National Repository of Grey Literature 222 records found  beginprevious208 - 217next  jump to record: Search took 0.03 seconds. 
ESP32-CAM – LET’S BUILD A LITTLE EYE
Zajíček, Milan
Microcontroller ESP32 can be obtained as a development board with 2Mpixel camera OV2640 together. The trademark of such module is ESP32-cam. Tutorial shows the abbility of the module to take the static pictures and video stream, communications skills and saving the data to the SD card. The USB-serial convertor CP2102 is used as an interface for the communication with PC.
Room Presence Detection in the Smart Home
Průdek, David ; Letavay, Viliam (referee) ; Pluskal, Jan (advisor)
The purpose of this thesis is to design and implement presence detection sensor which works with home automation. I focused on sensor implementation which needs for activity only available wearable electronics. Sensor placed in room can detect other devices and based on signal intensity it determines his location. For this case I chose Bletooth LE which is used to be implemented in the most of wearable electronics and recently new utilization of BLE was found for indoor navigation. Using this sensor for automation is ensured by system Home Assistant. Main benefit of this project is simply and cheap extend home automation capabilities for person detection in rooms, not only detection in large areas which offers GPS and Wi-Fi systems.
Coordination of MicroPython-Based IoT by Means of Node-RED
Kolář, Josef ; Peringer, Petr (referee) ; Janoušek, Vladimír (advisor)
The target of this thesis is to create means for using the Node-RED tool to coordinate physical nodes in the form of ESP32 chips in the Internet of Things. This is fulfilled by created Node-RED extension, the proposed MQTT channel protocol and custom firmware for these nodes. All of this suport deploy of diverse applications to nodes simultaneously side by side. The designed and implemented MicroPython firmware is capable of asynchronous operation of individual applications which provides an interface to communicate with the Node-RED. The functionality of this system has been successfully validated on the basis of two practical usage scenarios that demonstrate the possibility of direct use deployment system into practice in automation - even with the included firmware installer.
IoT with Reconfigurable Nodes in Python
Pitko, Erik ; Kočí, Radek (referee) ; Janoušek, Vladimír (advisor)
The main goal of this thesis is creation and implementation of monitoring software for reconfigurable ESP32 nodes equipped with the existing operating system MPOS. This system is then used to solve specific task. The monitoring system is capable of loading, activating and maintaining applications written in MicroPython language that is running on these nodes. Nodes can communicate with other applications using the MQTT broker.
Embedded Photo Trap with Storing Pictures on SD Card
Marek, Ondřej ; Strnadel, Josef (referee) ; Šimek, Václav (advisor)
This bachelor thesis analyzes approaches and methods used for creation of modern camera traps and their use cases. It also describes the design and implementation details of embedded camera trap prototype, which is an output of this thesis. It focuses mainly on ways of saving energy consumption, compressing stored data and innovative features in terms of improved lighting system and wireless communication. Finally, the conclusion of this thesis contains a discussion of the results obtained during evaluation of the prototype and compares its properties with the camera traps available on the market.
Smart Home System
Hájek, Jaroslav ; Lattenberg, Ivo (referee) ; Krajsa, Ondřej (advisor)
This work deals with connecting remote devices measure data of various types from physical quantities such as a temperature, a humidity to data displaying CPU or memory usage of the system to the user. The system uses Blockly to controlling logic and dependencies between devices. In the work is used lots of technologies for examples: MQTT, Websockets, GSM, Lightweight Mesh and others. The system is based on microservice which named is Flask. Flask service is an application interface for HTTP services of Python programming language. This can provide measured data by graphs and predefined components for viewing data. For controlling system was used single-board computer Raspberry Pi with a multitouch 7-inch display.
Development kit for microcontrollers communication with computer
Franek, Miroslav ; Novák, Lukáš (referee) ; Levek, Vladimír (advisor)
Master’s thesis deals with the design of development kit for communication between a microcontroller and a computer using USB, Bluetooth, WiFi and Ethernet interfaces. In the theoretical introduction is the analysis of theese interfaces and the interfaces used for communication by the microcontroller. In the next part, components for the development kit are selected. Then a wiring diagram and the printed circuit board is designed. Next, the firmware design is described. The last chapter deals with the implementation and testing of the development kit. The appendix contains a proposal for a laboratory task to introduce the development kit to students.
Distributed Control System with Dynamically Evolvable Nodes
Křek, Radim ; Kočí, Radek (referee) ; Janoušek, Vladimír (advisor)
This thesis describes creation of dynamically evolvable node, which will cooperate with other nodes. Group of these nodes will then create a distributed control system. The MQTT protocol is used for communications purposes between individual nodes. As hardware platform is used ESP32 and ESP8266. Whole operating system is written in MicroPython and supports a live uploading of user applications written in the same language. Later in thesis is decribed creation of monitoring node on Raspberry Pi, which control network. Complete system can be then used to control a intelligent house.
Intelligent System for Detection of Undesirable Gases and Smoke in the Interior
Kurák, Ondrej ; Orság, Filip (referee) ; Goldmann, Tomáš (advisor)
The object of this work is to create a device capable of detecting smoke and hazardous gases produced by a fire. To solve the problem is designed the device that can detect these dangerous substances before an injury or property damage. The provided solution provides smoke detection, measuring the concentration of various gases and sending these values over a wireless connection in real time.
Wireless Communication for Home Automation
Sezima, Václav ; Janoušek, Vladimír (referee) ; Hanáček, Petr (advisor)
This bachelor's thesis deals with the issue of wireless communication among devices and sensors for home automation. The goal is to design and implement a device known as the gateway that is passing messages and commands between sensors and controller that controls them from central point, e.g. computer or mobile phone. A part of this thesis is also a creation of several sensors for the purpose of testing and demonstration. The gateway and sensors are based on development boards WEMOS and Arduino and supports multiple wireless technologies for communication with among themselves and controller.

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