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Laboratory assignment for HCS 08 microcontrollers
Bilík, Jan ; Petyovský, Petr (referee) ; Macho, Tomáš (advisor)
The goal of my bachelor thesis is getting acquainted with serial buses I2C, SPI and 1-Wire and their implementation in communication between microcontroller NXP MC9S08LH64, temperature sensor, real-time clock circuit and shift register. The thesis also focuses on hardware connection with necessary circuits and behaviour of software functions used during data exchange.
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Sensor of Soil Humidity and of Temperature
Karásek, Vojtěch ; Lattenberg, Ivo (referee) ; Škorpil, Vladislav (advisor)
The bachelor thesis deals with subject of battery powered radio sensor measuring soil humidity and temperature. In thesis is described LoRa wireless technology, it's basic principles, parameters and usage. There are described different kinds of soil moisture and temperature sensors. Finally, a particular sensor and base station design is addressed.
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Wireless station with connection to IoT network
Kubíček, Richard ; Povalač, Aleš (referee) ; Kolouch, Jaromír (advisor)
This thesis describes the design of WiFi station for connection sensors and drivers with Inetrnet of Things connection. The station uses WiFi module ESP8266. Description of component which the station consists is also part of the thesis. Description of created library for control module ESP8266 by microcontroller is also part of thesis. Finally, documents for production of this station are also part of the thesis.
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Two sensor temperature measurement
Novák, Lukáš ; Háze, Jiří (referee) ; Pavlík, Michal (advisor)
This thesis deals with PCB design and programming of microcontroller AVR, that communicates with WiFi module and Dallas brand thermometers. Wifi module sends data to internet database. In case of communication malfunction information is saved into microcontroler´s EEPROM. When communication is restored information is send to database.
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Small Temperature Test Chamber
Wolfshörndl, Robert ; Punčochář, Josef (referee) ; Šebesta, Jiří (advisor)
This diploma thesis deals with the design of a small temperature test chamber. The first chapter is a study of temperature sensors suitable for realization of temperature chambers. The conclusion of this chapter is devoted to digital temperature sensor DS18B20. The second chapter deals with the principles and basic parameters of Peltier cells. In the third chapter design of individual electronic components of the temperature chamber is realized (circuit diagrams and PCBs), including a description of basic features of the microcontroller firmware. The fourth chapter is devoted to a description of the basic properties of the application software and a description of the communication protocol. The last two chapters deal with the construction of the temperature chamber and the results of final functional test.
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Monitoring and regulation of water reservoir
Malý, Michal ; Fedra, Zbyněk (referee) ; Frýza, Tomáš (advisor)
This work is sight on production automatic machine for temperature adjustment and highs water level in reservoir. Automatic machine watch air temperature, water temperature in reservoir and temperatures on solar panel. Further watch water mark in reservoir by the help of rustless probe. By the help of this way adventitious data governs circulatory pump and solenoid valve for suffer waters. Work includes full technical documentation including PCB.
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Temperature regulator
Fireš, Martin ; Richter, Miloslav (referee) ; Macho, Tomáš (advisor)
This work deals with design and construction of the temperature regulator with a resistive load as primarily. Each structural element is described by a theoretical part which is needed for further understanding and practical solution the thesis heads for. The current output for half-wave modulation is solved in PSD control loop using temperature measurement by DS18B20. Rotary encoder, character display or PC visualization are used to controlling and displaying.
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Temperature Sensor Using (Espressif) ESP32 Module
Roško, Tomáš ; Lattenberg, Ivo (referee) ; Škorpil, Vladislav (advisor)
This bachelor thesis focuses on construction of battery powered temperature sensor with Wi-Fi module ESP32 with the possibility of connection to any analogue industrial sensor. The construction of module emphasizes on minimal battery power consumption with taking into account the longest possible duration per one charging battery cycle. It is also stressed on the way of storing measured data and realization of website, which presents those data to the end user in a comfortable manner. The theoretical part describes Internet of Things, accentuates its history, usage and security. The chapter also covers vast possibilities of application of different sensors and their usage in both industry and ordinary life. The Internet of Things chapter is concluded with description of most used communication technologies and protocols. The practical part is concerned with construction of temperature sensor with ESP32 module. It is divided into three main parts. First part deals with the specification of requirements and the design of the device. It also takes into account the choice of best possible way of powering the device by battery and calculation of battery life. Chapter also discusses individual parts of the whole device, such as the choice of temperature sensor or the solution of connectability of industrial sensors. The second practical chapter deals with the realization of device, both in hardware and software way. Hardware part describes realization of the printed circuit board and its 3D printed coverage, whereas software part sheds light on the programming of the device and how the web presentation works. The final chapter presents two main things: how was the module tested and complete financial calculation for the whole project.
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Versatile Control Unit of Solar Collectors
Tříska, Vít ; Růžička, Richard (referee) ; Šimek, Václav (advisor)
This thesis deals with design and implementation of a versatile control unit, which is primarily designed for control of solar collectors. It describes the various stages of design. First, the system of solar collectors is introduced. Its input-output parts are analyzed and the requirements are determined for the control unit. The characteristics of temperature sensors are examined, the work deals with continuous variable speed circulators. The following part is dedicated to hardware and software implementation of the objectives of the work. The boards were designed in Eagle design environment, the firmware was written in C programming language. In conclusion, the evaluation of the results of the proposed system and possible ways of its further development are discussed. The versatile control unit can be deployed in practice realistically.
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The temperature measurement with semiconductor sensor
Dostálek, Martin ; Klíma, Bohumil (referee) ; Huták, Petr (advisor)
This bachelor work disserts on measurement of temperature using the electronic temperature sensors DS18B20, which are controlled by microcomputer type AVR. This sensors use for communication the 1-wire type data bus. The 1-wire data bus, designed by Dallas Semicondoctor, allows connect more devices to the control unit using two wires. This type of measuring elements offers simple handling for the user. The sensor transforms the measuring data directly to the digital data. The rate of the transmission is determined by number of bits in the resultant value and the sensor is programmable during attendance by the set mechanism (master). The sensor code is consistent with the value of measured temperature. That means it doesn’t require supplemental decoding. The resulting data are worked up and displayed on LCD continuously. First part of this work is focused on the theory of 1-wire element. Further, there is an explanation of the principle of the measuring sensor function and its controlling by the control unit. Next, there is a basic description of the AVR type microcomputers, more detailed description is aimed at the ATiny2313 controller, which is used in this work. The important part is dedicated to the implementation of the 1-wire protocol to the appropriate control unit.
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