National Repository of Grey Literature 6 records found  Search took 0.01 seconds. 
Modular RGB LED display with Ethernet
Zemánek, Petr ; Kaczmarczyk, Václav (referee) ; Bradáč, Zdeněk (advisor)
This thesis deals with an electronic circuit and a PCB of a modular RGB LED display with the Ehernet interface. Firstly, author describes a RGB colour model, features of RGB LED displays, ways of control them. The next chapter contains a short description of the Ethernet interface, UDP and TCP protocols and a lwIP TCP/IP stack. The last theoretical chapter is an introduction to ARM Cortex-M3 and Cortex-M4 based microcontrollers. The next chaper is deals with a hardware design of the modular RGB LED display. The device is designed to be modular. Individual devices can be combosed together and create a larger display. Data from the Ethernet interface will be displayed on the RGB LED matrix, resolution of the matrix is 32 × 32 (1024 diodes). A refresh frequency is 100 Hz, a color depth is High color (16 bits) and a scanning 1/16 (two rows is driven at the same time). The next chapter describes the firmware for the RGB LED display, all its logical parts including a web page. Author also created the PC application, which sends pictures using UDP protocol to individual modules.
Specifications of swithced DC/DC convertors used for automotive applications. Parameters of suitable MOSFETs, option fo partials damping of their switching operation
Langer, Lukáš ; Froehling, Kenneth (referee) ; Walek, Agata (advisor)
Tématem bakalářské práce je úvod k využití nových prostředků pro osvětlení automobilů, zejména pak osvětlení pomocí LED. Tato práce bude zaměřena právě na systém LED osvětlení a jejich zapojení a spínacích obvodů. Dále bude práce věnovaná LED budičům pomocí MOSFETů, jejich parametrům a vlivům na jejich obvody. V práci bude také popis samotného měření daných obvodů s rozborem měření i jeho výsledků. Práce necílí na technické detaily, ale těžiště je ve zvládnutí jazyka při obecnějším popisu principů a postupu měření.
Led matrix 8x64
Marek, Michal ; Macháň, Ladislav (referee) ; Šteffan, Pavel (advisor)
The bachelor thesis describes what is a LED matrix and how to control them. The function of the control circuits for the LED matrixes, the function of the current controller and microcontroller programming method are delineates in the project. These include microcontroller programming via universal serial bus, changing source code parameters via local ethernet network with the ethernet connect module, using standard peripheral buses for serial transmissions and the ways of controlling LEDs using relevant libraries. Objective is to introduce a solution for LED controlling using the Windows software application and propose complex assembly includes all the necessary blocks, which provides simple operating for new users.
Led matrix 8x64
Marek, Michal ; Macháň, Ladislav (referee) ; Šteffan, Pavel (advisor)
The bachelor thesis describes what is a LED matrix and how to control them. The function of the control circuits for the LED matrixes, the function of the current controller and microcontroller programming method are delineates in the project. These include microcontroller programming via universal serial bus, changing source code parameters via local ethernet network with the ethernet connect module, using standard peripheral buses for serial transmissions and the ways of controlling LEDs using relevant libraries. Objective is to introduce a solution for LED controlling using the Windows software application and propose complex assembly includes all the necessary blocks, which provides simple operating for new users.
Specifications of swithced DC/DC convertors used for automotive applications. Parameters of suitable MOSFETs, option fo partials damping of their switching operation
Langer, Lukáš ; Froehling, Kenneth (referee) ; Walek, Agata (advisor)
Tématem bakalářské práce je úvod k využití nových prostředků pro osvětlení automobilů, zejména pak osvětlení pomocí LED. Tato práce bude zaměřena právě na systém LED osvětlení a jejich zapojení a spínacích obvodů. Dále bude práce věnovaná LED budičům pomocí MOSFETů, jejich parametrům a vlivům na jejich obvody. V práci bude také popis samotného měření daných obvodů s rozborem měření i jeho výsledků. Práce necílí na technické detaily, ale těžiště je ve zvládnutí jazyka při obecnějším popisu principů a postupu měření.
Modular RGB LED display with Ethernet
Zemánek, Petr ; Kaczmarczyk, Václav (referee) ; Bradáč, Zdeněk (advisor)
This thesis deals with an electronic circuit and a PCB of a modular RGB LED display with the Ehernet interface. Firstly, author describes a RGB colour model, features of RGB LED displays, ways of control them. The next chapter contains a short description of the Ethernet interface, UDP and TCP protocols and a lwIP TCP/IP stack. The last theoretical chapter is an introduction to ARM Cortex-M3 and Cortex-M4 based microcontrollers. The next chaper is deals with a hardware design of the modular RGB LED display. The device is designed to be modular. Individual devices can be combosed together and create a larger display. Data from the Ethernet interface will be displayed on the RGB LED matrix, resolution of the matrix is 32 × 32 (1024 diodes). A refresh frequency is 100 Hz, a color depth is High color (16 bits) and a scanning 1/16 (two rows is driven at the same time). The next chapter describes the firmware for the RGB LED display, all its logical parts including a web page. Author also created the PC application, which sends pictures using UDP protocol to individual modules.

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