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I2C Bus to RS232 Bus Convertor
Votava, Martin ; Marvan, Aleš (referee) ; Orság, Filip (advisor)
The main goal of this Bachelor's thesis is to create I2C bus to RS232 bus convertor. Using I2C bus the convertor drives 8bit I/O expander. In theoretical part buses I2C and RS232 are described along with PCF8574. There is also mentioned selection appropriate microcontroler and design of comunication protocol. Practical part is dedicated to creating control program for microcontroler, appropriate comunication protocol processing and convertor testing. There are also described some auxiliary products and program testing.
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Autonomous programmer of AVR microprocessors with Ethernet connectivity
Verner, Lukáš ; Daněček, Vít (referee) ; Kravka, Martin (advisor)
he main purpose of this semestral thesis is to get to know programming of Atmel AVR microcontroller, working with SD/MMC cards, working with ethernet (TCP/IP) to create a standalone programmer of AVR microcontroller with ethernet connectivity. The first part deals with the questions of programming theory of memories inside microcontrollers and description of programming algorithm. The most used programming method is called „In System Programming“ - ISP. This method provides easy and fast manipulaton. Concept of this programmer is designed for this ISP method. In this thesis is too explain how to work SD/MMC card and file systém FAT16. This knowledges are necesary to store binary program inside standalone programmer. In final part and in attachments there is hardware design, electrical scheme, bill of materials, printed circuit board.
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Automated control of aquarium operation
Kejzlar, Radim ; Šteffan, Pavel (referee) ; Háze, Jiří (advisor)
This master´s thesis describes complete design and implementation of an automated system for the control of a common freshwater tropical aquarium with a keyboard and display. The thesis discusses the applicability of equipment in today's aquaristics of freshwater tropical aquariums with respect to the history and market offer. Thesis describes the complete design of the electrical, program and mechanical parts of the resulting system and electrically controllable automatic feeder, communicating with the system.
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Fishing alarm in LPD band
Dufek, Ivo ; Šebesta, Jiří (referee) ; Frýza, Tomáš (advisor)
The main objective of this project is analysis, design and construction of three channel wireless extension box for electronics bite alarms in LPD band. Wireless ex-tension box set consist of transmitter and receiver. Both of them are based on Aurel hybrid modules and Atmel AVR microcontrollers. Microcontroller in transmitter media-tes processing input data, their coding, securing and transmitting. At the receiver side microcontroler has to interpret data from hybrid module and start correct visual and acoustic signalization. Construction of this extension box set is described in two independent chapters. The solution contains brief introduction, description of each function block, some im-portant components, general schematics, design of PCB and description of the firm-ware. The last chapter is common for transmitter and receiver and describes recom-mended antennas.
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Modular Simulator of Microcontroller
Vosyka, Pavel ; Janoušek, Vladimír (referee) ; Peringer, Petr (advisor)
This thesis deals with design and implementation of new simulator with possibility of supporting multiple types of microcontrollers and has its own graphical user interface. The user interface was implemented using the QT graphical framework. Support for the ATmega328p microcontroller was added to the simulator using the simavr library. Three electrical circuits were modeled as microcontroller surroundings, these are switch, LED and RC circuit. The simulator was implemented in C++ and its functionality was verified. The result of this work is a functional simulator supporting simulation of microcontroller ATmega328p.
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Multimedial education interface for programming and debugging software for AVR microcontrollers
Šrajla, Josef ; Sajdl, Ondřej (referee) ; Pavlík, Michal (advisor)
Diploma thesis is concerned with programming of AVR microprocessors. Main task was development of compact environment where user can learn methods necessary for successful programming of microprocessor. It was necessary to make an application enabling interactive simulation of processor to reach this goal. User-friendly control, simplicity and low hardware demands are main advantages of this application. Only computer with internet connection is demanded. Complicated installation, usual for similar products, is avoided.
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Wireless safety appliance
Čapek, Lukáš ; Kováč, Michal (referee) ; Kolouch, Jaromír (advisor)
The purpose of this project is to secure an object, for example bicycle, buggy,merchandise. Protecting device consists of a sensor unit and a pager unit. Both of these units contain a transceiver which works in ISM band. Operation circuits drive microprocessor AVR with low power technology because of possible battery supply. Sensor unit is monitoring the state of sensors and battery discharging. This unit can use accelerometer sensor and two contact sensors. The pager unit indicates alarm, the state of battery in both units and signalizes loss of connection.
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Metal detector for industrial use
Stehno, Rostislav ; Friedl, Martin (referee) ; Szabó, Zoltán (advisor)
The goal of this project is explore and study the ways of metal detecting and create a metal detector for industrial use. During a project development, the device size and user easy interface were the basic requirement. As a visual device was chosen LCD touch display, which is very important as a user-friendly interface. For math calculations and right function of device will be implemented microcontroller from Atmel corporation. As a data storage will be used a flash memory with 16MB of size. When the device were inventing, a lot of methods were studied and the impulse detect method were chosen which is the most perspective way of metal detecting. Device will communicate with PC trough a USB port. The device will have a battery which allows device to run for a few hours. The prototype of PCB were developed. Few mistakes has been discovered, while the device were constructed, but they were solved successfully.
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Image processing algorithms in eight-bit microcontroller
Rébl, Miroslav ; Fajmon, Petr (referee) ; Fedra, Zbyněk (advisor)
The aim of master thesis was to investigate a simple camera and processor Atmel AVR unit implementation. Thesis describes how to get image from C3088 module and management over the bank of camera registers. Work includes limitation draft for this way of processing the information. Thesis also solves an exemplary model for object recognition using this implementation.
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