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I spent a month to make a clock. I made one before, click on the link to browse. This clock is an upgraded version, which fixe...
I installed evc in the order of Microsoft ActiveSync, evc4.0, evc sp4, standard sdk, pocket pc sdk2003. When I started it, I found that the compilation of the simplest single document file provided by...
I have just learned the 89c52 single-chip microcomputer. The schematic diagram of the experimental board has been uploaded. I want to use 74ls138 and 74ls47 to light up all the digital tubes at the sa...
As shown in the figure. When the input is high, T3 and T4 are cut off, T1 is on, and the gate of T2 is high. The source voltage is unknown. How to judge the state of T2? The textbook directly says tha...
Compilation environment PB 4.2, patch package: WinCEPB42-081231-Product-Update-Rollup-ARMV4.msi After installation, add SQL Mobile to WorkSpace, [code] Applications and Services Development ---SQL Mob...
UHF and HF are both general technology categories, but each category has independent supporting protocols. HF is more consistent in the 13.56MHz frequency band, although there are many internation...[Details]
1. Design Overview
1. Design Intent
The rapid development of medical imaging technology continues to promote the progress of modern medicine. CT, MRI, and PET are widely ...[Details]
introduction
At the beginning of this century, Veit used Einthoven's galvanometer to record the electrical activity of the human pregnant uterus from the body surface for the first time. In 19...[Details]
A biped robot joint constructed by pneumatic artificial muscles is introduced. The joint uses the flexible characteristics of pneumatic artificial muscles to effectively control the impact of the la...[Details]
With the development of the automobile industry, the complexity and information density of automobile information systems are increasing. Displays are no longer just basic centralized instrument di...[Details]
JTAG Technology Introduction
One disadvantage of shrinking technology is that the complexity of testing small devices increases dramatically. When the board area is large, the board is tested...[Details]
This issue will briefly introduce the test related to spectrum - occupied bandwidth.
Definition: Occupied bandwidth refers to the bandwidth corresponding to 99% of the total transmitted power, cent...[Details]
Introduction With the continuous development of economy, people's demand for automobiles is increasing day by day. Correspondingly, automobile consumer groups are becoming more and more mature. It...[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]
In recent years, the development of automotive electronic technology has significantly improved vehicle safety performance. One of the technologies that is expected to be widely used is the tire p...[Details]
Capacitive sensing user interfaces are emerging as a practical and innovative alternative to mechanical buttons in mobile phones. While capacitive sensors can be viewed as a drop-in replacement fo...[Details]
After more than ten years of technological development and application market cultivation, biometric technology has been applied on a large scale in many application fields. As far as the Chinese m...[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]
As mobile phones and other portable devices have more functions, there are more potential input and output (I/O) channels for electrostatic discharge (ESD) voltage to enter, including keyboards, bu...[Details]
Facing the global financial tsunami, in order to stimulate the economy, the country will invest 2 trillion yuan in railways during the "Eleventh Five-Year Plan". The large-scale construction of rai...[Details]