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Rc522 has been studying for four or five days. Today, I am barely aware of what is going on. The results are summarized as follows: I. Operation Procedure of rc522: 650) This. width = 650; "style =" float: none; "Title =" IMG 11111111.png "src =" http://s3.51cto.com/wyfs02/M00/45/CE/wKiom1PrgQ_zvLjvAABR3-c3050394.jpg "alt =" wKiom1PrgQ_zvLjvAABR3-c3050394.jpg "/> 650) This. width = 650; "style =" float: none; "Title =" image 1231213.jpg "src =" http://s3.51cto.com/wyfs02/M01/45/CF/wKioL1PrgieTd

management, a number of emerging industries into a leading industry. Develop an "internet +" action plan to promote mobile internet, cloud computing, big data, and Internet of things with modern manufacturing industry, promote e-commerce, industrial Internet and the development of financial health, leading Internet enterprises to expand the international market.From the point of view of the factory software management system, we deeply analyze the characteristics of MES system:1), the use of a

The update generation CK200 Auto key programmer software is updated to V38.05 which adds some new car models. Here is the CK-200 Upgrade Tool and update instructions download.Software Version:latest V38.05Free download CK-200 OBD key programmer V38.05 Update ToolHttps://mega.co.nz/#!W8MBCYJJ!6B1vcHavQNQiJwR01sDoM0AZraqT4ffjdO0sL8VUeZkFile including:CK-200 Upgrade Tool.exeCK200 Software Update InstructionCK200 V38.05 Update Video GuideRead me file with software displayCK200 Key Pro Feature:1) No

, representing the length, width, thickness.This method of steel plate material types of enterprises, but in many materials, board rules up to more than 1000 kinds of ship enterprises can not be implemented.Plate side uneven, very rough, self-adhesive barcode label is not easy to stick, lifting and handling easy to fall off, resulting in difficult to identify steel plate, seriously affecting work efficiency.Most of the steel plate warehouse is outdoor, dust, wind and rain, steel plate side is ce

, he just needs to lean on the self-help book return terminal in the hall and then walks out of the library. The entire book borrowing process did not involve staff or even take the initiative to swipe the card. This is a cross section of university life that demonstrates the integration of modern information technology, modern IoT technology, and virtual reality technology. Now, the "smart campus" has been officially approved by the First National educational informatization pilot Unit of the M

In the BS structure of the program, how to develop a cross-web browser IC card reader program?In general, the use of physical hardware in a BS structure program has many limitations, and the OCX control that is addressed through ActiveX technology is only available on IE and cannot be used in Chrome or Firefox. Friends of my technology to provide RFID reader cloud services to completely solve this problem, he can not only use in IE, but also in the Ch

the wrong information, the reason may be the problem of the code, because the use of wireless transmission to use the protocol stack, and this ZigBee does not run the protocol stack, so wireless transmission will definitely have problems. Using the wireless serial number transmission module CC1101 to debug the discovery or there is a problem, the reason may be the timing problem, if you want to completely solve this problem, there is still a lot of difficulties, the topic is only wired data tra

) devices between the connection. Bluetooth does not have this limitation and is not blocked by walls. The current research direction of IrDA is how to solve the problem of line-of-sight transmission and improve the data transmission rate. NFC Technology NFC is a short-range wireless communication technology standard that is driven by Philips, Nokia and Sony and is similar to RFID (non-contact Radio frequency identification). Unlike

This is a personal collation of the mobile Phone development document template, easy to write their own documents later. The general content is as follows , in detail in the personal csdn download :Mobile forwarding SMS upload temperature and humidity informationThe mobile side is responsible for receiving the background temperature and humidity sensor through the text message sent by the temperature and humidity and latitude and longitude information, the mobile backend after receiving the We

. [SuppressUnmanagedCodeSecurity]Internal class Shell32...{// MethodsPublic Shell32 ();[DllImport ("shell32.dll", CharSet = CharSet. Auto)]Public static extern IntPtr SHBrowseForFolder ([In] UnsafeNativeMethods. BROWSEINFO lpbi );[DllImport ("shell32.dll")]Public static extern int SHCreateShellItem (IntPtr pidlParent, IntPtr psfParent, IntPtr pidl, out FileDialogNative. IShellItem ppsi );Public static int SHGetFolderPathEx (ref Guid rfid, uint dwFlag

. Therefore, experts and scholars have proposed many indoor wireless positioning technical solutions, such as A-GPS positioning technology, ultrasonic positioning technology, Bluetooth technology, infrared technology, RFID technology, ultra broadband technology, wireless local area network, optical tracking and positioning technology, as well as image analysis, beacon positioning, and computer vision positioning technology. In general, these indoor po

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1. Internet of Things OverviewAccording to the now more general definition, the Internet of Things refers to the radio frequency identification (RFID), infrared sensors, global positioning systems, laser scanners and other information-sensing equipment, according to the agreed Protocol, the use of any object connected with the Web for information exchange and communication, in order to achieve intelligent identification, positioning, tracking, A netwo

equipment through the Internet.2, communication "refers to data communication only, that is, through the computer network system and communication system to achieve the end-to-end transmission." The communication "letter" refers to the information (information), the information carrier is the binary data, the data can be used to express the traditional media form of information, such as sound, image, animation and so on. "Communication" weighs on the means of transmission or use, from this poin

How to develop the underlying hardware how to write an interface documentThese days in the supermarket RFID clearing system of the upper computer program to write, with the vb.net. The bottom is used by others to develop a good SDK, why write this article? Recently, because of the functional limitations of the device at hand, I looked for other companies on the Internet RFID card reader, because I was to do

the common name on the certificate.9th Hardware Attack 9.1 Physical access: Push the door into the1. Latch Technologycan help an attacker to open locks of almost the same type with a common key. The use of Newton's principles of physics. The method is: The standard key puts the lock pin in a straight line so that the user can turn the key.Countermeasures against key-hittingThe side pin is used to provide multiple layers of safety protection.You can also use multi-lock devices, video surveillanc

Teach you to buy Huafeng handheld IC card reading and writing machine: F8 handheld IC card reader with 32-bit ARM 9 core microprocessor, with high performance, low cost, strong scalability and so on, with the wince operating system, with multi-tasking capabilities, providing advanced maintenance and management functions, It greatly improves the maintenance and development efficiency of the application and ensures the stability of the application. Support reading and writing

applicationOn the host side of the chip cost and other end-product cost than Bluetooth more competitive price.4)5) Large network capacity. Each ZigBee network can support up to 255 devices, which means that each ZigBee device can be connected to another 254 devices.6) The effective range is small. Effective coverage range 10~75m, depending on the actual transmit power size and a variety of application patterns, can basically cover the ordinary home or office environment.7) Flexible working band

are equipped with Sensormatic and RFID tags. the glasses are available at a list price of $12.00 or lower when purchased with a Dolby 3D bundle. New Dolby 3D kids 'glasses include 3 M's new multilayer, scratch-resistant, antireflective-coated optical film lenses, which reduce the weight of the glas, increasing comfort while providing the excellent optical performance moviegoers Except CT from Dolby 3D. With the same mechanical design as the adult ver

Implementation Method You can use reflector.exe to check its code and call several windows shell32 APIs. [Suppressunmanagedcodesecurity]Internal class shell32...{// MethodsPublic shell32 ();[Dllimport ("shell32.dll", charset = charset. Auto)]Public static extern intptr shbrowseforfolder ([in] unsafenativemethods. browseinfo lpbi );[Dllimport ("shell32.dll")]Public static extern int shcreateshellitem (intptr pidlparent, intptr psfparent, intptr pidl, out filedialognative. ishellitem P