Some time ago, in order to make a small device, I first selected STC89C52 as the processing core. Later, as the functions continued to be enriched, the program became larger and larger, and the small ...
I didn't pay much attention to it before, I just configured io according to the library, and found a problem that the manual didn't clearly explain, that is, a pin has two or three multiplexed functio...
In the circuit published in the first edition, a switching power supply with small power capacity was used as the auxiliary power supply.
During the DIY process, it was found that although it can solv...
I would like to ask where can I buy the following products? a) MSK 4200, 75 Volt 5A H Bridge PWM Motor Driver/Amplifier MSK ( MS Kennedy Corp) 100 pcs b) MSK 4203, 75 Volt 10A H Bridge PWM Motor Drive...
In the car, the negative pole of the battery is connected to the metal part of the car body, so the negative pole wire in the car is usually called the grounding wire. The grounding wire plays an impo...
[color=#FF0000]The National Hardware Engineer Training Base is the exclusive educational institution for hardware engineers designated by the Electronic Education and Examination Center of the Ministr...
The radio frequency identification (RFID) market is experiencing strong growth, with sales reaching $1.7 billion in 2004 and expected to reach $5.9 billion in 2008. This surge in demand is driven b...[Details]
Designers of hearing aids have stringent requirements. Hearing aids must be small enough to fit in or behind the ear, operate on ultra-low power, and be free of noise or distortion. To meet these requ...[Details]
This summary will introduce the transmitter characteristic test of TD terminal products - uplink power control. According to the 3GPP TS34.122 standard, UE uplink power control is divided into uplink ...[Details]
Multi-parameter monitor is an important device in clinical nursing. It can monitor the patient's ECG, blood pressure, blood oxygen saturation, respiratory rate, pulse rate and temperature. At present,...[Details]
Introduction
Wireless operators are driving demand for broadband and data rates by offering enhanced data services to increase average revenue per user (ARPU). The need to provide users with ...[Details]
introduction
The data detected by various
measuring instruments
often need to be transferred to a PC for data processing and archiving, so as to make full use of the rich hardware an...[Details]
1. What is fading?
In terms of scope, fading can be roughly divided into three types: large area fading, small area fading and indoor fading. As shown in Figure 1, large area fading refers t...[Details]
With the rapid development of my country's power industry, the power system has higher requirements for the collection of power generation, transmission, distribution and consumption. As a prerequis...[Details]
Abstract:
Online dynamic signature authentication is increasingly used in various fields, especially in banking and financial systems and personal identification. As the basis of online signa...[Details]
With the improvement of social automation, human-computer interaction capabilities urgently need a major change, and develop in a direction that is more convenient to use and more intuitive. Laser ...[Details]
Abstract:
Aiming at the problems of repeated design and high cost of existing LED large-screen displays, a modular LED large-screen display is proposed, which can realize flexible configurati...[Details]
1 Introduction
In recent years, with the rapid growth of mobile phones and MP4 video players, it is estimated that the production of mobile phones this year will reach 1 billion units, and...[Details]
From a broad perspective, the development of digital television in my country started in 1995 with a special project on digital television science and technology. In 1998, China's first and the wo...[Details]
0 Introduction
One of the basic tasks of machine vision is to obtain image information from the camera and calculate the geometric information of objects in three-dimensional space, so as ...[Details]
The growing global interest in green power has added new variables to the design of power supplies and power adapters. Designers must not only traditionally consider the design specifications requi...[Details]
Talking
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