SURVEILLANCE AND SECURITY MODELS BASED ON THE ARDUINO UNO INTERFACE

. The issue demonstrated in the article covers construction of surveillance and security systems on Arduino UNO platform Technological and Software aspect which are based on Quality Semiconductor Sensor-MQ135; PIR Motion Sensor and use of blocking peculiarities. The project model integration process in both a virtual and physical context is described in detail and analyzed in the paper. The following are specifically used: An Arduino UNO microcontroller board, the Arduino Software IDE (Integrated Development Environment), a local code editor on the PC


I. Introduction
The "Fourth Industrial Revolution" era is defined by the fields of artificial intelligence, electronics, and programming... Our lives are being rapidly impacted by technological advancements that are erasing the distinctions between the physical, digital, and biological realms.There are a lot of "smart" gadgets in the technological world, some of which even have intelligence that is akin to human intellect and is built like it.
The article will discuss the use of one of these unique devices, the Arduino UNO.
In general, Arduino was developed with students in mind, enabling them to quickly make electronic projects.But today, high school students, college students, and anybody else interested in the subject are all fascinated by studying the technology behind using Arduino in both official and informal settings.
Naturally, interest in using Arduino in our practice also increased.The research's objective was to examine the technical facets of using an Arduino UNO.When creating the models for our research project, "Arduino UNO interfacebased sensors" (AIR Quality Sensor-MQ135; PIR Motion Sensor), this included developing a methodology for the integration and practical implementation of the online service https://www.tinkercad.com/, the Arduino IDE programming editor, and the Arduino UNO microcontroller in both a virtual and real environment.
The technological and software resources needed for projects based on the Arduino UNO interface are freely accessible on the Internet via its official website https://www.arduino.cc/.Recommendations for working with Arduino and helpful practical tutorials are also provided in the Georgian educational space.(Zakariashvili M., 2022); (Mosashvili I., Oniani S. 2016); (Tabatadze Z., Todua T. 2019); (Geddes, Mark. 2016).
In our opinion, this work will assist students learn about and explore the interesting world of Arduino to some extent in addition to existing instructional resources.

Integration of Arduino UNO and Arduino IDE
Putting the project's software code in the Arduino IDE environment, saving it there, and uploading it to the ARDUINO UNO.
The actual electronic scheme of the project will be produced with the help of the virtual scheme created on the online portal https://www.tinkercad.com/;The project code will be saved as a "*.ino" file and placed on the Arduino IDE desktop.The software code will then be uploaded to the Arduino UNO board, the main control element of the actual electronic circuit, which is connected to the computer using a special USB cable for the Arduino UNO microcontroller.This allows data transmission and reception, program loading, and powering of the Arduino.The Arduino can also be powered by a typical power supply device.In this instance, the project will be implemented practically without the use of a computer.

III. Projects Models Based on the Arduino UNO Interface We present the following projects:
✓ PIR Motion Sensor -Surveillance Alarm ✓ AIR Quality Sensor MQ135 -Security Alarm Before the projects are actually implemented, a preliminary online virtual simulation will be performed on the https://www.tinkercad.com/portal; we'll then carry out an actual experiment with the electronic model of the project by integrating the Arduino IDE software application on the Arduino UNO interface from the computer, which will then be transferred to the real space independently of the computer.

Interfacing Arduino uno with PIR motion sensor
Project name: PIR Motion Sensor -Surveillance Alarm Project goal: Building a surveillance model using a PIR sensor/ Automatic management on the Arduino UNO interface.
The project model's operational algorithm is described as follows: The PIR sensor built into the Arduino UNO interface can detect and sense movement up close, such as people moving around a room.The red notification lamp turns on, the alarm begins to sound, and a message or warning about a change in the designated space is shown on the monitor in accordance with the software code.Otherwise, the light is green, the alarm is off, and peace-related information is shown on the monitor.
Components A PIR -Passive Infrared Sensor, also called as motion sensor is an electronic device which senses motion using a pair of pyroelectric sensors to detect heat energy in the surrounding environment.These two sensors sit beside each other, and when the signal differential between the two sensors changes (suppose if a person enters the room), the sensor will engage.It basically catches movement.It has three terminals namely Gnd, Vcc and signal pin with 3V regulator, time delay controller, sensitivity controller and BIS001.(See Fig. N7)

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First Stage: tinkercad.comvirtual environment Project circuit diagrams in tinkercad virtual online environment (See Fig. N8, N9) Actual circuit diagram of the project.The picture shows a model of the real scheme of the project, which is built in accordance with the virtual scheme made in Tinkercad.(See Fig. N12) • Third stage: Arduino IDE, Arduino Code; Placing the project software code, saving it in the Arduino IDE environment, uploading it from the computer to the ARDUINO UNO, experiment The software code of the project built in the Tinkercad.comonline space will be placed on the Arduino IDE working board.It will be saved as "*.ino" file and uploaded to the board of the actual built circuit-Arduino that is connected to the computer using the Arduino UNO's unique USB cable.Arduino IDE environment (See Fig. N13 ) Fig. N7 PIR Motion Sensor nitrogen oxides, alcohol, benzene, smoke, carbon dioxide, etc.The red warning lighting turns on in line with the software code, and a message (warning) regarding air pollution in the specified area is shown on the monitor.In other situations, the alert is silenced, the lamp turns green, and the monitor shows details on the air's non-toxic status.

IV. Conclusions
The article covers the processes of modeling and building surveillance and security systems based on the Arduino UNO interface in virtual and real environments.https://www.tinkercad.com/;Arduino Software IDE (Integrated Development Environment) local programming editor on the computer and Arduino UNO electronic constructor were the tools utilized to implement the projects.The AIR Quality Semiconductor Sensor -MQ135 and PIR Motion Sensor were utilized as samples.

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Fig. N2 tinkercad.comFig. N3 tinkercad.comFig. N4 tinkercad.com• What is Arduino IDE? Arduino Software IDE is an open source software editor that enables you to use the Arduino IDE programming language and the Arduino development environment to write the codes required to make the