The "first bid in the country" for tax -control cash registers was issued recently in Guangdong Province, and five companies won the bid. On February 15, the Guangdong Provincial Government Procureme...
Development board: EasyArm1138 development board produced by ZLG (I bought it for 100 RMB before , but now I have time to learn ARM )
Development software: IAR Embedded Workbench 5.0 Kickstart
Learnin...
Recently, I used DS12887 to make a Nixie tube electronic clock (52+12887+74HC595), and used protues to simulate it. Now I can write data, and the small box next to 12887 can read the written data. The...
Using the STM USB firmware library to implement multi-endpoint HID transmission, Mouse or Keypad alone, there is no problem!The bus hangs when implementing a dual-interface device!!!!!/* USB Configura...
[i=s] This post was last edited by dontium on 2015-1-23 11:39 [/i] Can any great master give me a tutorial on how to use WEBENCH Designer? I want to design a power supply, but I don't know how to use ...
introduction
Oxygen is an important substance for human metabolism. Brain tissue has a high metabolic rate and consumes about 20% of the total oxygen in the body. In the clinical rescue and ...[Details]
At present, the global medical electronics industry is gradually showing attractive development prospects, and the speed of product replacement is constantly increasing. At the same time, due to the p...[Details]
This article introduces a miniature home electrocardiograph. The instrument has powerful functions: display monitoring, storage, playback, printing, record management, power alarm, telephone or Intern...[Details]
0 Introduction
SAA7111 is a programmable video processor produced by Philips. The chip integrates A/D and decoding functions. It has phase lock, automatic clamp, automatic gain control, cl...[Details]
Lithium-ion batteries have a high energy-to-weight and energy-to-volume ratio, no memory effect, can be recharged many times, have a long service life, and are becoming increasingly cheaper. A good...[Details]
introduction
The fall detector is suitable for elderly people and children with poor self-care and self-protection abilities. It senses changes in the body posture of the individual wearing th...[Details]
MOSFETs are widely used as power switching elements in regulators and motor controllers. They are available as discrete devices or integrated into ICs in various H-bridge configurations.
A hig...[Details]
1 Introduction
Generally, when transmitting information over short distances through electrical signals, baseband signals can be directly transmitted. However, over long distances, baseban...[Details]
1 Introduction
Reliability research originated from weapon systems. After nearly half a century of development, it has become an engineering discipline that covers all disciplines and industri...[Details]
Introduction: Generally speaking, the power supplies used to drive today's high-resolution analog/digital converters have AC or DC loads of hundreds of ohms or more. Therefore, an operational ampli...[Details]
With the improvement of people's requirements for vehicle riding comfort and the development of passenger car suspension technology in my country, air suspension is increasingly used in passenger ...[Details]
0 Introduction
At present, most of the automatic blood pressure monitoring systems used in hospitals are imported equipment, which are expensive and increase the cost of medical treatment. The...[Details]
This Design Idea shows how to keep telecom equipment operational during brief brownouts. First, it is important to understand a few details about the power supplies used for telecom equipment. The ...[Details]
The third generation iPhone, iPhone 3G S, has finally been released. Let's take a look at the differences in basic parameters between it and the previous generation iPhone 3G.
According to for...[Details]
1. Introduction
The current information age is an era built on the basis of the network. IP networks based on TCP/IP protocols, such as Internet, Intranet and Extranet, are developing with...[Details]