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Experimental electroacoustic musical instrument
Hrdlička, Matěj ; Dlouhý, Dan (referee) ; Indrák, Michal (advisor)
This bachelor thesis deals with the design and construction of an experimental electroacoustic musical instrument inspired by analogue synthesizers from Dubreq -- stylophones. In contrast to the original stylophones, this Stylophone processes the audio signal in digital form. Stylophone contains two independent sound generators, which are two Arduino NANO development boards. In the theoretical part of the thesis, the historical development of the models of the original stylophones is described and the circuitry and sound generation method of the original Stylophone from 1968 is described. The practical part describes the circuit design, PCB, Arduino code and device construction. Also described are the different sounds generated by the instrument, their frequency analysis and a comparison of the sound character of the instrument with the sound analysis of the original Stylophone S1 from Dubreq. The last chapter of the thesis deals with the description of the techniques of playing the Stylophone and their notation.
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Hardware Module for Interactive Control of Projects in PureData
Křivánek, Roman ; Krajsa, Ondřej (referee) ; Schimmel, Jiří (advisor)
In the work, there are basic theoretical information about the Arduino Uno R3 board. Then there are theoretical information about the components used. Furthermore, there is a chapter in the work where individual components are tested with the Arduino Uno R3 board. During the testing of the components, circuit diagrams and sample codes are provided to test the functionality of the components and modules. At the end of the work, there is a chapter on the design of the printed circuit board, which is the output of this work
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Controlling LEGO Technic Active Elements from EV3
Blaško, Daniel ; Polčák, Libor (referee) ; Hranický, Radek (advisor)
LEGO Mindstorms je populárna rada programovateľných kociek s rozsiahlou sadou funkcií, ktorá už 25 rokov pomáha učiť deti základy robotiky a počítačových vied, a ktorá sa teší širokej komunitnej podpore. Cieľom tejto bakalárskej práce je vytvoriť hardvérové a softvérové riešenia, ktoré zlepšia kompatibilitu medzi kockou Mindstorms EV3 a ostatnými motorizovanými LEGO súčiastkami, s primárnym zameraním sa na produktovú radu Power Functions. V rámci tejto práce boli v rôznych iteráciách vytvorené radiče, ktoré rozširujú možnosti kocky EV3 ovládať motory, s použitím vlastných návrhov dizajnov plošných spojov a 3D tlačených puzdier. Okrem nich boli vyvinuté softvérové kódovacie bloky, ktoré umožňujú kocke komunikovať s týmito radičmi a ďalšími UART zariadeniami.
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Commissioning and expansion of an unfinished three-axis manipulator
Metz, Lukáš ; Králík, Jan (referee) ; Appel, Martin (advisor)
The objective of this theses is the development of the technological components needed for the commissioning of an unfinished three axis manipulator. That includes designing the control electronics, which will be mounted on a custom printed circuit board, development of needed firmware and software, and also the derrivation and implementation of the motor control logic. The fully functional manipulator will then be equiped with a digital microscope and a functioning focusing mechanism, which will provide the device with a possible utilization in laboratory settings.
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Construction of a home car simulator
Fous, Michal ; Straka, Tomáš (referee) ; Zháňal, Lubor (advisor)
This thesis deals with game simulators and issues closely related to design. The theoretical part summarizes the components used, the operating principles of individual devices, terms, and knowledge necessary for understanding this area. The next part of the thesis involves the design of the simulator frame and control elements, such as the gear shifter, pedals, and handbrake. The important part of the thesis deals with the design of printed circuits boards and solving problems related to electromagnetic noise generated by an electric motor. The final result is a fully functional prototype of the car simulator.
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Automation of the dispensing system and coffee registration of the coffee machine
Bleha, Martin ; Spáčil, Tomáš (referee) ; Formánek, Martin (advisor)
This bachelor's thesis's main objective is to establish the design and the implementation of a master control system for a coffee machine, as well as the development of the supporting software. The system aims to be able to track coffee consumption for each user individually. The thesis consists of five chapters. The first and second chapters form the theoretical part of the thesis, which is a brief review of the coffee machine and Raspberry Pi platform used in the system realization. Chapters three to five form the practical part, which consists of the analysis of selected components of the coffee machine, the designed solution, and its implementation with the coffee machine.
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Audio effect based on signal spectrum modification
Vejvoda, Zdeněk ; Sysel, Petr (referee) ; Schimmel, Jiří (advisor)
The thesis describes the design and the engineering solution of a hardware electronic sound effect that is a mixture of a frequency shifter and a delay effect. Electronic music intruments, sound effects and particularly modular synthesizer of the Eurorack standard are introduced. The firmware, developed utilizing the Max Gen environment and running on an ARM chip, prompted an examination of the Max platform. Finally, the thesis explores the calculations and processes required to construct a fully functional effect module. The device was assembled, tested and measured.
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Comlete design of class D power amplifier
Bistrý, Jan ; Šotner, Roman (referee) ; Petržela, Jiří (advisor)
In this bachelor's project was at first described a principle of class D power amplifiers. There was performed a characteristic of particular blocks. In the concrete steps were described particular solutions of these amplifiers with PWM driver, amplifier as an IC chip and were described advantages of this topology. It was performed an overview of the modern integrated amplifiers which are currently available. According to further requirements of this bachelor's project were designed a scheme and a board of printed circuit for this amplifier. In more details were described possibilities of output LC filter and performed its simulation. At the conclusion of this project was performed a laboratory measurement of realized amplifier which verified its performance and compliance with engaged parameters.
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Precision audio preamplifier for headset measurement
Šimek, Michal ; Balík, Miroslav (referee) ; Hanák, Pavel (advisor)
This thesis deals with microphone and headphone preamplifier for microtelephone and headset. The design shall meet the electrical interface requirements set out in ITU-T Rec. P.381(08/2012). The design includes a voltage converter, microtelephone bias and both a battery and an external power supply. In this work is also described the design of printed circuit board and the solution of a low noise in the whole circuit. The aim of this thesis is to design, built and embed the laboratory fixture into a metal box. Finally, measure the product on an APx525 audio precision analyzer.
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