Search

V diplomskem delu smo predstavili razvoj programske opreme v okolju Arduino. Uporabili smo razvojno ploščo NodeMCU, ki temelji na mikročipu ESP8266 za vzpostavitev povezave z internetom. V nalogi je opisano pošiljanje in obdelava podatkov na spletni platformi ThingSpeak, ki shranjuje naše podatke. Platforma omogoča, da nad podatki sprožimo spletno zahtevo na spletno platformo IFTTT, ki nam omogoča prikaz obvestil na mobilni napravi. This thesis presents the software development in Arduino environment. We used the NodeMCU development board, which is based on ESP8266 microchip for the internet connection. The task discribes sending and processing data on the ThingSpeak online platform that stores our data. The platform allows us to trigger an online request to the IFTTT online platform, which allows us to display notifications on a mobile device.

V tem diplomskem delu smo sprva izpostavili pravila, ki v Sloveniji veljajo na področju brezpilotnih letalnikov. Razložili smo njihovo delovanje in tehnične podrobnosti. V zadnjem delu smo predstavili čip ESP8266 NodeMCU (vozlišče z mikrokroprocesorsko centralno enoto) in kako ga učinkovito uporabiti za motenje komunikacije dronov. Korak za korakom smo dokazali, kako lahko učinkovito in poceni pretvorimo ESP8266-modul v motilnik komunikacije Wi-Fi. Sledi opis testiranja, pri katerem smo poskušali motiti komunikacijo brezpilotnega letalnika. In this diploma work we first highlight the rules that apply in the field of drones in Slovenia. We explain their functionality and technical details. In the last part, we present an ESP8266 NodeMCU (Node-Microcontroller Unit) chip and how it can be effectively used to disrupt drone communication. We then demonstrate step by step how we can efficiently and inexpensively convert ESP8266 NodeMCU into a Wi-Fi communication interrupter (deauther). This was followed by testing where we tried to disrupt the communication of the drone.

Večina čebelarjev pri svojem delu še vedno uporablja stare in preverjene metode čebelarjenja. Za spremljanje čebelje aktivnosti morajo pogostokrat posegati v panje in fizično pregledovati stanje čebeljih družin s tem, da iz panja vzamejo in pregledajo vsako satnico posebej. Z vsakim takim posegom čebelar vznemirja čebele in posledično vpliva na njihovo zdravje in donos. Namen naše naloge je, da bi razvili prototip sistema za spremljanje aktivnosti čebel, ki bi bil v pomoč čebelarju pri vsakdanjih opravilih. S pomočjo sistema bi čebelar lahko ocenil zdravje družin, aktivnost čebel, zmanjšal posege v panj, ocenil, kdaj so čebele pripravljene na roj, opazil in preprečil čebelje rope. Izdelani prototip je predlog za enostavno spremljanje temperature v panju, mase panja ter temperature in vlage v okolici. Sistem je sestavljen iz dveh temperaturnih senzorjev, enega vlagomera, tehtnice, mikrokrmilnika ESP8266 z brezžično povezljivostjo in strežnikom z bazo podatkov. Vsi podatki so enostavno prikazani na spletni strani do katere ima čebelar dostop v svojem lokalnem omrežju. Z razvitim sistemom smo želeli predstaviti predvsem enostavno in relativno poceni rešitev za spremljanje aktivnosti čebel, ki čebelarju omogoča boljšo gospodarnost s čebelami in manj stroškov. Sistem ni namenjen za raziskovalne namene temveč za informativno rabo v čebelarstvu. Prototip je bil preizkušen v sezoni 2019, ki pa je bila za nas slaba čebelarska sezona. V obdobju šestih mesecev nismo posneli nobenega roja, ropa, pomora čebel in podobnih negativnih aktivnosti, ki bi jih lahko s sistemom preprečili. Zaradi pomanjkanja podatkov je v magistrski nalogi prikazan koncept obdelovanja podatkov in razvoj sistema. The majority of beekeepers are still using old and verified methods of beekeeping. For monitoring bee activity, they must often intrude on hives and physically check the condition of the colonies by taking out and checking every frame. With every interference a beekeeper upsets bees and consequently influences their health and yield. The assignment of thesis is, to develop a prototype for monitoring bee activity which can be used to simplify beekeeper’s everyday tasks. With the help of system, a beekeeper could assess the health of families, activity of bees, reduce intrusions on hives, estimate when bees are ready to swarm, notice and prevent bee robberies. This prototype enables temperature monitoring in a hive, it's mass, and surrounding temperature and moisture. System consists of two temperature sensors, one hygrometer, weigh scale, microcontroller ESP8266 with wireless connectivity and a server with database. All data are displayed locally on an accessible web page. With this system we wanted to present mainly a simple solution for bee activity monitoring, which enables a beekeeper to be more economical. The system is not intended to be used for research purposes but only for informative use in beekeeping. The prototype was tested in season 2019 which was a bad beekeeping season for us. In a period of six months, we recorded no swarming, robbery, slaughter of bees and similar negative activities, which could be prevented with the system. Because of a lack of data, a concept of data processing and system development is showed in this master's thesis.

Projekcijsko mapiranje na neravne površine, znano tudi kot video mapiranje ali projiciranje, je dokaj stara tehnika, ki v zadnjih nekaj letih zaradi dostopnosti strojne opreme doživlja razcvet. Gre za projiciranje video vsebin na objekt s ciljem potopljenosti (angl. immersion) gledalca. Za celostno izkušnjo sta pomembna tudi zvok in interaktivnost. V diplomski nalogi v prvi polovici predstavim zgodovino tehnike in teoretično ozadje, v drugi polovici pa potrebno opremo in postopke izvedbe izpeljanega projekta, katerega cilj je bil ustvariti inštalacijo z vsemi tremi komponentami - video, zvok in interaktivnost. Projection mapping on uneven surfaces, also known as video mapping or projection, is a fairly old technique that has been flourishing over the last few years due to the availability of hardware. It is a projection of video content onto an object with the aim of immersion of the viewer. Sound and interactivity are also important for the viewer’s overall experience. In the first half of the diploma thesis the history of the technique and its theoretical background are presented. The second half is focused on the necessary equipment and procedures for the execution of the projection mapping project which was developed for this thesis. The aim was to create an installation with all three components - video, sound and interactivity.

V magistrski nalogi predstavljamo razvoj aplikacije in arhitekture za zagotavljanje varne in zasebne komunikacije med napravami interneta stvari in spletnimi aplikacijami. Cilj te naloge je zasnovati, pripraviti in ovrednotiti takšno arhitekturo, ki bo zgotavljala varnost in zasebnost uporabnika in njegovih osebnih podatkov, ki se prenašajo med napravami ter razviti demonstracijsko aplikacijo na tej arhitekturi. V teoretičnem delu naloge se ukvarjamo z internetom stvari, arhitekturnimi osnovami in gradniki, začasnimi (ang. Ad Hoc) omrežji, zagotavljanju varnosti naprav in različnimi aplikacijskimi protokoli za internet stvari. Po študiji področja je določenih osem protokolov, ki so uporabni za tovrstne aplikacije, med katerimi je za najbolj primernega izbran protokol spletnih vtičnic (ang. WebSocket). Rešitev z uporabo WebSocket protokola, je predstavljena v praktičnem delu naloge. Predstavlja relativno novost, ko gre za komunikacijo med napravami in spletnimi aplikacijami, saj za delovanje ni potreben kompleksen spletni strežnik za zbiranje podatkov, ampak je dovolj posrednik (ang. broker), ki je enostaven program na strežniku. Namen posrednika je povezava naprav v aplikacijsko omrežje. Tovrstna arhitektura je tudi eden od primerov, ki omogoča zagotavljanje začasnih aplikacijskih omrežij, ki niso odvisni od kompleksne infrastrukture in temeljijo na enostavnem komunikacijskem protokolu ter so preproste za razvoj. Za demostracijo arhitekture razvijemo tri različne gradnike: posrednik, mikrokrmilniško napravo in spletno aplikacijo. Pri razvoju pa je bilo potrebno določiti tudi sporočilni protokol za komunikacijo naprav s posrednikom in med seboj. Koncept arhitekture in posrednik predstavljata osnovo, na kateri lahko v prihodnosti deluje katerikoli sistem, ki mora zagotavljati varnost in zasebnost. In this master thesis we present the development of architecture and application that enables secure and private communication of Internet of Things (IoT) devices and web applications. The aim of this thesis is to design, develop and evaluate an architecture that would allow users and their data complete security and privacy when using an application built on this architecture. In the theoretical part of this thesis we present Internet of Things, basic architecture and building blocks, Ad Hoc networks, IoT device security and different application layer protocols used in IoT. After the field introduction, eight protocols are explained that are used for these kinds of applications. WebSocket (WS) is chosen as the most appropriate. A solution using the WS protocol is presented in the practical part of this thesis. It represents a relatively new approach to using WebSocket protocol when connecting devices and applications, since there is no need for advanced server for data acquisition. The only thing needed is a simple broker that runs on any computer hardware as simple program, broker connects devices on this application network. This architecture is one that allows the workings of an Ad Hoc network and applications that do not require advanced network infrastructure and are also simple with regard to the development and communication. To demonstrate this architecture, we develop three devices: a broker, an IoT microcontroller device and an IoT Web application. For architecture to work properly a communication protocol needed to be developed, one that would work with the broker and between application devices themselves. This architecture concept and broker represent the backbone to any future system or application that requires security and privacy.

Cilj magistrskega dela je izdelava testirnega vezja, ki lahko preko spleta opravi potrebne teste na zasilni svetilki. To vezje služi za test funkcionalnosti in test baterije zasilne svetilke, kar narekuje zakon. Poda nam rezultate, s katerimi lahko ob njenem nedelovanju ocenimo, za kakšno vrsto napake gre. Pri nalogi smo uporabili zasilno svetilko podjetja Beghelli, model Aestetica, ki uporablja NiCd-baterijo. Testirno vezje je prototipne narave in je namenjeno vgradnji v ohišje zasilne svetilke. Napaja se iz električnega omrežja in sodeluje z glavnim vezjem, ki je že prisotno v zasilni svetilki. Namen glavnega vezja je polnjenje baterije in pretvorba napetosti na ustrezno napetost za vklop sijalke. Glavni del testirnega vezja sestavlja platforma ESP8266 NodeMCU, ki je namenjena krmiljenju komponent pri samem testu in povezovanju vezja v brezžično omrežje. Naprava je preko omrežja WiFi v komunikaciji s posrednikom preko protokola MQTT. Testiranje je razdeljeno na kratek in dolg test. Kratki test traja nekaj sekund in vrne rezultate o funkcionalnosti svetilke, delovanju sijalke in napetosti baterije, katero primerja z njeno minimalno potrebno napetostjo. S tem oceni njeno trenutno stanje. Daljši test nam poda rezultat o delovanju sijalke in največjo možno kapaciteto baterije, s katero določimo vrednost SoH. Napetost baterije se izmeri s pomočjo napetostnega delilnika in analognega vhoda platforme. Za meritev kapacitete baterije pa uporabimo integrirano vezje LTC4150, ki meri količino pretečenega naboja. LTC4150 količino pretečenega naboja pretvori v impulze. Ko je baterija popolnoma napolnjena, lahko z njeno popolno izpraznitvijo določimo njeno kapaciteto. Baterijo izpraznimo skozi uporovno breme in merimo naboj, ki priteče iz nje. S tem dobimo njeno največjo kapaciteto in vrednost SoH. Zaradi ustreznega toka praznjenja se čas daljšega testiranja močno podaljša. The aim of the Master's thesis is to make a test circuit, which can carry out the necessary emergency light tests via the Internet. The circuit can perform the functional and battery tests of the emergency light – both required by law. With the obtained results, one can find out the type of error in case of the emergency light failure. For the thesis, the Beghelli's emergency light, model Aestetica, was used. The light uses NiCd battery. The developed test circuit prototype is meant to be installed inside the housing of the emergency light. It is powered from the emergency light power supply, i.e.: the mains. The test circuit cooperates with the emergency light circuitry that charges the battery and converts the voltage for the light bulb. The main part of the test circuit is the ESP8266 NodeMCU platform. It is designed to control the components during the test and to connect the circuit to the wireless network. Using WiFi, the device is connected to the broker via the MQTT protocol. The test circuit can perform a short or long test. The short test lasts only for a few seconds. The functional test of the emergency light is performed, that is the light bulb and battery voltage are tested. Thus, the basic assessment of the emergency light state can be quickly obtained. The battery voltage is measured using a voltage divider and the analog input of the ESP8266 NodeMCU platform. Besides the basics, the long test also measures battery capacity and determines its SoH value. The integrated circuit LTC4150 is used. Fully charged battery is discharged while the LTC4150 measures the amount of elapsed charge and converts it into pulses. A chain of resistors is used for that purpose. The measurement yields an accurate value of the current battery capacity and consequently its SoH value. Since the discharging current must not be too large, the duration of the long test can be considerable.

Odprtokodno razvojno okolje Arduino IDE nam poleg prenosa programov na mikrokontroler preko žične serijske povezave nudi tudi način prenosa programov preko omrežja z uporabo protokola OTA (angl. Over The Air). Ta protokol pa ne podpira pošiljanja testnih izpisov iz mikrokontrolerja v serijsko konzolo, saj je ta funkcionalnost vezana na serijsko povezavo, ki se z uporabo OTA izgubi. Cilj diplomske naloge je bil preusmeriti testne izpise preko serijske povezave v testne izpise preko omrežja. Najprej smo se s pregledom izvorne kode seznanili s privzetim postopkom pošiljanja testnih izpisov preko serijske povezave ter z delovanjem serijske konzole okolja Arduino IDE. Nato smo razvili Arduino knjižnico za preusmeritev testnih izpisov in nadgradili razvojno okolje Arduino IDE tako, da te testne izpise preko omrežja sprejme in prikaže na spremenjeni serijski konzoli. Diplomska naloga vsebuje opis izvorne kode in delovanja naše knjižnice, opis naših sprememb okolja Arduino IDE ter preprost primer uporabe naše knjižnice. Za testiranje Arduino knjižnice smo uporabili razvojno ploščico WEMOS D1 mini, ki temelji na mikrokontrolerju ESP8266. Pri razvoju smo uporabili programska jezika C++ in Java. The open-source Arduino Integrated Development Environment allows the programmer to not only upload programs to a micro controller with a wired serial connection, but also over the network with the use of Over The Air programming, shortened to OTA. This protocol, however, does not support the sending of debug output from the micro controller to the serial console, because this functionality depends on a serial connection that is lost when using OTA. The goal of this diploma paper was reroute debug output over serial connection to debug output over network. We began by reviewing the source code and familiarized ourselves with the default process of sending the debug output over serial connection and the workings of Arduino’s serial console. Afterwards we developed an Arduino library which reroutes debug output over the network and then we modified the Arduino IDE to allow said debug output over network to be shown in its modified serial console. This diploma paper includes the description of our library’s source code, its functionality, the description of our modifications to the Arduino Integrated Development Environment as well as a simple use case of our library. Our library was tested on WEMOS D1 mini development board, which is based around the ESP8266 micro controller. In the course of development C++ and Java programming languages were used.

Avtomatizacija obstoječe hiše je lahko zahtevna s stališča vgrajevanja tipal in sprememb v obstoječi napeljavi. To težavo lahko rešimo z uporabo brezžičnih vozlišč, ki jih namestimo v vsak prostor posebej in tako na enostaven ter učinkovit način pridobimo vpogled in nadzor nad celotnim objektom. Cilj diplomske naloge je celostni razvoj vozlišča, ki komunicira z brezžičnim omrežjem Wi-Fi. Izdelano je bilo vezje, ki temelji na procesnem modulu ESP8266, sprogramiranem v jeziku C++. Vozlišče za komunikacijo z osrednjim sistemom uporablja protokol Mqtt. Osrednji sistem je implementiran s pomočjo programskega dodatka Home Assistant na računalniku Raspberry PI. Vozlišče omogoča zaznavanje temperature, vlage, gibanja, osvetljenosti in krmiljenje običajne hišne naprave pri napetosti 220 V. Poleg vezja je bila izdelana tudi programska oprema, ki poskrbi za celotno delovanje in nastavitve ob zagonu. Za komunikacijo z uporabnikom je bil izdelan preprost in pregleden uporabniški vmesnik, v katerem lahko uporabnik upravlja sistem in spreminja njegove nastavitve. V zaključku je prikazano še praktično delovanje vozlišča z izvedbo vseh potrebnih nastavitev ter povezave z osrednjim sistemom. The transformation of an old house into a smart home can be time- and money-consuming, especially due to the integration of new sensors and modifications to the existing electrical wiring. However, this problem can be easily and effectively solved by installing wireless node devices in separate areas to enable monitoring and control of the whole building. The aim of this thesis is to develop a multisensor node connected to Wi-Fi network. The result of presented work is an electronic circuit board functioning as a wireless node. The main part is an ESP8266 microcontroller module programmed in C++ language. The node is connected to the central system using the Mqtt protocol. The central part of the system is implemented using program Home Assistant running on Raspberry PI computer. The node features the ability to measure temperature, humidity, movement, light level, and the ability to control a common household 220 V device. In addition to the hardware, the complete software was developed to support a complete node operation and setup procedure. Communication between the user and the node is carried through a user-friendly interface that allows the user to easily control the node’s operation and settings. Lastly, a complete practical case of the node’s integration in the home automation system is presented.

V diplomskem delu bomo predstavili uporabo mikrokrmilnika in nadzorovanje modula ESP8266 ter krmiljenje električnih porabnikov preko svetovnega spleta. Opisani so elementi modula za krmiljenje električnih porabnikov, njihova medsebojna povezava in predstavljen končni modul. Opisan je tudi način, kako modul prilagoditi za rabo drugačnih potreb. In this thesis we will present a possibility on how to monitor and control electrical appliances over the world wide web with the use of a microcontroler unit and an ESP8266 module. All the elements of the remote control module are described, as well as their interconnections. The final module is presented in a way, that you can implement some adjustments and change the module's behaviour.

Tema diplomske naloge je razvoj interaktivnega glasovalnega sistema s strojnim in spletnim vmesnikom, ki za delovanje ne potrebuje povezave v internet in temelji na odprtokodnosti. Za izdelavo programskega vmesnika smo uporabili obstoječe odprtokodne rešitve in jih prilagodili potrebam diplomskega dela. Razvoj sistema je potekal na računalniku z operacijskim sistemom Ubuntu 14.04 LTS 64-bit (Trusty Tahr) Desktop, na katerem teče strežnik glasovalnega sistema. Strojni del, ki se uporablja v namenskih glasovalnih enotah, temelji na odprtokodni platformi NodeMCU, ki za delovanje uporablja mikrokontroler ESP8266. Zbiranje glasov se vrši prek namenskih glasovalnih enot in prek spletnega vmesnika – spletna glasovalna enota. Glasovalne enote skrbijo za zajem glasov glasovalcev in posredovanje prejetih podatkov prek brezžične povezave na strežnik. Za brezžično povezavo med strežnikom in glasovalnimi enotami skrbi namenski brezžični usmerjevalnik. Strežniški del je razvit v programskem jeziku JavaScript in skrbi za komunikacijo z bazo podatkov Redis, obdelavo zajetih podatkov in vzpostavitev spletnega glasovalnega vmesnika za prikaz vprašanj in rezultatov. Spletni vmesnik glasovalne enote je razvit s pomočjo programskega ogrodja AngularJS kot enostranska aplikacija ter omogoča prikaz vprašanj, dodajanje vprašanj, prikaz vseh odgovorov in prikaz statistike. The topic of this thesis is development of interactive voting system with web and hardware interface. Voting system is open source based and it does not require internet connection for operation. Thesis describes development of software interface, for which we used existing open source solutions and adapted them to the thesis requirements. Development of the system was done on computer with operating system Ubuntu 14.04 LTS 64-bit (Trusty Tahr) Desktop, which is running a server for voting system. Hardware which is used in the dedicated voting units is based on open source platform NodeMCU. NodeMCU runs on microcontroller ESP8266. Votes are collected with dedicated voting units and via web interface – web voting unit. Voting units are responsible for collection of votes and for transmission of received data to server via wireless connection. Dedicated wireless router is responsible for wireless connection between server and voting units. Thesis describes the development of server. It is developed in JavaScript programming language and is responsible for communication with Redis database, processing of acquired data and establishing of web voting interface for displaying questions and results. The web interface of voting unit is developed with AngularJS and operates as “Single page application”. It can display questions, results, statistics and add new questions.

Diplomsko delo obravnava razvoj in izdelavo brezžičnih vhodno/izhodnih modulov ter njihovo integracijo v odprtokoden sistem hišne avtomatizacije openHAB. Celoten sistem hišne avtomatizacije je zgrajen hierarhično, pri čemer centralna enota (računalnik Raspberry Pi 3) s poslanimi sporočili vpliva na delovanje vhodno/izhodnih modulov. Komunikacija med centralno enoto in moduli je izvedena z uporabo brezžičnega Wi-fi omrežja in MQTT-protokola. Centralna enota, na kateri se izvaja sistem hišne avtomatizacije openHAB, mora biti za delovanje priključena v internetno omrežje. S tem je posledično omogočen oddaljen dostop preko mobilne aplikacije do programa openHAB in oddaljeno upravljanje izdelanih vhodno/izhodnih modulov. Diploma work treats development and production of wireless input/output modules and their integration into open source openHAB home automation system. Automation is performed according to the parameters set by user. The whole system has hierarchical structure, meaning that it has central unit (Raspberry Pi 3) which communicates with connected modules through messages. Communication between units is wireless via MQTT protocol. Home automation system openHAB is running on the central unit which must be connected to network. That means user has ability to remotely access the user interface from application which allows him to control his smart home.

V diplomskem delu je predstavljen sistem daljinskega upravljanja krmilnika razsvetljave s protokolom DMX preko brezžičnega omrežja. V sistemu se s pomočjo platforme WeMos krmili diode RGB LED. Na začetku so predstavljeni protokoli, ki se uporabljajo za krmiljenje razsvetljave, njihova primerjava ter podroben opis protokola DMX. V naslednjem poglavju je opisana arhitektura sistema, v kateri so opisani tudi pomembni ukazi programske kode, brezžična komunikacija in povezava vseh komponent sistema. Nato je razloženo delovanje izdelanega sistema, ki je opisano po postopkih programske kode, in tudi prikazano na primeru praktične izvedbe, ki mu sledijo napisani rezultati testiranj sistema in optimizacija. The diploma thesis presents remotely managed DMX lighting controller using wireless network. With the help of WeMos platform, it enables the system to control RGB LEDs. The beginning of the thesis presents protocols that are used in stage lighting, compares them and gives a detailed description of the DMX protocol. The following chapter describes the architecture of the system, which includes descriptions of important parts of source code, wireless communication and connection between all components of the system. Next it presents the functioning of the final product and describes it through steps of source code. Functioning is also shown on a practical example and at the end it is followed by results of tests and optimisation of the system.

Diplomsko delo opisuje področje mikrokrmilnikov in razvoj rešitve za kontrolo pristopa. Rešitev deluje na principu oddaljenosti naprave od senzorja, preko brezžične tehnologije Bluetooth, ki ga imamo danes že skoraj v vsaki napravi. The thesis describes the scope microcontrollers and development solutions for access control. The solution operates on the principle of the distance from the device sensor via Bluetooth wireless technology that we have today in almost every device.

V diplomskem delu opisujemo razvoj in implementacijo brezžične tehtnice na platformi ESP8266. Meritve zajemamo s pomočjo štirih merilnih celic in analogno-digitalnega pretvornika HX711. Uporabniku meritve prikazujemo v obliki spletne strani, ki gostuje na platformi ESP8266 in je dosegljiva znotraj lokalnega omrežja WiFi. Hkrati meritve pošiljamo na zunanji strežnik in jih zapisujemo v podatkovno bazo. S spletno aplikacijo na zunanjem strežniku grafično predstavimo meritve skozi čas. Thesis discusses development and implementation of wireless weighting scale on ESP8266 platform. Measurements are taken with the help of four load cells and analogue-digital converter HX711. Data is shown to a user in a form of website, which is hosted on ESP8266 platform and is available within the local WiFi network. Data is also sent to web server hosted outside of the local network, where it gets saved to a database. The web application is used to visualize the saved data with a graph showing weight over time.

V diplomskem delu predstavimo koncepte komunikacije in upravljanja naprav s pomočjo infrardeče svetlobe. Preučimo obstoječe standarde za pošiljanje in prejemanje informacij s pomočjo digitalno kodiranih pulzov infrardeče svetlobe in zasnujemo ter izdelamo univerzalni daljinec, ki se lahko prilagaja različnim tipom in protokolom krmiljenj. Pošilja ustrezen infrardeči kodiran signal, za katerega lahko vzorec prebere iz obstoječega daljinca ali pa ročno vnesemo želeno kodo. Interakcija z daljinskim upravljalnikom poteka s pomočjo spletnega vmesnika preko omrežja WiFi. In this diploma thesis we introduce concepts of communication and control of devices via infrared light. We consider existing standards for sending and receiving information with the help of infrared light and plan and develop a universal remote control that can adjust to different communication types and protocols. It sends appropriate infrared coded signal for which the structure can be retrieved as a sample from existing remote control or entered manually. Interaction with remote control is implemented through a web page accessed via WiFi.

V diplomskem delu je predstavljena zasnova sistema za merjenje temperature in relativne vlage s pomočjo modula ESP8266 z brezžičnim spletnim dostopom do rezultatov meritev. Za merjenje temperature in vlažnosti skrbi digitalni merilni senzor DHT11, modul ESP8266 pa poleg osnovnih funkcij, potrebnih za prenos podatkov, zagotavlja tudi preprost strežnik za konfiguriranje. Sestavni deli naloge so analiza področja, modul ESP8266, serijski vmesnik FTDI, protokoli za povezovanje in ostala strojna oprema. Na koncu je predstavljena tudi izdelava namizne aplikacije s pomočjo razvojnega okolja Arduino. In this thesis the concept of the system for measurement of temperature and humidity based on ESP8266 module is presented that provides wireless Web access to measurement results. A digital sensor DHT11 is used to measure temperature and humidity while the ESP8266 module provides, among the basic functions of wireless data access, also a simple configuration server. The thesis includes an analysis of the field, and describes the module ESP8266, the serial interface FTDI, the protocol for connection and other required hardware. At the end, the creation of the application using Arduino development environment is presented.