I encountered a strange phenomenon these days. I used the Maxim 6543 chip. During the serial communication debugging process, I set the serial mode to have parity bit. There was no problem communicati...
The turtle was crawling on the beach. Not far ahead, he saw an egg and started chatting with it.Hey, how are you? I noticed your skin is so elastic today. Where did you go for beauty treatment?The egg...
[i=s] This post was last edited by elec32156 on 2017-8-3 17:57 [/i] As shown in the figure, this is a transistor charging circuit, U303 is a charging transistor, Q301 is an NMOS, the principle should ...
After reading the data sheet for a few times, I suddenly found that LPC343 actually supports USB ISP download. In other words, you don't need any downloader or debugger, just a USB port to download th...
This article discusses how to wake up a touch-sensitive device such as a tablet without touching the device, using basic gesture recognition and novel proximity sensors. The article discusses the p...[Details]
0 Introduction
With the development of my country's economy, the number of motor vehicles continues to increase. The growth of existing roads and other hardware facilities can no longer meet t...[Details]
The Mobile Industry Processor Interface (MIPI) Alliance is an organization responsible for promoting the standardization of software and hardware in mobile devices. It has released the D-PHY specif...[Details]
1 Introduction
Ultrasonic waves have strong directivity, slow energy consumption, and can propagate over long distances in a medium, so they are used for distance measurement. Ultrasonic detec...[Details]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
1. Background:
The instrument system parameter detection and control of the chemical production workshop of Tangshan Coal Gas Coking Plant are all analog instruments, some of which are eve...[Details]
Key Points
1. Now, in addition to high-end smartphones and tablets, users also expect to use touch screens in other applications, and they are gradually appearing in cars and instruments.
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introduction
At present, the research on micron and nanotechnology is very active, which has led to the rapid development of microtechnology and micro-mechanical electronic system (MEMS) t...[Details]
The emergence and development of street lamps are inseparable from the prosperity and progress of cities, which makes street lamps useful. Conversely, street lamps also make the night of the city n...[Details]
Dual Tone MultiFrequency (DTMF) signaling is gradually being used in push-button telephones around the world. It quickly replaced the dial pulse signaling used in traditional rotary phones because ...[Details]
1 Introduction
Lijia'an Yellow River Diversion Culvert is a large gravity diversion gate in the lower reaches of the Yellow River. The Yellow River Diversion Culvert is located in Lijia'an Vi...[Details]
In the test of the electronic ignition module, in order to simulate the real working conditions of the electronic ignition system, the electronic ignition module is often placed in an environment h...[Details]
I. Introduction
The use of electronics in cars dates back to the early 20th century when electric starters replaced hand cranks. Automotive electronics became popular in the 1960s with the...[Details]
The circuit has overcharge protection, over-discharge protection, over-current protection and short-circuit protection functions. Its working principle is analyzed as follows:
1 Normal state
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