-bit quasi-bidirectional port and an I2C bus interface. PCF8...
[size=4]First download[/size][color=#000000]halcogen software from TI's official website. The download address is as follows[color=#800080]http://www.ti.com.cn/tool/cn/halcogen[/color] [color=#000000]...
I have already realized zero copy of single-port network card, that is, the network card DMAs the data packet into the ring. My question now is whether the data packets received by several ports of mu...
With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[Details]
Since AC mains power may experience power outages, voltage sags and surges, continuous undervoltage and overvoltage, and frequency fluctuations during supply, these factors will affect the continuous ...[Details]
The serial interface real-time clock chip DS1302 launched by Dallas Company in the United States can trickle charge the backup battery of the clock chip. Due to the main features of the chip such a...[Details]
introduction
At present, measuring instruments are developing towards networking, and each individual embedded instrument will become a node on the Internet. This system realizes the network...[Details]
Analysis of the three core aspects of digital TV transmission standards
According to the differences in regionality, transmission method and modulation method, the transmission method needs to...[Details]
At present, with the diversification of portable products and the almost harsh requirements for audio and video parts, the power consumption requirements of the whole machine have been raised to a ...[Details]
1. Tips for charging UPS for the first time
After purchasing a new UPS, plug the UPS into the 220V mains power grid and charge it for at least 12 hours to ensure that the battery is fully char...[Details]
It should be understood as follows: DC-DC means direct current to direct current (conversion of different DC power values). Anything that meets this definition can be called a DC-DC converter, incl...[Details]
There are many types and styles of digital voltmeters in design and development. Traditional digital voltmeters have their own characteristics. They are suitable for manual measurement on site. Tra...[Details]
1. Introduction
Modern modular machine tools are equipped with a large number of electronic devices to meet the requirements of processing accuracy, processing speed, etc. If the conventional ...[Details]
In some motion control systems with simple control or low cost requirements, stepper motors are often used as actuators. The biggest advantage of stepper motors in such applications is that they ca...[Details]
For a long time, my country has implemented "community-style collective heating" for hot water heating, and settled accounts based on the heating area, regardless of whether the user uses heat. Thi...[Details]
0 Introduction
With the development of virtual instrument technology, new measurement and control methods that use "virtual instruments" to replace traditional instruments are replacing trad...[Details]
As we all know, the manufacturing of modern automobiles is divided into four major processes: stamping, welding, painting and assembly, and the powertrain constitutes five inseparable production pr...[Details]
0 Introduction
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The ways to reduce costs are: ① Use the Bluetooth data transmission...[Details]