Software and hardware development of elevator access control systemProject budget:¥ 15,000~20,000
Development cycle: 50 days
Project Category: Embedded
Bidding requirements:Project tag:Embedded softwa...
I studied FATFS file systemtwo days ago . After a period of hard work, I finally read the file, but I encountered many problems in the process. One of them was that after I wrote the underlying interf...
Based on TI LM4F and embedded real-time operating system μC/OS-II, this paper designs a small and easy-to-operate portable bicycle outdoor sports system, which can automatically display the current bi...
Let's discuss the selection of components on PCB boards. This is really a super difficult problem. Material selection is very important! ! ! Seeking experience, communication, and secrets....
The manual says there is a reset circuit inside the chip.All kinds of "test boards" have RC reset.Do you guys use external reset circuits on your products?For example, STM809?If not, the NRST pin is l...
[i=s]This post was last edited by azhiking on 2014-3-6 16:29[/i] Operating system: Win7 32-bit IDE: CCS V5.5 Platform: Embest BeagleBone Black (B4) Use TI Resource Explorer of CCS and select Hello Wor...
The rapid development of the Internet has realized high-speed information transmission and resource sharing, greatly facilitating people's lives. Embedded systems are widely used in various electr...[Details]
In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer
87LPC764
, and wa...[Details]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guang...[Details]
introduction
Solar cells and LED lighting are typical applications of new energy and energy-saving and efficient technologies. Solar LED lighting uses solar cells to convert solar energy...[Details]
5. Identifiers and keywords of C language
A complete PIC microcontroller C language program usually consists of six parts: include files (i.e. header files 1, variable definitions, variable de...[Details]
1. With the development of modern industry and the continuous improvement of automation, some medium and large control systems have been greatly facilitated, which not only makes control easier, bu...[Details]
1 Introduction
Intelligent control instruments are one of the most commonly used controllers in industrial control. They are mainly aimed at a specific parameter (such as pressure, tempera...[Details]
The potentiometer is an adjustable electronic component. The main functions of the potentiometer in the circuit are as follows:
1. Used as a voltage divider
A potentiometer is a continuou...[Details]
Abstract: In recent years, with the establishment and grid-connected power generation of a large number of solar photovoltaic power stations at home and abroad, photovoltaic grid-connected inverter...[Details]
With the widespread application of new services and technologies in the communications industry, the scale and capacity of operators' network construction are getting larger and larger, and the ris...[Details]
1 Overview
In the field of traditional lighting, the concepts and definitions of lamps and lamps are clear. Lamps and lamps have their own applicable product standards, supporting technical st...[Details]
When developing electronic products with processors, how to improve anti-interference ability and electromagnetic compatibility?
1. The following systems should pay special attention to anti-...[Details]
At present,
the control system used in
automobiles
can be divided into three parts from the functional point of view:
sensor
unit, control unit and execution unit. Among them,
th...[Details]
In the TV monitoring system, in order to complete the collection of information from various information points (video, audio, alarm signal) and the control of various front-end devices (PTZ, lens,...[Details]
1 Introduction
The stepper motor is an actuator of an open-loop servo motion system, which is controlled in a pulse mode and outputs angular displacement. Compared with AC servo motors and DC servo ...[Details]