[i=s]This post was last edited by ddllxxrr on 2015-3-31 10:12[/i] There seems to be an online novel called "Turn Left, Turn Right". It says that the hero and heroine are separated by a wall, and they ...
Some time ago, a fan told us that he couldn't debug a circuit no matter what, and suspected that he bought a fake chip. Today we will share an article on how to judge whether your chip is genuine. The...
I have a problem now. I want to do GIS, which can display maps and navigation. I use xsbase270, and the processor is intel pxa270. evc 4.0. At first, I wanted to use esupmap5.0, but the trial version ...
[size=12px] I am developing a CAN driver for MCP2515 under WinCE. The hardware is a TQ2440 development board and the CPU is S3C2440. The problem is that every time I send data through MCP2515, I can a...
Already posted on Xianyu: [url]https://2.taobao.com/item.htm?spm=2007.1000337.18.2.bTCAtz&id=550878893471[/url][color=#333333][font=tahoma, arial, simsun]I bought it half a year ago, just opened my po...
Today's portable medical devices allow patients to diagnose and treat themselves, move around freely, and even use the devices when they are out and about. To achieve the "easy to carry" feature, po...[Details]
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]
Human body information monitoring is an emerging field. People envision developing wireless electroencephalogram (EEG) monitoring equipment to diagnose epilepsy patients. Wearable wireless EEG can ...[Details]
This article discusses how to use an ultra-low-power RF transceiver chip from Zarlink Semiconductor for pacemakers, neurostimulators, drug pumps, and other such implantable medical devices t...[Details]
WiMax technology needs to demonstrate its advantages in specific application scenarios in order to gain market recognition, which requires application testing to measure system performance para...[Details]
Signal sources have developed to a very wide range today. We can classify them according to the frequency range: ultra-low frequency (0.1m~1kHz), audio (20Hz~20kHz), video (20kHz~10MHz), radio fre...[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]
1. Basic circuit characteristics of power amplifier
The basic circuit of the complementary symmetrical OTL power amplifier is shown in Figure ①. Among them: C1 is the signal input coupling ele...[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]
FSK (Frequeney-Shift Keying) uses carriers of different frequencies to transmit digital signals. FSK signals have the advantages of strong anti-interference ability and long transmission distance, 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]
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]
"Where am I? Where am I going? Where is he/she? How far is he/she from me?..." Do you often have such questions like me? In fact, who can deny that these are questions that we often think about, ev...[Details]