The following is the code placed on CE as the server side: SOCKET s = socket (AF_BT, SOCK_STREAM, BTHPROTO_RFCOMM); SOCKADDR_BTH sa; memset (&sa, 0, sizeof(sa)); sa.addressFamily = AF_BT; sa.port = 0 ...
1 Advantages and disadvantages of the front-end and back-end systems. The architecture of the front-end and back-end systems can be described in one sentence as a large loop, plus interrupts, which fo...
The framework class receives serial port data and passes it to the corresponding VIEW class for processing through messages. However, the VIEW class implements the function of popping up a menu by pre...
I put a GPRS module on the board, SIM508. When I debugged it today, I found that the dial-up under WINCE5.0 always showed "dialing "*99***1#", and then there was no response. After a long time, it sho...
Using DSP to realize the precision expansion of IIR filter Abstract: This paper mainly introduces how to implement extended precision multiplication on TMS320C54X DSP, the basic principle and algorith...
introduction
Since the beginning of the 21st century, the world of information has changed rapidly. Maybe a high-tech product will be released today and a better similar product will be releas...[Details]
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]
With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[Details]
Introduction
In industrial control, speed measurement is often required. Generally, a contact tachometer is used. This tachometer must be placed against the center of the shaft to measure. It...[Details]
introduction
LEDs continue to gain popularity in automotive applications, thanks to their long lifespan and the flexibility they offer for body styling and interior design. Some may be surpris...[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]
0 Introduction
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The ways to reduce costs are: ① Use the Bluetooth data transmission...[Details]
PID is proportional differential adjustment. You can refer to the detailed introduction in the automatic control course for details! The positive action and the negative action in temperature contr...[Details]
1. Electromagnetic compatibility design
Electromagnetic compatibility refers to the ability of electronic equipment to work in a coordinated and effective manner in various electromagnetic env...[Details]
Modern communication equipment, portable electronic products, laptops, electric vehicles, small satellites, etc. generally use batteries as power sources and are widely used. However, the batteries...[Details]
1. Introduction
With the continuous development of modern urban construction, infrastructure and real estate are becoming increasingly prosperous, and the quality requirements for construction ...[Details]
0 Introduction
In the fields of petroleum, chemical industry, metallurgy, electricity, textile, light industry, water conservancy and other industries and scientific research, relevant pressur...[Details]
System Block Diagram
The system uses DSP56F826 chip as the core control module and CMOS digital image sensor chip. The image acquisition resolution can reach 640×480 pixels. When high-re...[Details]
Liquid crystal displays are increasingly widely used in pocket instruments and low-power application systems due to their advantages of low power consumption, small size, rich display content, and ...[Details]
1. Project Introduction
Energy consumption is an important controllable part of the cost of enterprise products. Reducing energy consumption is an important way for enterprises to reduce costs...[Details]