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Design and Development of a System for Monitoring the Microclimate of Indoor Plants with Integration into Smart Homes
Návrh a vývoj systému pro sledování mikroklimatu pokojových rostlin s integrací do chytré domácnosti
(Czech Technical University in Prague, 2026-01-06) Tonner, Jan; Mlejnek, Pavel; Třeštík, Jaroslav
This master's thesis focuses on the design and implementation of the Flower Pen wireless system for monitoring the microclimate of indoor plants. The device, based on the ESP32-C3 microcontroller, measures soil moisture, temperature, relative humidity, and light intensity. The design utilizes AHT20 and BH1750 digital sensors complemented by a custom capacitive probe in a 3D-printed PET-G enclosure. Communication is realized through energy-efficient Bluetooth Low Energy advertising frames directed to a central communication hub. The gathered data is subsequently integrated into smart building systems via MQTT and Modbus RTU protocols, and an InfluxDB database. The system's functionality was verified by laboratory measurements of antenna impedance matching and long-term testing in real-world conditions. The result is a stable open-source platform fully compatible with modern home automation standards.
Usage of Short-Range MIMO FMCW Radar as Car Parking Sensor
Použití MIMO FMCW radaru s krátkým dosahem jako parkovacího senzoru
(Czech Technical University in Prague, 2026-01-13) Al Azhari, Mahmoud; Adler, Viktor; Navrátil, Václav
The shifting towards multi-purpose sensors in ADAS has seen a high potential of research and development in recent years, targeting not only driving safety and comfort functions, but also enhancing the autonomous parking capabilities which serves as a major competition among car manufacturers, while taking into account the reduction in the production and material costs. The radars have proved advanced capabilities for autonomous driving, having robust performance in semi-all-weather conditions while maintaining an excellent doppler resolution with suitable range and angular resolutions. The subject of this thesis is to extend the conventional usage of FMCW MIMO radars from being long or medium range sensors used for ACC and other functions to short-range high-resolution sensors to be used in autonomous parking scenarios. The thesis demonstrates the fundamentals of the signal processing chain for FMCW radar including MIMO concepts that enhance doppler and angular resolutions. It discusses the well-known 2D-FFT operations, CFAR detectors as well as some angular estimation methods including beamforming and 3D-FFT. The focus radar equipment is the Texas Instruments AWR1843AOPEVM that supports wide bandwidth selections and under mmWave products which can be configured to run out-of-box. The target is to configure this EVM to reach 4 GHz bandwidth full sweep, integrate it on a car and test some real-world parking scenarios to evaluate the performance of the board.
An automated communication system based on semaphore alphabet and Morse code design and implementation of multiple devices
Automatizovaný komunikační systém založený na semaforové abecedě a Morseově kódu návrh a realizace více zařízení
(Czech Technical University in Prague, 2026-05-22) Šilpoch, Martin; Drábek, Tomáš; Zezula, Pavel
This thesis aims to design automated communication systems based on semaphore flag alphabet and Morse code. 3D models were designed and control electronics were selected based on specified parameters, which led to the development and construction of two independently working devices. The devices were designed with emphasis on minimal cost, easy portability and ease of use. To fulfill defined requirements, a remote control device was further designed, which allows control of the devices over a longer distance. The constructed devices underwent a series of tests, which validated functionality of the devices and fulfillment of specified requirements. The finalized devices will be used to demonstrate semaphore flag alphabet and Morse code at public events and for promotion of the university.
Sliding door drive and smart home integration
Pohon pro posuvné dveře a integrace do chytré domácnosti
(Czech Technical University in Prague, 2026-08-07) Šveda, Mikuláš; Novák, Martin; Navrátil, Milan
The aim of this work is the design and implementation of a system to drive sliding doors with integration into a smart home environment. The device is primarly intended for already installed home sliding doors. Part of thesis involves selecting individual electrical and mechanical components, with a focus on low costs. Several 3D printed parts were designed to make the assemply possible. The instalation was followed by implementation of software program to control the device and establish a connection with smart home via the Matter protocol, ensuring ineroperability with hubs from different manufactures. The device was then put into operation and tested. The thesis and its appendices include all necessary files, together with instructions to assemble and configure a replica
Smart home control model
Model řízení chytré domácnosti
(Czech Technical University in Prague, 2026-05-22) Nosek, Jakub; Svatoš, Jakub; Linda, Miloslav
This bachelor thesis describes the design and implementation of a physical model for demonstrating smart home automation. The hardware is based on the ESP32 microcontroller, connected via the I2C bus to BME280 and BH1750 environmental sensors for measuring temperature, humidity, pressure, and illuminance. The indoor environment is controlled by a heating resistor with a fan, and a set of LEDs combined with a servomotor for mechanical tilting of window blinds. The building model itself was manufactured using 3D printing technology from PETG material. The control software was implemented in C++ using the Arduino framework and the FreeRTOS operating system, which manages the scheduling of concurrent tasks. Temperature control is achieved using a PI controller with an integration window, while illuminance is managed by a stepping algorithm with a dynamic deadband. For user interaction, a web application was created to allow remote monitoring of measured data and real-time parameter adjustment. Final testing verified the functionality of the designed hardware and software in regulating temperature and lighting under real room conditions.