Denna rapport handlar om att använda en trådlös kommunikationsteknik som kallas NFC (Near Field Communication) vid kommunikation mellan en Android mobiltelefon och en NFC-läsare som kallas ACR122U. Syftet med detta projekt är att: Välja en Androidtelefon som har stöd för NFC. Skapa en applikation som skall köras på Androidtelefonen och som skall skicka ett lösenord via NFC. Skapa ett program som skall köras på en dator med operativsystemet Windows 7 och som skall hantera ACR122U. Förklara den insamlade kunskapen i detta dokument så andra lättare skall kunna arbeta med NFC. Följande frågor kommer att besvaras i denna rapport: Vilken Androidtelefon bör användas vid utveckling av en applikation som kan kommunicera via NFC? Vad krävs vid utveckling av en applikation som kan kommunicera via NFC? Aktionsforskning är den forskningsmetod som användes vid sökandet efter svar på frågorna ovan. Detta innebär att forskningen görs genom att läsa om ämnet, genomföra en eller flera lösningar för att hitta en fungerande lösning och sedan dokumentera resultaten. Implementeringen av programvaran på mobiltelefonen genomfördes med mycket hjälp från Android Developers hemsida. Vid utvecklingen av den programvara som skall användas av datorn för att hantera ACR122U gjordes en hel del forskning. En demoapplikation och ett Javabibliotek som heter "nfctools" som är skapade av det Tyska GrundID GmbH var mycket användbara vid försöken att ta reda på hur kommunikationen fungerar. Programmet som hanterar ACR122U har utvecklats genom att växelvis läsa och testa olika lösningar. Den mobiltelefon som valdes under det här projektet är Samsung Galaxy Nexus som kör Android 4.0.Den programvara som hanterar ACR122U måste hantera dessa saker: Skicka data via USB till ACR122U - Detta gjordes med hjälp av en klass som kallas "ModWinsCard" vilken kom med ett utvecklingspaket för NFC. Ett ACR122U pseudo-APDU (Application Protocol Data Unit) kommando. Några av ACR122U:s NFC-kontroller (PN532) kommandon. Delar av NFC lagren: NDEF (NFC Data Exchange Format), SNEP (Simple NDEF Exchange Protocol) och LLCP (Logical Link Control Protocol). Det är viktigt att veta vilka NFC lager som finns implementerade i de enheter som skall kommunicera med varandra via NFC. Samma lager måste användas för att packa och packa upp data. / This report is about using a wireless communication technology called NFC (Near Field Communication) when communicating between a mobile phone using an Android operating system and a NFC reader called ACR122U. The purpose of this project is to: Select an Android phone which supports NFC. Create an application that runs on the Android mobile phone and which shall send a password via NFC. Create a program which will run on a PC running Windows 7 and which will handle ACR122U. Explain the gathered knowledge in this document so that others may more readily be able to work with NFC. The following questions will be answered in this report: Which Android mobile phone should be used when developing an application which will communicate via NFC? What is required when developing an application that can communicate via NFC? Action research is the research method that was used when searching for answers to the questions above. This means the research is done by reading about the subject, implementing one or more solutions in order to find a working solution and then documenting the results. The implementation of the software on the mobile phone was done with a lot of help from the Android Developers website. When developing the software to be used by the computer to handle ACR122U a lot of research was made. A demo application and a java library called “nfctools” made by the German company GrundID GmbH were very useful when trying to figure out how the communication works. The program that handles ACR122U was developed through alternating between reading and testing different solutions. The mobile phone that was chosen during this project is Samsung Galaxy Nexus running Android 4.0.The software that handles ACR122U needs to handle these things: Sending data via USB to ACR122U – This was done using a class called “ModWinsCard” which came with an NFC development package. An ACR122U Pseudo-APDU (Application Protocol Data Unit) command. Some of ACR122U’s NFC controller (PN532) commands. Some parts of the NFC layers: NDEF (NFC Data Exchange Format), SNEP (Simple NDEF Exchange Protocol) and LLCP (Logical Link Control Protocol). It is important to know which NFC layers are implemented in the devices that are to communicate with each other via NFC. The same layers must be used when packing and unpacking data.

Result of my work is make device for logging visitors or game players. I arranged to make two devices, web pages and communication protocol between server and devices. Graphical device will have graphical display with HDMI input, Raspberry main board, NFC reader, camera and GSM module. Second device will have microcontroler ATMEGA644, NFC reader, 2-4 line text display and optional GSM module. Both device will communicate with server via GPRS. Server can change configuration of devices and colecting logs

Wireless Sensor Network (WSN) have the potential to greatly affect every part of industrial and people’s lifestyle. For this reason, iPack VINN Excellence Center contributes to wireless tracking platform for fresh food and lifestyle. Every new idea or technology is attempted to integrate to the WSN for more efficient, better user experience and lower power consumption. Meanwhile Near Field Communication (NFC), a short-range wireless connectivity technology, which can make communication easily,safety and intuitively arousing iPack interest. So this master thesis focus on integrating NFC technology into existing systems to build a NFC-enable Wireless Sensor Network system. And with thissystem, only one simple touch, data from sensor node can be transmitted to mobile phone or tablet. Furthermore parameters of sensor node also can be configured easily by using above devices. So basically the NFC peer-to-peer communication protocol is mainly used. To implement and test the functions of the demonstration, a sets of hardware is needed to chosen and bought. How to design the system without changing old WSN is very tricky. To design a NFC adapter which can connect existing WSN with NFC part is thesolution of this thesis. So the main task was designing a NFC adapter which could be connected with either mobile phone/tablet or sensor node. It was the NFC adapter that makes mobile phone/tablet or sensor node NFC enabled. For the connection method, the high speed UART interface was chosen to connect with sensor node. The architecture of NFC adapter includes two main parts, A NFC chip (PN532) from NXP and a MCU(VNC2) from FTDI. The PN532 uses its antenna to send or receive data with different NFC protocols. The VNC2 is used to store sensor collected data and sends command though UART to control the PN532. Learning to use the PN532 was a tough task during the thesis work. Both official manuals and demo application are helpful for understanding the PN532 controlling. In addition, We analysed the sniffer data from demo application and code from NXP software design kit (SDK). which helped us to know the process of the PN532 peer-to-peer communication. After learning from official application, user manual and monitoring software/hardware design kid applications, we began to design our own hardware suitable SDK for the NFC adapter. At first we connected the hardware parts. When hardware connection was ready, we wrote and tested the firmware for VNC2 platform. Then due to the reason that Windows is more stable than our build VNC2 platform system at that moment, we wrote our own software design kid for NFC adapter under Windows OS first. The basic idea of software design kid is easy to use, modify and integrate into any other platforms. At the end of the thesis project, we integrated our own SDK into VNC2. When integration was done, a lot of stability and performance validation were done. Based on the result of testing, we optimized and modified our SDK and tested it again. This thesis project basically handles out a new ideal of integrating NFC to existing wireless sensor network to make WSN NFC enable. To prove the idea, we made a demo to show the enhanced sensor node and the results are satisfied. However there still has a lot of works and a lot of improvement should can be done in the future.

This master’s thesis deals with communication system design via the NFC and Wi-Fi interface. The thesis has two basic goals. The first goal is to create a device that is capable of storing of data and its subsequent transfer via the NFC interface. The second aim is to utilize this device for measuring various physical variables. The IoT technology is employed to fulfill the aforementioned goal. IoT technology is capable of visualizing data in real time and make them accessible via the Internet. The result of this work is an universal device, that contains the most popular communication interfaces, such as I2C, SPI and that is capable of processing measurement data from digital, analogue, and wireless sensors.