I modified the USB virtual serial port driver of STM32 to receive data from the network card, and then sent the data to the host computer by calling the USB node write function of the USB virtual seri...
I am using IAR to write the UCOS system for atmega128. However, in the isr.r90 file, there is an assembly statement that I don't quite understand. I hope someone can help me. RSEG CODE:CODE:NOROOT(0) ...
[p=26, null, left][color=#333333][font=Arial][size=14px]The history of state machine programming is probably longer than that of traditional operating systems. The traditional large while loop mode ge...
Proximity sensors and existing solutions Proximity sensors play an important role in our lives and are widely used in smart home appliances, such as faucets that automatically sense water, air conditi...
After finishing the code, he stood up, turned off the computer, and used boiling water to make himself a bowl of steaming old-style pickled cabbage noodles. Chinese programmers prefer to draw the curt...
[i=s]This post was last edited by dql2016 on 2022-9-21 16:41[/i]esp-idf is an official SDK development package provided by Espressif, which is very powerful.
https://www.espressif.com.cn/zh-hans/produ...
System design is a complex process. It is not enough to just use ICs. There are many details to consider. This article uses a high-fidelity music playback system as an example to introduce how to s...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
AD8205 is
a single-supply high-performance differential
amplifier
launched by
Analog
Devices of the United States
. The typical single-supply voltage is 5V, and its common-mode volta...[Details]
1 Introduction
Building Automation System (BAS) is a distributed monitoring system (DCS) designed according to distributed information and control theory. It is the result of the mutual de...[Details]
1 Introduction
With the development of control, computer, communication, network technology, etc., a new control technology, namely fieldbus, has emerged in the field of industrial control...[Details]
In recent years, with the rapid development of the information industry, dot matrix LED display screens have been widely used in various advertising and information display systems such as the fina...[Details]
Today, the value of electronic components in cars accounts for 15-20% of the total vehicle. In the future, this proportion may be as high as 30-40% as more safety electronics, fuel consumption and ...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
In the "digital pressure measurement" experimental device of applied physics, the subject technical knowledge of analog circuits, digital circuits, sensors and single-chip microcomputers is used. In o...[Details]
With the continuous advancement of various technologies in the field of measurement and control, the baseband subsystem of general measurement and control equipment has entered the fourth generation o...[Details]
Abstract: Based on the ZigBee parking lot SMS car search system, the location of the vehicle in the parking lot is sent to the owner through SMS, which is convenient for the owner to quickly find ...[Details]
1 Overview
In the field of traditional lighting, the concepts and definitions of lamps and lamps are clear. Lamps and lamps have their own applicable product standards, supporting technical st...[Details]
People who often surf the Internet until late at night, their families always complain that turning on the big lights in the living room affects their rest, but some people don't have keyboard ligh...[Details]
Don’t just look at the power when choosing a power supply
We know that a power supply with a low rated power can hardly meet the power supply needs of the system, which may cause frequent free...[Details]
The principles to be followed are as follows:
(1) In terms of component layout, related components should be placed as close as possible. For example, clock generators, crystal oscillat...[Details]