I would like to ask how to obtain the information of handwriting on the PDA screen. For example, when typing the word "中", how can I obtain the value of the coordinate point of the starting point of t...
unsigned char aaa=0; //The following is to get the time of one second void TIM_0 (void) interrupt 1 using 1 { static count=0; if(count==20) { m0++; if(m0>=10) { m0=0; m1++; } count=0; } count++; aaa++...
After seeing this help post: https://bbs.eeworld.com.cn/thread-109287-1-1.html , I thought I should pay attention to Intersil! Unexpectedly, I found out a shocking news: Techwell was also acquired, an...
[b]1. Experimental task[/b] Use 4×4 to form 0-9 numeric keys and confirmation keys. Use 8-digit digital tubes to form a display circuit prompt information. When entering a password, only "8." is displ...
I would like to ask you: How to choose the capacitance value of the capacitor added to the positive and negative input terminals of the comparator to filter out interference? Please give me your valua...
The microcontroller I use is TMP19A61, written in C. The send buf and receive buf of this microcontroller share a register. I currently use the query method to send and receive data. Use loopback (con...
introduction
The emergence of high-performance, low-power embedded CPUs and high-reliability network operating systems has made it possible to implement applications with large amounts of comp...[Details]
1 Introduction
Water resources are the basic conditions for human survival and the lifeline of economic development. The reality shows that due to the global shortage of water resources and th...[Details]
LED lamps and bulbs are now rapidly replacing incandescent, halogen and CFL (compact fluorescent lamp) light sources in many general lighting applications. Flyback DC/DC converters are the power su...[Details]
In recent years, with the rapid development of the information industry, dot matrix LED display screens have been widely used in various advertising and information display systems such as the fina...[Details]
Today, the value of electronic components in cars accounts for 15-20% of the total vehicle. In the future, this proportion may be as high as 30-40% as more safety electronics, fuel consumption and ...[Details]
At present, how various communication technologies will evolve after 3G is a focus of great concern in the industry. Especially for TD-SCDMA, whether it can achieve smooth evolution to the next gen...[Details]
The DisplayPort interface standard is approved by the Video Electronics Standards Association (VESA) to provide an open, scalable standard for the entire industry. The development of DisplayPort ca...[Details]
With the continuous advancement of various technologies in the field of measurement and control, the baseband subsystem of general measurement and control equipment has entered the fourth generation o...[Details]
Abstract: Based on the ZigBee parking lot SMS car search system, the location of the vehicle in the parking lot is sent to the owner through SMS, which is convenient for the owner to quickly find ...[Details]
In order to prevent the lithium battery from being damaged by abnormal conditions such as overcharge, over discharge, and overcurrent, a lithium battery protection device is usually used to prevent...[Details]
With the rapid development of information technology represented by computers, semi-physical simulation technology plays an important role in many military and civilian fields such as aerospace and co...[Details]
At present, products in the field of monitoring generally focus on the field level, that is, the client/server (C/S) model is adopted, the purpose of which is to ensure the stability and reliability o...[Details]
3. Driving circuit design
The power driver uses a field effect tube, which is a field-controlled device with a capacitance effect between the gate and source, so it has high requirements for t...[Details]
Hall sensor
is a semiconductor element that works by using the Hall effect. Due to the high conversion efficiency, fast response speed, wide dynamic range, good frequency characteristics and ...[Details]
The development of the machinery manufacturing industry from single-machine automation to distributed DNC control systems requires the first technical solution to the information exchange and inter...[Details]