The master’s thesis is dealing with PLC technology and its modem realization based on several types of standards by using commercially available integrated circuits. This projects also describes fundamentals and prerequisites for building the PLC network fulfilling the European standard CENELEC. The work further describes designed system concept, which serves as the automated system for the appliances connected to an electrical network. Components are selected for implementation and then is introduced concrete solution and implementation power-line network. Within the work are then other parts, that together form a system concept. Work includes the hardware and software implementation and a description of the options implemented system.

Contactless cards are everywhere nowadays due to their ease to use and low price to produce. In addition, their reliability is excellent. That is why they are used in systems where security is essential within a low price. To develop the associated systems (cards, readers, terminals), efficient tools are needed. These tools can be a spy analyzing any communication or an emulator that can act and answer exactly as a real contactless card. The objective of this thesis was to develop a contactless card emulator on a product that is currently only spying, the NomadLAB of KEOLABS. The emulator feature is based on a discontinued product, the ProxiCARD, and it has for main objective to be compliant with the ISO 14443 standard. Through the analysis of its architecture and its current performance, I have developed a complete system that can be integrated into the ecosystem of the KEOLABS products. The features I developed take place into the source code of the NomadLAB, at the level of its ARM microcontroller in language C, and in its FPGA in language VHDL. The ARM is here to handle all the smart part of the transmission, while the FPGA to handle the coding and decoding process. In addition, I developed an antenna able to on one hand receive the signal from a reader and on the other hand to reply to it by modulating the magnetic field. I also developed and added my controls to the current computer software. Finally, I have written a lot of testing to make sure that this new system is reliable. The NomadLAB is now able to emulate a contactless card complying with ISO14443 standard, while keeping its spy features, and its control through a computer.

The master’s thesis deal with design and realization of measuring station, which process data from environmental sensors in IoT environment. Thesis includes research of sensors, cloud services for IoT, microcontrollers and environmental data available online. Thesis contains detailed procedure for realization of designed system, including code description for microcontrollers STM32W55 and STM32 B-L475E-IOT01A2 Discovery kit, configuration of IBM Watson IoT Platform cloud service and procedure for correct programming of Node-RED application responsible for logic of whole system. Source code, which might be used for simple implementation of designed system, is attached to the master’s thesis.

Modern medicinering medför att patienter kan behandlas mer effektivt om den tas pårätt sätt. När patienter själva ansvarar för sin medicinering kan den feldoseras ellerglömmas bort, vilket ändrar förutsättningar för dess inverkan. Glömska kombineradmed sinnesnedsättningar försvårar för patienten att sköta sin medicinering.Lösningen på detta problem är idag utökad hemvård där vårdpersonal hjälper patientenatt ta rätt medicin vid rätt tidpunkt. En teknisk lösning kan vara ett inbyggt systemsom påminner patienten, sparar missade doseringar och kan därmed ge mer informationtill läkare som då kan göra mer välgrundade beslut för fortsatt vård.Resultaten visar att en dosettask kan användas för att påminna patienter att ta sinmedicin och skicka missad dosering med närfältskommunikation. Som mikrokontrolleranvändes en STM32 Nucleo, med en tillståndsmaskin som mjukvarulösning. I vidarestudier kan ett realtidsoperativsystem användas. Systemet programmerades medArduinos utvecklingsmiljö, men ett alternativ är IAR. Projektets prototyp kunde medde flesta modulerna uppnå specifikationens batteritid, utöver ljudmodulen som användes.För att komma fram till detta resultat skapades två teoretiska extremfall därprototypen testades.Dosettasken kan leda till minskat pillersvinn och en lägre kostnad då färre hembesökkrävs. Dessutom resulterar detta i ökad självständighet för patienten. Dessa faktorerleder till att dosettasken bidrar till en ökad hållbar utveckling. / Modern medication allows patients to be treated more efficiently if taken properly.When patients themselves are responsible for their medication, it can be wronglydosed or forgotten, which changes the conditions for its effects. Forgetfulness combinedwith impaired senses make it difficult for the patient to take care of his medication.The solution to this problem today is increased home care, where healthcare professionalshelp patients to take the right medication at the right time. A technical solutioncan be an embedded system that reminds the patient, saves missed dosages, and canprovide more information to doctors who can make more informed decisions for furthercare.The results show that a pill dispenser can be used to remind patients to take their medicationand send missed dosages with near field communication. As a microcontroller,a STM32 Nucleo was used, with a state machine as software solution. In further studies,a real-time operating system can be used. The system was programmed with Arduino'sdevelopment environment, but an alternative is IAR. The prototype of the projectcould achieve the specifications battery life with most modules, except to thesound module used. To achieve this result, two theoretical extremes were created inwhich the prototype was tested.The pill dispenser can lead to reduced waste of pills and a lower cost, as fewer homevisits are required. In addition, this results in increased independence for the patient.These factors cause the pill dispenser to contribute to increased sustainable development.

This thesis report is about designing a prototype and establishing audio communication between a computer and Digital Signal Processor (DSP) using two preamp circuits using both auxiliary and USB connection. The paper gives the reader an overview on how audio is transmitted from a computer, through the system and to the desired output. The reader should also get a better understanding of how an AD-converter samples the incoming signal to the Discrete plane and how an AUX or phone connector works. This information can be used for designing preamp circuits to communicate between a computer and the DSP. The DSP circuit uses an STM32 processor to control the incoming and outgoing signals with the use of ADC and DAC conversion. The DSP also uses microphones to capture surrounding sound. An addition is to make a prototype on how to use these microphones to  send the signal upstream to the computer. The microphone is then benchmarked with the use of Matlab, calculating Total Harmonic Distortion. Management and optimization of code structure and resources is done in the source files of the project. Using imperative C programing, large functions are broken down into smaller functions to ease readability and control flow. The result is a prototype circuit that can communicate audio signals with both audio jack and USB between computers input and output to the DSP. Using CubeMX in conjunction with CubeIDE to add additional ADC channels to be able to incorporate an automatic source control when the audio jack or USB is connected. / Denna avhandling handlar om att designa en prototyp och etablera ljudkommunikation mellan en dator och en digital signalprocessor (DSP) med hjälp av två förstärkarkretsar genom både aux- och USB-anslutning. Rapporten ger läsaren en översikt över hur ljud skickas från en dator, genom systemet och till önskad utgång. Läsaren bör också få en bättre förståelse för hur en AD-omvandlare fungerar för att sampla den inkommande signalen till tidsdiskreta planet och hur en AUX- eller telekabel fungerar. Målet är att använda denna information för att skapa förstärkare som kan kommunicera mellan en dator och DSP:en. DSP-kretsen använder en STM32-processor för att hantera de inkommande och utgående signalerna med användning av ADC- och DAC-omvandling. DSP:en använder också mikrofoner för att fånga omgivande ljud. Ett tillägg är att skapa en prototyp för hur man kan använda en av mikrofonerna för att skicka signalen till datorn. Mikrofonen jämförs sedan med hjälp av Matlab genom att beräkna total harmonisk distorsion. Hantering och optimering av kodstruktur och resurser görs i projektets källkodsfiler. Genom att använda imperativ C-programmering bryts stora funktioner ned i mindre funktioner för att underlätta läsbarheten och styrningen av flödet. Resultatet är en prototypkrets som kan kommunicera ljudsignaler med både ljuduttag och USB mellan datorns in- och utgång och DSP:en. Genom att använda CubeMX tillsammans med CubeIDE läggs ytterligare ADC-kanaler för att möjliggöra automatisk källkontroll när ljuduttaget eller USB-anslutningen är ansluten.

This thesis presents the design and implementation of a multifunctional radar sensor. Utilising microstrip transmission line technology, a front-end receiver has been designed based upon a six-port architecture. Additionally, digital signal processing has been implemented on a microcontroller, enabling processing and extraction of information from the down converted quadrature signals. Results have show that the sensor is capable of operating as both a continuous wave radar and frequency modulated continuous wave radar. Through measurements, it has been established that the sensor is capable of wireless measurements, such as vital signs and vibrations. Furthermore, a graphical user interface has been design, allowing a way of switching between different radar configurations and the presentation of measured data to the user.

Det finns ett behov av att utveckla en sensorlösning som kan bidra JU Solar Team med kördata från körning. Detta för att skapa underlag för mer verklighetstrogna statiska och dynamiska simuleringar av bilen. Arbetet har utförts vid Jönköpings Tekniska Högskola. I studien ingår utförda experiment samt programmering av ett flertal diverse sensorer och kretskort, både individuellt och sammansatt kopplade. Resultatet från arbetet visar att det är möjligt att skapa ett batteridrivet system som kan mäta samt lagra data från accelerometer, gyroskop, luftkvalitetssensor och lastceller oavbrutet under 24 timmar. Systemets kombination av lågt vikt och kompakt storlek gör att det inte stör föraren under tävling och skapar möjlighet att i framtiden bygga in systemet som en permanent del av solbilen. Studien avgränsar sig till att utvärdera möjligheten för att skapa ett konceptsystem som är tänkt att lägga grunden för vidareutveckling av framtida studenter.

In this thesis, heating system with hybrid control of the heating intended for houses is proposed. The system is primarily prepared for storage tank and multiple heat sources.

The focus of this thesis is development of an electronic subsystem for reduced gravity impact simulator. The research part of this thesis firstly covers methods used for simulation of microgravity or reduced gravity and compares them. Another part of research focuses on three selected potential approaches to creating the electronic subsystem for this device. The second, practical, part of this thesis describes the design and development of the electronic subsystem. The foundation of the electronic subsystem is a control unit which has been developed on the basis of an STMicroelectronics microcontroller. Using the control unit, the electronic subsystem measures pressure, position, acceleration and force in the system. Another task of the control unit is control of a stepper motor. Integration of individual elements into the electronic subsystem is described both in terms of software and hardware. Furthermore, a graphic user interface program for PC has been developed as a means to interact with the system. In the final part of the thesis, the operation of the electronic subsystem is described and lastly, the electronic subsystem is evaluated.

This document describes a device capable to determine geographical position thanks to its GNSS module and measure the change of movement with the help of an accelerometer and gyroscope. Outputs of these integrated circuits are combined, data are processed and fused thanks to a numerical integration and mathematical filters. Results are stored on a memory card. The whole development is described from a concept, through the making of the device and software algorithms to the testing of its functions.