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Rotary controller for PC
Olivík, Lukáš ; Horák, Martin (referee) ; Kolka, Zdeněk (advisor)
This thesis describes the Universal Serial Bus and the development of a simple HID peripheral device, connecting a rotary encoder as a control element to the host computer. This paper includes an overview of suitable microprocessors, circuit design, PCB and mechanical design, creation of a firmware for the selected microprocessor, and programming of demonstration software on the PC’s side.
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Microsolder controlled by microprocessor
Stavělík, Jiří ; Petyovský, Petr (referee) ; Macho, Tomáš (advisor)
This thesis describes circuit design and realization of the power and control system, which can hold constant temperature of solder tip. Control system is based on microcontroller Atmega328 of company Atmel, part of the work is the implementation and debugging control software. This solution allows to enter temperature by rotary encoder and to show the real temperature on LCD displey. This hardware also detects disconnection of solder tip, acoustic signals when the required temperature is reached and it holds last set temperature.
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Microprocessor control unit with frequency synthesizer for SW radiostation
Povalač, Aleš ; Fuchs, Michal (referee) ; Šebesta, Jiří (advisor)
The thesis is focused on the development of a radioamateur short-wave transceiver. The basic functions, features and parameters are described in the introduction. The bandplan and appropriate types of emission are also included in the introductory part. The frequency synthesis module is discussed in the second part of the document. Emphasis is placed on the direct digital synthesis method (DDS) using modern Analog Devices circuits. The proposed DDS module includes a high-speed clock source. The description of an intermediate frequency module with a demodulator is also placed there. The final part in devoted to the design of a transceiver control panel with a graphical display, a keyboard and a rotary encoder. The firmware for an ATmega128 microcontroller is described in detail at the end of the thesis.
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Calibration of angular encoder
Šindelář, Michal ; Klusáček, Stanislav (referee) ; Beneš, Petr (advisor)
This master’s thesis deals with calibration of incremental encoders. Introduces basic principles and terms in the field of rotary encoders and its calibration. The first part describes angular displacement sensors. Especially it focuses on optoelectrical incremental encoders. It also includes market research of very high-accuracy encoders. The second part contains description of precision calibration techniques with uncertainty to the thousandth of an arc-sec level. In the last part, the development of a calibration stage is presented and consequently the error map of an encoder is obtained.
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Teaching guide for the ATMEL development board
Navrátil, Petr ; Hadinec, Michal (referee) ; Friedl, Martin (advisor)
Bachelor’s thesis is focused on developing applications for the developing board with microcontroller ATMEL (ATmega16). Bachelor’s thesis describes the microcontroller including a description of hardware components and control registers. This book describes the various peripherals on the developing kit with programming examples. Simple modules have been created for the developing board, which could be used to program complex project and easy aplications. On these modules are periphery as matrix keyboard, encoder, real time clock and circuit L293D for controling DC motor with PWM signal. The AVR Studio version 4.18 is described and used here as a programming software. This work should serve as a guide about ATMEL AVR ATmega series for beginning or advanced programmers. Examples of individual programs are a part of this work.
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Calibration of angular encoder
Šindelář, Michal ; Klusáček, Stanislav (referee) ; Beneš, Petr (advisor)
This master’s thesis deals with calibration of incremental encoders. Introduces basic principles and terms in the field of rotary encoders and its calibration. The first part describes angular displacement sensors. Especially it focuses on optoelectrical incremental encoders. It also includes market research of very high-accuracy encoders. The second part contains description of precision calibration techniques with uncertainty to the thousandth of an arc-sec level. In the last part, the development of a calibration stage is presented and consequently the error map of an encoder is obtained.
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Microsolder controlled by microprocessor
Stavělík, Jiří ; Petyovský, Petr (referee) ; Macho, Tomáš (advisor)
This thesis describes circuit design and realization of the power and control system, which can hold constant temperature of solder tip. Control system is based on microcontroller Atmega328 of company Atmel, part of the work is the implementation and debugging control software. This solution allows to enter temperature by rotary encoder and to show the real temperature on LCD displey. This hardware also detects disconnection of solder tip, acoustic signals when the required temperature is reached and it holds last set temperature.
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Teaching guide for the ATMEL development board
Navrátil, Petr ; Hadinec, Michal (referee) ; Friedl, Martin (advisor)
Bachelor’s thesis is focused on developing applications for the developing board with microcontroller ATMEL (ATmega16). Bachelor’s thesis describes the microcontroller including a description of hardware components and control registers. This book describes the various peripherals on the developing kit with programming examples. Simple modules have been created for the developing board, which could be used to program complex project and easy aplications. On these modules are periphery as matrix keyboard, encoder, real time clock and circuit L293D for controling DC motor with PWM signal. The AVR Studio version 4.18 is described and used here as a programming software. This work should serve as a guide about ATMEL AVR ATmega series for beginning or advanced programmers. Examples of individual programs are a part of this work.
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