Search results for "Arduino"
showing 10 items of 34 documents
Low-cost, portable open-source gas monitoring device based on chemosensory technology
2015
[EN] We report herein the construction of an electronic device to perform the real-time digitalization of the color state of the optical chemosensors used in the detection of dangerous gases. To construct the device, we used open-source modular electronics, such as Arduino and Sparkfun components, as well as free and open-source software (FOSS). The basic principle of the operation of this device is the continuous color measurement of a chemosensor-doped sensing film, whose color changes in the presence of a specific gas. The chemosensor-sensing film can be prepared by using any of the widely available chemosensors for the desired gas. Color measurement is taken by two TCS230 color sensor I…
Fizikālo modeļu izmantošana fizikas un informātikas apguvē
2019
Fizikālo modeļu izmantošana fizikas un informātikas apguvē. Jemeļjanovs D., darba vadītājs Dr. Phys., Dudareva I.. Bakalaura darbā ir 81 lappuse, 5 nodaļas, 17 apakšnodaļas, 10 tabulas, 45 attēli, 9 pielikumi, 25 informācijas avoti. Darbs rakstīts latviski. Darba mērķis ir izvērtēt iespējas, priekšrocības un trūkumus fizikālo modeļu izveidē informātikas priekšmetā un to izmantošanā fizikas priekšmeta apguvē vidusskolas posmā. Darbā tika veikta literatūras analīze ar mērķi noskaidrot praktisko metožu, tādu kā modeļu izgatavošanu, nozīmi mācību procesā. Aprakstīti izveidotie fizikālie modeļi, to izveide un programmēšana informātikas priekšmeta ietvaros. Veikta mācību materiālu aprobācija vidu…
PERANCANGAN ALAT UKUR INTENSITAS CAHAYA BERBASIS ARDUINO LEONARDO MENGGUNAKAN SENSOR LDR (Light Dependent Resistor)
2020
Lux meter is a device used to measure the intensity of light in an area. The purpose of this thesis is to design a light intensity measuring device using LDR components as a light sensor, comparing light intensity measuring devices made using LDR sensors and Arduino Leonardo based microcontrollers with standard tools. The data used in this study are primary data. The data obtained is then processed using MS. Excel. The type of light bulbs used are Philips CFL (Philips Essential) lamps, each lamp having a power of 5, 8, 11, 14, 18, 23, 27, 32, 35, and 50 watts with a luxmeter vertical distance of 1, 2 and 3 meters from the lamp.
 From the results of testing the tools and processing of c…
Dynamic reconfiguration of electrical connections for partially shaded PV modules: Technical and economical performances of an Arduino-based prototype
2018
The partial shading phenomenon is a well known problem of photovoltaic plants. Partial shading leads to undesirable effects such the electrical mismatch, the generation of hot spots, and generally the decrease of production of electric energy. To mitigate the last effect, a dynamic reconfiguration of the electrical connections between modules was taken into account. In this paper, starting from an already developed system for a small-scale photovoltaic plant reconfiguration, the study of the economical benefits of the employment of a reconfigurator are traced. Five different incentive policies of diverse Countries have been considered to evaluate the increase of Net Present Value of system …
FINDUS: An Open-Source 3D Printable Liquid-Handling Workstation for Laboratory Automation in Life Sciences
2020
3D-printed laboratory devices can enable ambitious research purposes even at a low-budget level. To follow this trend, here we describe the construction, calibration, and usage of the FINDUS (Fully Integrable Noncommercial Dispensing Utility System). We report the successful 3D printing and assembly of a liquid-handling workstation for less than $400. Using this setup, we achieve reliable and flexible liquid-dispensing automation with relative pipetting errors of less than 0.3%. We show our system is well suited for several showcase applications from both the biology and chemistry fields. In support of the open-source spirit, we make all 3D models, assembly instructions, and source code ava…
An open-source instrumentation package for intensive soil hydraulic characterization
2020
International audience; We present a new open-source and modular instrumentation package composed of up to ten automatic in- filtrometers connected to data acquisition systems for automatic recording of multiple infiltration experiments. The infiltrometers are equipped with differential transducers to monitor water level changes in a Mariotte re- servoir, and, in turn, to quantify water infiltration rates. The data acquisition systems consist of low-cost components and operate on the open-source microcontroller platform Arduino. The devices were tested both in the laboratory and on different urban and agricultural soils in France and India. More specifically, we tested three procedures to t…
Virtuālās realitātes adaptera ar elektriski vadāmām šķidrā kristāla lēcām izmantošana akomodācijas funkcijām
2020
Maģistra darbs ir uzrakstīts latviešu valodā uz 45 lapaspusēm. Tas satur 26 attēlus, divas tabulas, četrus pielikumus un 38 atsauces uz literatūras avotiem. Darba mērķis ir izstrādāt akomodācijas funkciju treniņu iekārtu, kas tiek darbināta ar elektriski vadāmām šķidro kristālu lēcām. Metode: elektriski vadāmās šķidro kristālu lēcas tiek iestrādātas virtuālās realitātes adapterī un darbinātas ar speciāli izstrādātu kontrolieri, kas izstrādāts uz Arduino programmatūras bāzes. Subjekti: eksperimentā piedalījās divas dalībnieces 26 un 31 gadus jaunas. Secinājumi: izveidotā iekārta faktiski ir izmantojama akomodācijas funkciju uzlabošanas/trenēšanas nolūkiem, lai gan ir nepieciešami vairāki būt…
How to Use the DHT22 Sensor for Measuring Temperature and Humidity with the Arduino Board
2016
Abstract The objective of this paper is to achieve a functional system in terms of hardware and software, to measure temperature and humidity. Also, this system will allow to monitoring the time. In this, we use an Arduino board with interfacing a sensor placed in local environment to measure temperature and humidity. The paper aims to achieve the following goals: - achieving a functional system in terms of hardware and software that allows measuring and monitoring temperature, humidity and the time; - using a development board for the communication with the sensor and clock; - implementation a program that allows requirements.
Hardware and software designing of USB based plug n play data acquisition device with C# and LabView compatibility
2015
As interdisciplinary sciences getting popular with every passing day, the need of electronic devices interfacing with a PC is also increasing. Very useful products (Arduino, RasberryPi, etc) made their way in commercial market to cater such needs however they require programming skills, specific IDE's (integrated development environments) and lack compatibility with useful tools such as NI (National Instrument) LabView[1] and C#. Since these two (C# and LabView) are supposed to be widely used for their user friendliness, but unfortunately are not prioritised as a development option due to lack of supporting hardware which is either too expensive, rare or too complex. Hence in this research …
Arduino kā instruments dizaina un tehnoloģiju apguvei 8. klasē
2022
Diplomdarba autors: Stehans Altuhovs. Diplomdarba nosaukums: Arduino kā instruments priekšmeta “Dizains un tehnoloģijas” apguvei 8. klasē Diplomdarba mērķis ir izpētīt mikrokontroliera Arduino apguves un izmantošanas iespējas mācību priekšmetā “Dizains un tehnoloģijas” 8. klases skolēniem. Darba teorētiskajā daļā tika atspoguļota esošā situācija ar mācību priekšmetam “Dizains un tehnoloģijas” pieejamo instrumentu klāstu, detalizēta šo instrumentu klasifikācija un dots instrumentu raksturojums. Darba teorētiskajā daļā tika pētīta Arduino pielietošanas prakse vispārizglītojošo mērķu sasniegšanai dažādās valstīs, piemēram, ASV, Lielbritānija, Vācija, u.c., kā tas minēts dažādos pētījumos. Darb…