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Device control based on touch-sensitive capacitance-sensing circuits
 Matula, Rastislav ; Kubánek, David (oponent) ; Hanák, Pavel (vedoucí práce)
The primary objective of this master’s thesis is to discuss a design and development of proximity touch control panel, which contains two simulated buttons and one rotary slider simulating functions of the potentiometer using specialized sensor controllers. The first part is describing functions and different technologies used to create touch sensors. It also introduces its usage in practice, advantages and disadvantages of different technologies which provides the readers with basic theoretical knowledge and introduction into the touch sensors. The second part as follows describes the definition of Integrated Circuits MPR083 and MPR084, outline of the features and methods of their functions. Displays internal connection of these circuits and describes forms of the serial communication with microcontroller connected to I2C bus. In these part there are in details described individual internal registers of these Integrated Circuits and theirs typical setups. It shows how it is possible to use the external interrupts and examples of their practical application. In the last chapter of these thesis is described the layout of the individual modules and construction of the whole designed device. The work is introducing two different concepts of programming the microcontrollers and consequently also construction of the appropriate ISP and JTAG programmers. It also introduces construction of the display units for visual feedback with the user and approach of the communication for the control LED matrix and graphical LCD display. The main part of this thesis is the construction of the control circuit, which includes key part, microcontroller ATmega16. It also presents the description of the program written in development environment AVR Studio in programming language C and his specific functions. In conclusion of the thesis are listed real measured behavior of the communication on I2C bus and their description.
Úplný záznam
Device control based on touch-sensitive capacitance-sensing circuits
 Matula, Rastislav ; Kubánek, David (oponent) ; Hanák, Pavel (vedoucí práce)
The primary objective of this master’s thesis is to discuss a design and development of proximity touch control panel, which contains two simulated buttons and one rotary slider simulating functions of the potentiometer using specialized sensor controllers. The first part is describing functions and different technologies used to create touch sensors. It also introduces its usage in practice, advantages and disadvantages of different technologies which provides the readers with basic theoretical knowledge and introduction into the touch sensors. The second part as follows describes the definition of Integrated Circuits MPR083 and MPR084, outline of the features and methods of their functions. Displays internal connection of these circuits and describes forms of the serial communication with microcontroller connected to I2C bus. In these part there are in details described individual internal registers of these Integrated Circuits and theirs typical setups. It shows how it is possible to use the external interrupts and examples of their practical application. In the last chapter of these thesis is described the layout of the individual modules and construction of the whole designed device. The work is introducing two different concepts of programming the microcontrollers and consequently also construction of the appropriate ISP and JTAG programmers. It also introduces construction of the display units for visual feedback with the user and approach of the communication for the control LED matrix and graphical LCD display. The main part of this thesis is the construction of the control circuit, which includes key part, microcontroller ATmega16. It also presents the description of the program written in development environment AVR Studio in programming language C and his specific functions. In conclusion of the thesis are listed real measured behavior of the communication on I2C bus and their description.
Úplný záznam

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