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Communication with external devices by I2C bus
Prax, Jakub ; Šebesta, Jiří (referee) ; Frýza, Tomáš (advisor)
This diploma paper deals with the data bus line I2C and a supportive demonstration tool for the subject Microprocessor technology taught at the Radioelectronics faculty. The data bus line I2C is convenient when short-distance data transmission with restricted spatial possibilities is required but high velocity of data transmission is not necessary. The tool is compiled in such a way that enables it to also perform other tasks apart from those dealing with the I2C data bus line. The data bus line in the tool is utilized for transmission of date, time, temperature, data for the D/A converter, data from and to the EEPROM memory and data to 16 bits expander.
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Intelligent monitoring device
Nosek, Zdeněk ; Šteffan, Pavel (referee) ; Kadlec, Jaroslav (advisor)
This master thesis discusses design and realization of a security device for vehicles. This device can determine its actual location, discover unauthorized trespass and send information about this to a distant master system too. This distant master system can show the exact position of the security device on a map. The hardware and software for this security device and the software for the master system are described in this paper.
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Industrial state indicator
Růžička, Zdenek ; Štohl, Radek (referee) ; Bradáč, Zdeněk (advisor)
Diploma work deals with industrial display systems, indicators and their proposal. These systems are used everywhere that is necessary to mediate transmission of information. Own proposal of indicator is very specific and depends on given application and used display. In practice there is possible to use a few types of displays but in this diploma work there are used only sedmisegmental and matrix. Common component of proposal is microcontroller. No less significat and important part of the proposal is a choice of interface and communication protocol. The correct choice of hardware that is completed with software we will obtain complete status indicator.
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Temperature monitoring unit
Martínek, Jaroslav ; Kovář, Jan (referee) ; Kolka, Zdeněk (advisor)
Content of the Bachelor Thesis covers design and realisation of an unit for multipoint temperature measuring in cooling and freezing equipments in food stores and shops. As a controlling microcomputer is used an Atmel ATMega128, temperature sensors are realised by DS18S20 digital thermometers, connected via 1-wire bus. Unit can read temperature from 32 temperature sensors, includes memory for measured data, real time clock, Ethernet interface and display with buttons for basic user control. Temperatures are measured periodically with user defined interval, values are stored into internal memory and showed on display. Measured data can also be transferred via Ethernet to clinent PC, where can be viewed in form of table and graphs.
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Design of programmable control system
Trpiš, Michal ; Říha, Kamil (referee) ; Koula, Ivan (advisor)
The goal of diploma thesis is design of programmable control system. This system can be used for regulation of basic parameters in an aquarium. Primary parameters for selection of this device are the price and the easy realization of final device. In first step there are selected parameters, which are needed to control. In second step there is described which kind of sensors can be used for measuring of selected parameters and suitable regulation of necessary parameters. The device is supposed to communicate with PC by USB and this communication is going to be compatible with an old RS-232. Device must be completed with hardware design. Device will be in principle system with real time, that is the reason why device will contain microcomputer. A microcomputer must communicate with other integrated circuit in the device and it supposes to communicate with PC. In specific chapter it will be described, how many different kinds of communication it is possible. For microcontroller it is necessary to create a program, which can figure the measured parameters and it also allows setting up the way how parameters can be regulated. Measured parameters are supposed to storage in the specific memory for the later interpretation. The completely device must be put into a case, which is calculating with a damp place. There must be created a host application for PC. This application suppose to detect if device is connected, figure measured parameters and also allows to set up the way, how to regulate the parameters and display the storages parameters. The application is suppose to run on the operation system created by Microsoft (Windows XP and Windows Vista or later). Diploma thesis contains a problem of the analysis which parameters may be controlled and the way how it can be controlled. There will be selected the sensors, which are suppose to measure and there will be described the basic data transfer and the specifications. It will also contain description of the hardware and software implementation of the device and possibilities of the user’s settings. There will be described the host application and its possibilities. Finally there will be described a functionality of the device and the host application. It will be also imagined some system upgrades for future.
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Digital secondary clock
Hortvík, Martin ; Mašek, Petr (referee) ; Marada, Tomáš (advisor)
The aim of this thesis is to design and implement control electronics for digital secondary clocks. The first part is focused on familiarization with the issue of the use of secondary clocks. Subsequently, the work deals with the design of electronics for generating minute pulses. The first part of the proposal is to ensure the correct voltage size and polarity of pulse. The exact timing pulses are provided by a pair of control circuits, Atmega8 microcontroller and RTC. The last part describes the procedure of realization of electronics by making schema, design and manufacture PCB, circuit revive and the implementation of the module into case.
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RFID acces system realization
Mikšíček, Pavel ; Jančík, Stanislav (referee) ; Marada, Tomáš (advisor)
This bachelor thesis deals with possibilities of using RFID technology in intelligent buildings. The first part of thesis describes main parts of the technology, principle functions and gives examples of applications in various fields. The second part deals with selection suitable RFID technology on frequency 125 kHz for manufacture the functional prototype of the device, design hardware for realization and discusses security. There is a detailed description of device functions. In the last part thesis describes the implementation process from drawing schematics to design and manufacture of printed circuit boards and testing prototype. The knowledge gained in the creation of this work are summarized in the conclusion.
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Design and realization of teaching instrument
Pučegl, Pavel ; Krček, Petr (referee) ; Marada, Tomáš (advisor)
Gradual wear and growing dissatisfaction with current panels for purposes of teaching the course „Logical control and programmable controllers“ has lead the Institute of Automation and Computer Science at Brno University of Technology to a decision to establish a new educational tool „LOGIK“. The tool is intended to facilitate practical verification of knowledge gained by students during this course. Students will have access to this device and will carry out various practical projects concerning combinational and sequential circuits. The general objective of this thesis is to design and subsequently construct this educational device so that is could be fully utilized during the course in near future.
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Temperature Measurement with Microcontroller Aid
Harčár, František ; Holý, Miroslav (referee) ; Zuth, Daniel (advisor)
The thesis focuses on possibilities how to use inexpensive microcontrollers for temperature measurement. The designed module is appropriate both for laboratory curriculum, as well as for application in automation industry. A brief introduction is followed by a general explanation of the notion „measurement“ and a measurement history overview. Afterwards, there is a focus on history and development of temperature measurement and types of applied sensors. Conseguently, there is the thesis itself , its description, principles, connection schneme and measurement methodology. Finally, the thesis regards its commitment and findings.
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Educastion kit for working with microcontrolers AVR Atmel
KUBEŠ, Miroslav
This thesis deals with design and production of teaching kits with Atmel AVR microcontroller. This kit includes a processor board and modules, which will connect to the board. It describes the equipment needed for software design and programming of microcontroller and technological processes to create a kit. Also, it will find the basic theoretical knowledge to work with the ATmega8535 microcontroller. Kit along with a disc on which are recorded all the diagrams, pictures and programs created by me, will be attached to the thesis.
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