I intercepted the command code sent by a mobile phone as follows: 4b 00 21 27 00 01 00 8b 97 7e 4b 00 21 27 00 02 00 e3 bd 7e 4b 00 21 27 00 07 00 5b c3 7e 4b should be the command code 8b 97 or somet...
The system's up and down frequency conversion cannot be separated from the stray. Strictly speaking, all communications cannot be separated from the stray....
[font=Arial]I want to use two dry batteries as the power supply for the microcontroller development board. Is it feasible? My development board uses L7805 AC voltage regulator. Now I want to bypass 78...
[align=left][font=宋体][font=Verdana][size=4][color=#000000]With the development of society, the reform of the medical system, the media's publicity, the people's legal awareness has been greatly streng...
[i=s]This post was last edited by jameswangsynnex on 2015-3-3 19:56[/i]The circuit is shown in the figure. It consists of a DC voltage regulator circuit, a delay circuit, an overvoltage and undervolta...
I want to ask you how to design an IC card interface driver that complies with the ISO7816 standard. What is the principle? I want to make an IC card reader/writer on ARM7. The card is contact-type. H...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
introduction
1 The significance of using RTOS on MSP430
It is understandable that it is meaningless to use RTOS on MSP430. Because the hardware resources of MSP430 are limited (for exampl...[Details]
introduction
my country has a vast territory and a large population. The scale of housing construction is huge, and the amount of residential construction is large and wide. It is still on t...[Details]
In
circuit design,
current
measurement
is widely used, and the main fields are divided into three categories: in measurement,
the electric meter
is used to measure the curre...[Details]
Google's driverless technology is not only an eye-catching technology, but also a subversion of the car usage model.
Those who have watched anti-terrorism films and TV dramas must have been im...[Details]
Overview
As a remote network communication control method with advanced technology, high reliability, complete functions and reasonable cost, CAN-bus has been widely used in various automa...[Details]
Product series: PB-B-RS232/485 interface (hereinafter sometimes referred to as "interface") is a product in the PROFIBUS bus bridge series.
The main purpose of the bridge series ...[Details]
1 Introduction
Building Automation System (BAS) is a distributed monitoring system (DCS) designed according to distributed information and control theory. It is the result of the mutual de...[Details]
1 Introduction
With the development of control, computer, communication, network technology, etc., a new control technology, namely fieldbus, has emerged in the field of industrial control...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
This article will introduce a design method for a distributed control system used in a tracking car, which can perform distributed control of motor modules, sensor modules, and lighting control mod...[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]
1. Proposal of
reconfigurable
measurement and control system
The measurement and control system generally refers to a system based on
computers
to realize data acquisition a...[Details]
A stepper motor is an electromagnetic mechanical device that converts an electrical pulse signal into an angular displacement or a linear displacement. The stability and reliability of a stepper mo...[Details]
Distributed Wireless Communication System (DWCS) uses distributed antennas, distributed processing control, joint signal processing and other technologies to improve the system's spectrum efficie...[Details]
Embedded System
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