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Artigos de revistas sobre o tema "Buzzer sound"

Autor: Grafiati

Publicado: 3 de junho de 2025

Última modificação: 31 de julho de 2025

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1

BIRYUKOV, А. B., V. A. SIDOROV, and V. A. MARTYNENKO. "THE FACTORY BUZZER OF THE DONETSK IRON AND STEEL WORKS IS 150 YEARS OLD!" Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 78, no. 10 (2022): 906–13. http://dx.doi.org/10.32339/0135-5910-2022-10-906-906-912.

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Factory buzzers are a part of the glorious history of our country. Nowadays their use is a great rarity. It is noted that among a small number of metallurgical enterprises, as well as many decades ago, the buzzer of the Donetsk Metallurgical Plant (DMP) works. The facts about the origin of the buzzer of DMP, its use practically without interrup-tion during 150 years were provided. With the use of a sound analyzer Sonic Visualiser the characteristic sound spec-trum of the buzzer of DMP and the spectra of other metallurgical plants’ buzzers were determined. The unique features of each of the pre

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Faiz Bin Abdul Ghani. "Smart Cane based on IoT." International Journal of Education, Science, Technology, and Engineering 2, no. 1 (2019): 12–18. http://dx.doi.org/10.36079/lamintang.ijeste-0201.15.

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Generally, blind people use a traditional cane (known as white cane) for moving from one place to another. Although, white cane is the international symbol of blindness, it could not help them to detect place and to avoid obstacles. In this paper, we represent a model of walking stick for blind people. It consists of GPS module, GPS Antenna, Arduino, ultrasonic sensor and buzzer. This stick can detect place and obstacles. Position detection part is done with GPS module and GPS antenna. Ultrasonic sensor is used for detecting obstacles. Here, the buzzer produces two types of sound. When the bli

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Alam, Umme Kawsar, Fazle Rabby, and M. T. Islam. "Development of a Technical Device Named GPS Based Walking Stick for the Blind." Rajshahi University Journal of Science and Engineering 43 (December 31, 2015): 73–80. http://dx.doi.org/10.3329/rujse.v43i0.26153.

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Generally, blind people use a traditional cane (known as white cane) for moving from one place to another. Although, white cane is the international symbol of blindness, it could not help them to detect place and to avoid obstacles. In this paper, we represent a model of walking stick for blind people. It consists of GPS module, GPS Antenna, Arduino, ultrasonic sensor and buzzer. This stick can detect place and obstacles. Position detection part is done with GPS module and GPS antenna. Ultrasonic sensor is used for detecting obstacles. Here, the buzzer produces two types of sound. When the bli

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Dhiya, Dhiya Alfiyyah Ansar, Yuyun, and Imran Taufik. "The Design of a Noise Detection Automatisation Tool in Library – Based on Internet of Things." Inspiration: Jurnal Teknologi Informasi dan Komunikasi 12, no. 2 (2022): 17–31. http://dx.doi.org/10.35585/inspir.v12i2.12.

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The development of the times and technology produces innovations that facilitate human activities, one of which is for librarians to control and maintain library rooms. This study aimed to implement a noise detection automation tool and a sound monitoring system based on the Arduino nano 33 BLE sense microcontroller in a library room. The Arduino processed the data from the sound sensor through the Edge Impulse platform. Suppose a sound with a value exceeds 0.6 and takes more than 10 seconds. In that case, the warning "QUIET, PLEASE!" will be displayed, and a sound warning will also be issued

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Nurlaela, Fitri. "IMPLEMENTASI INTERNET OF THINGS (IOT) UNTUK MENDETEKSI KEBAKARAN RUANGAN." Jurnal Ilmiah Teknik Mesin, Elektro dan Komputer 5, no. 2 (2025): 388–401. https://doi.org/10.51903/juritek.v5i2.4980.

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The Internet of Things (IoT) is used as information from advanced services by connecting objects physically and virtually. In the design of the detector application by utilizing the internet of things using Esp8266 MCU Node that will be connected to several sensors namely fire sensor (flame detector) to detect the presence of fire or light of fire, smoke or gas. sensor (MQ-2) to detect smoke or gas and a temperature sensor (DHT11) used to detect temperature and humidity. Relays as connectors to water spray machines, buzzers and blynk apps are used as controllers in providing notifications on A

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Aisyah Rahimi, Hamimi Zakri, and Azira Khalil. "Development of Automatic Reminder System for Geriatric Medicine Intake." Malaysian Journal of Science Health & Technology 7, no. 1 (2021): 8–14. http://dx.doi.org/10.33102/mjosht.v7i1.152.

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The consumption of medicine is typical in geriatrics, having many problems related to medications. Geriatrics often forget to take their medicine, and this problem can be overcome by using an automatic reminder system. In this study, an automated reminder system is developed as an improved community element, acting as a system that can help geriatric in taking their medicine on time, thus, boosting their health condition. This reminder system also includes an interaction between the geriatrics and their caretakers. This reminder system includes Arduino UNO as the microcontroller, with the noti

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Atmiasri, Atmiasri, Akhmad Solikin, and Rasyida Shabihah Zukro A. "Voice Warning to Identify Distance to Obstacles on Smart Cane for Blind People." JEECOM Journal of Electrical Engineering and Computer 5, no. 2 (2023): 244–49. http://dx.doi.org/10.33650/jeecom.v5i2.6852.

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Blind people are often hampered in their mobility, while currently available assistive technology includes manual sticks and electronic mobility devices. Currently, the development of smart canes is still being carried out in many studies. Smart cane works by detecting the distance of the cane to obstacles in front of you. From detecting this distance, the response the user gets is generally in the form of vibrations and sounds from the buzzer. The sound provided by the buzzer cannot differentiate the distance between obstacles. Therefore, this study proposes the existence of additional sound

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Hendry, Chairul Rizal, and Supiyandi. "Perancangan Prototipe Rain Drop Sensor Berbasis Arduino Uno." Bulletin of Computer Science Research 3, no. 4 (2023): 315–18. http://dx.doi.org/10.47065/bulletincsr.v3i4.264.

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In Indonesia, the climate is mostly hot and humid, and most of the rainfall occurs. As a result, people are less aware of how much rain occurs inside rooms, homes, and offices. We need a warning to explain the problem so that we can take the necessary action when it rains. By creating Arduino-based rain sensors and implementing the fourth industrial revolution in everyday life, the study aims to raise awareness of rain unknowingly. The initial method is the implementation of the Raindrop Sensor based arduino which is an Arduino standard board based on the ATmega328P microcontroller. The Rain D

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Kartika Riyanti, Kurnia Paranita. "PERFORMANCE OF THE LM 386 SOUND SENSOR IN DETECTING FRUIT MATURITY BASED ON SOUND FREQUENCY." JOSAR (Journal of Students Academic Research) 3, no. 1 (2018): 155–62. http://dx.doi.org/10.35457/josar.v1i01.629.

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The LM 386 module is a sensor that is used to detect sound frequencies. This module consists of amplifiers with low power audio frequencies, has an internal resistor of 135K Between feet 1 and 8 feet. In this study a test of the ability of the LM 386 sensor was carried out in capturing the sound vibrations produced by watermelon. This is done to facilitate the watermelon traders in determining the maturity level of the watermelon that will be sold to consumers. The working principle of this tool is to capture the sound vibrations of the watermelon launched on the media, then the sound vibratio

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Permana, Rafli, Andrie Yuswanto, and Budi Wibowo. "NODEMCU INTERNET OF THINGS-BASED FIRE AUTOMATION DESIGN WITH BLYNK APPS NOTIFICATIONS." TEKNOKOM 6, no. 1 (2023): 14–19. http://dx.doi.org/10.31943/teknokom.v6i1.94.

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The impact of fires causes quite large losses, often even causing fatalities. The method used in the system is monitoring the fire sensor which is used to detect a fire, the buzzer as a notification output in the form of sound, and the water pump as a fire extinguisher which will function after the fire sensor is on. detecting the presence of fire. to detect fire in realtime and 9 in the event of a fire with a research and development. Monitoring approach on fire sensors used to detect the presence of fire, buzzers as output notifications in the form of sound, and water pumps as a tool to exti

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Ruan, Guan Qiang, Lei Yu, Yan Yan Yin, Fu Xing Yuan, and Jian Wang. "The Invention of the Car Horn Intelligent Display System." Applied Mechanics and Materials 347-350 (August 2013): 1957–60. http://dx.doi.org/10.4028/www.scientific.net/amm.347-350.1957.

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This article describes a system device capable of displaying a car outside sounds, the system device sound signals collected by the sound sensor , combined with the single-chip analytical processing Finally, LED lights, buzzer and other electronic actuator smart car external speaker sound source direction and strength of the drivers are able to accurately determine the rear of the vehicle the location and intentions, in order to take more appropriate driving route and speed, so that the operation of the vehicle more intelligent, is conducive to maintaining the smooth flow of traffic, more effe

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Shagapova, G. R. "The buzzer: not just a toy." VESTNIK ARHEOLOGII, ANTROPOLOGII I ETNOGRAFII, no. 2(61) (June 15, 2023): 199–206. http://dx.doi.org/10.20874/2071-0437-2023-61-2-17.

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The article analyzes the buzzer toy for boys. It is very easy to make from a button with a rope passing through the two holes. In past times, it was made of wood, bone plate, leather. When the rope with the plate is twisted and sharply released, the toys make a specific sound. The name of the toy in many languages reflects its buzzing. The aim of this work is to study the geography of the buzzer game in the Old and New Worlds and to reconstruct the ritual that underlies the game. The main research methods are mapping and comparative-historical method. The source base is represented by publishe

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Nas, Mardhiyah, Misnawati, Megha Rahmawaty Marsing, and Fadlia. "Prototipe Pemantauan Level Air Pada Bendungan Berbasis IOT." Journal of Applied Smart Electrical Network and Systems 1, no. 02 (2020): 63–69. http://dx.doi.org/10.52158/jasens.v1i02.120.

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The purpose of making this prototype is to make a water level pemantauan tool in the dam using ultrasonic sensors and an IoT system. To support the manufacture of this tool, several other electronic components are used, including the NodeMCU microcontroller, ultrasonic sensors, water pumps, relays, and buzzers. The process of the water level pemantauan system in the IoT-based dam works as a whole. The process begins with filling water from box 1 (analogous to river) to box 2 (analogous to a dam) assisted by a water pump to fill the water box. Then the ultrasonic sensor reads the water distance

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Mardhotillah, Ibnu, Rolly Yesputra, and Syartika Anggraini. "Tongkat Pintar Bagi Penyandang Disabilitas Tunanetra Berbasis Ultrasonic Dan Water Level." JUTSI (Jurnal Teknologi dan Sistem Informasi) 1, no. 3 (2021): 227–34. http://dx.doi.org/10.33330/jutsi.v1i3.1314.

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Abstract: At this time, persons with visual impairments are divided into two, namely total blindness and those who still have residual vision, with the reduced functioning of the sense of sight, someone who is visually impaired tries to maximize the functioning of the other senses such as smell, hearing, and so forth. Based on existing conditions in the field, as well as previous research, the researchers wanted to design a tool that could help people with visual impairments. This tool system works from the design of stick-shaped devices, the electronics are placed, such as arduino, ultrasonic

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Dr., Raju N. Panchal* Anant D. Awasare Dr. Jagruti R. Panchal. "SYSTEM DESIGN OF FIRE FIGHTING VEHICLE." Global Journal of Engineering Science and Research Management 4, no. 10 (2017): 60–63. https://doi.org/10.5281/zenodo.1007165.

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In this robot provides fire protection when there is a fire in a tunnel or in an industry by using automatic control of robot by the use of microcontroller in order to reduced loss of life and property damage. This robot uses dc motors, castor wheel, microcontroller, sensors, pump and sprinkler. Microcontroller is the heart of the project. Microcontroller controls all the parts of the robot by the use of programming. In this robot as the fire sensor senses the fire, it sends the signal to microcontroller; since the signal of the sensor is very weak the amplifier is used so that it can amplify

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Aryani, Dharma, Arya Irfan Gunawan, Reski Reski, Khairun Nisa, and Achmad Zubair. "Alat Bantu Jalan Tunanetra Menggunakan Sensor Light Detection And Ranging (LiDAR) berbasis Arduino." Jurnal Teknologi Elekterika 20, no. 2 (2023): 98. http://dx.doi.org/10.31963/elekterika.v20i2.4587.

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Walking stick is very important for the visually impaired person. It can help the visually impaired to walk more easily and to navigate the environment feeling safe and confident. Therefore, a cane that can detect object or obstacle is designed using Arduino microcontroller combined with a Light Detection And Ranging (LiDAR) sensor as an obstacle or object detector. Lidar sensors are utilized in visually impaired walkers equipped with notifications and warnings in the form of buzzer sounds and vibrations when obstacles and objects are detected. The walking stick is functioned in three conditio

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Sasmoko, Dani, Iman Saufik, and Nur Afifah. "Sistem Pendeteksi Suhu Tubuh Jarak Jauh dengan MLX 90614dan NodeMCU untuk Mencegah Penularan Covid-19 Berbasis IoT." Circuit: Jurnal Ilmiah Pendidikan Teknik Elektro 6, no. 1 (2022): 78. http://dx.doi.org/10.22373/crc.v6i1.11059.

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The health protocol has being an obligation in line with the implementation of Face-to-Face Learning in the school environment. Currently, the medical procedures are carried out by using a thermogun which able to detect human body temperature. The use of a thermogun is carried out by detecting the body temperature of students or visitors who entered the school environment. The used of the MLX 90614 Sensor and NodeMCU with the support of android technology, the temperature detection process can be carried out remotely based on the Internet of things. After several experiments, it was found that

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Wani, Swapnil B., Ramiz Abrar Ahmed Shaikh, and Amol A. Nagaokar. "Electronic Blind Stick." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 01 (2025): 1–9. https://doi.org/10.55041/ijsrem40484.

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Blind stick is an innovative stick designed for visually disabled people for improved navigation. We here propose an advanced blind stick that allows visually challenged people to navigate with ease using advanced technology. The blind stick is integrated with ultrasonic sensor along with light and water sensing. Our proposed project first uses ultrasonic sensors to detect obstacles ahead using ultrasonic waves. On sensing obstacles the sensor passes this data to the microcontroller. The microcontroller then processes this data and calculates if the obstacle is close enough. If the obstacle is

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Vanarse, Shreyas. "LANDMINE DETECTOR AND SURVEILLANCE ROBOT." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 04 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem31832.

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Landmines and different explosives are set in war fields and other populated places which causes wounds and once in a while death to people as well as property misfortune. There are different kinds of landmines, for example, Anti-tank landmines and people killing landmines. Antitank landmines and some of the people killing landmines are in metal casing so these landmines can be identified by utilizing metal finders. These landmines must be moved for dispersion utilizing mechanical arms. For recognizing the landmine, without human obstruction, the automated remote controlled ground vehicle with

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Sunitha Lingam, P. Shivani, K. Varnika, and V. Jahnavi. "Street-Light Emergency Buzzer System." international journal of engineering technology and management sciences 9, Special Issue 1 (2025): 37–42. https://doi.org/10.46647/ijetms.2025.v09si01.005.

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Today, with women's safety being an increasing issue and needing to be tackled through a concerted effort that covers three main areas: protection, empowerment, and independence. In spite of gender equality improvement, women remain under threat in various forms of harassment, abuse, and discrimination both in private and public settings. This is unacceptable and necessitates immediate redress through self-protection technology, sound legal protections, and strict social awareness. Women are exposed to a higher risk of abuse and harassment in the majority of non-domestic and isolated settings

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Chen, Weihao. "The Design of Sound Source Location and Tracking System Based on TDOA." International Journal of Computer Science and Information Technology 3, no. 3 (2024): 324–31. http://dx.doi.org/10.62051/ijcsit.v3n3.33.

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In this scheme, STM32F407 is used to process the information, and a system is designed to detect and track the short-range acoustic signal source continuously. After a detailed analysis of the hardware circuit, a complete system circuit design and software flow chart are presented. In this design through the single-chip drive passive buzzer sound, silicon-wheat audio signal sampling, silicon-wheat data collected by the single-chip computer data processing, based on the principle Of Time Difference of Arrival (TDOA), the distance and angle between the sound source and silicon malt are determine

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Fauzan, Muhammad, and Nina Paramytha. "An Internet of Things-based Automatic Medicine Consumption Reminder Box." Jurnal Sains dan Teknologi Industri 20, no. 2 (2023): 744. http://dx.doi.org/10.24014/sitekin.v20i2.22029.

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Because of age or doing too many activities at home, we often forget the obligation to consume routine medications that we should take that should be scheduled and the doses that have been determined. Therefore, the author wants to develop a tool that helps us consume drugs regularly and regularly. The medicine box uses ESP32 to integrate components such as ultrasonic sensors, loadcells, RTC, sound sensors, and ESP32 modules. Ultrasonic sensors are used to open and close the medicine box automatically, loadcell sensors to find out the condition of the rest or weight of the drug in the box, and

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Jawas, Hilmy, N. M. A. E. D. Wirastuti, and Widyadi Setiawan. "PROTOTYPE PENGUKURAN TINGGI DEBIT AIR PADA BENDUNG DENGAN MENGGUNAKAN SENSOR ULTRASONIK BERBASIS ARDUINO MEGA 2560." Jurnal SPEKTRUM 5, no. 1 (2018): 1. http://dx.doi.org/10.24843/spektrum.2018.v05.i01.p01.

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Prototype system for measuring the level of water debit on weir by using an Arduino mega 2560 based ultrasonic sensor. It is created for detecting flood system that works automatically by finding out the water level on the weir’s surface. This water surface level monitoring system is conducted by implementing an Arduino mega 2560 based ultrasonic system, which will compute the water level created at certain levels. This prototype device for measuring the water level on weir by using Arduino mega 2560 based ultrasonic sensor consists of Arduino Mega 2560, HC-SR04 Ultrasonic Sensor, 16 X 2 LCD,

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Supriadi, Mardiki. "Rancang Bangun Metronome Berbasis Mikrokontroler." Jurnal Ilmiah Vastuwidya 1, no. 2 (2020): 87–100. http://dx.doi.org/10.47532/jiv.v1i2.29.

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To know the exact count of time period between the first and furthermore, about beat in a song, we need an instrument called metronome. This research was done to design and make a metronome which is AT89S51 microcontroller based, so we can analyze the time period counting for every beat within tempo.The method that has been used in this research is books evaluating with studied everything which are connected with AT89S51 microcontroller, seven segment display, LCD, keypad 3X4 and buzzer. Seven segment display as an output to display number 1,2,3 and 4 according to its turn. LCD has a function

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Rizky Wahyu Pradana, Ganjar Febriyani Pratiwi, and Tri Nur Arifin. "RANCANG BANGUN SISTEM PEMANTAU KETINGGIAN AIR OTOMATIS MENGGUNAKAN SENSOR ULTRASONIK (HC-SR04) BERBASIS ARDUINO UNO DENGAN ANTARMUKA KOMPUTER BERBASIS MICROSOFT VISUAL BASIC 6.0." Jurnal Teknik dan Science 3, no. 1 (2024): 13–24. http://dx.doi.org/10.56127/jts.v3i1.1212.

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Efforts can be made to overcome this natural disaster, including providing a drainage system, maintaining forests and monitoring river water levels to determine the possibility of flooding if the level exceeds normal. In this research the author designed a tool to provide warnings before a flood disaster occurs. The design of an automatic water level monitoring system using an ultrasonic sensor (HC-SR04) based on Arduino UNO with a computer interface based on Microsoft Visual Basic 6.0 was created using HC-SR04 to measure distance, Arduino UNO as the main controller for the entire tool, LED an

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Jurnal, Redaksi Tim. "FIRE SENSING SYSTEM." Sutet 7, no. 2 (2018): 82–87. http://dx.doi.org/10.33322/sutet.v7i2.78.

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The current fire hazard is increasingly common, not only from human error or also gas leakage and the use of electrical equipment that does not detect earlier the possibility of fire and this tool is a fire sensing system. The work system is meant by some of the same ways and the occurrence of fire that exist in a room, and provide it with a buzzer. The purpose of making this tool is for an alarm system that can share a fire and explain how the process works. The result of making this tool, the sensor managed to detect the heat caused by the fire and buzzer issued an alarm sound.

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Turnip, Mega Tiarma Br, Anak Agung Ngurah Gunawan, I. Gusti Agung Putra Adnyana, I. Wayan Supardi, and Ni Luh Putu Trisnawati. "Obstacle Detection Stick for the Visually Impaired Using HC-SR04 Ultrasonic Sensor and Arduino Nano Microcontroller-based Raindrop Sensor." Journal of Engineering Research and Reports 25, no. 3 (2023): 1–6. http://dx.doi.org/10.9734/jerr/2023/v25i3886.

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Aims: With the stick, blind people can not only project their goals well, but also anticipate obstacles from the front, right, left, and unexpected puddles below without physical contact. Study Design: Obstacle Detection Stick for the Visually Impaired Using HC-SR04 Ultrasonic Sensor and Arduino Nano Microcontroller-Based Raindrop Sensor. Methodology: Calibration is performed by comparing the output value of the HC-SR04 ultrasonic sensor and the manual meter. The calibrated parameters are the distance of the obstacle at the front, left and right positions. The relationship between

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Jahir, Abdul, Kuat Indartono, Bagus Adhi Kusuma, and Abdul Ghofur. "Monitoring Banjir Berbasis Wireless Sensor Network." JURNAL MEDIA INFORMATIKA BUDIDARMA 6, no. 1 (2022): 347. http://dx.doi.org/10.30865/mib.v6i1.3470.

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Flood disasters often occur in Indonesia. Banyumas Regency is one of the districts that often experiences flooding. The area with the flood-prone category is Sumpiuh sub-district. One of the villages that often floods is Pandak Village. Cases that often arise when it rains for a long time and after it stops only a few moments later floods occur. The purpose of this study is to provide early warning system of flood detection to residents, so that material losses can be minimized. This research was conducted by making a Wireless Sensor Network (WSN) based flood monitoring device. The device cons

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Bachri, Affan. "Rancang Bangun Sistem Deteksi Kebakaran Gedung di Universitas Islam Lamongan Berbasis Mikrokontroller Menggunakan Radio Frekuensi." Jurnal Elektro 4, no. 1 (2019): 228. http://dx.doi.org/10.30736/je.v4i1.305.

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The process of firing is always unpredictable and predicted in advance. When it comes, what causes it, the level of coverage and how much impact it causes, are things that cannot be predicted by human capabilities. The design of a fire safety system that aims to improve the safety and comfort of occupants in the building. The analysis carried out is to measure and record temperature and conduct a series of several experiments. Temperature is equipped with Celsius (C) units and smoke uses PPM units (parts per million). By working, the smoke sensor and temperature will detect itself and work pro

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Hidayatullah, Muhammad, Sofyan Sofyan, Paris Ali Topan, Titi Andriani, and Nurhairunnisah Nurhairunnisah. "Monitoring System of Water Quality on Hydroponic Planting Media using Total Dissolved Solid (TDS) Sensor Based Arduino Uno R3." JURNAL ILMU FISIKA | UNIVERSITAS ANDALAS 14, no. 2 (2022): 108–15. http://dx.doi.org/10.25077/jif.14.2.108-115.2022.

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A water quality monitoring system in hydroponics with a Total Dissolved Solid Sensor (TDS) equipped with the Arduino UNO microcontroller has been developed. The TDS SEN0244 sensor read the water sensitivity, which will display the value of the reading on the LCD. Furthermore, if the output is less than 2.30 Volts or 1000 ppm, the buzzer will sound once, and the dosing pump will rotate to automatically add nutrients A and B. The buzzer will sound twice if the output is more than 2.40 Volts or 1200 ppm. When reading the sensitivity of water (well water) with a water value of 400 ppm, the relevan

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Mohd Fauzi, M. F., N. Nasir, H. Rashid, and R. Balan. "Development of Qiblat Finder Assisted Device for Visual and Hearing-Impaired Person." Malaysian Journal of Ergonomics (MJEr) 5, no. 1 (2023): 21–27. http://dx.doi.org/10.58915/mjer.v5i1.364.

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For the visual and hearing-impaired person, finding intended direction would be a challenging task due to their inability to sense effectively with their eyes and ears. This study aims to develop a prototype development of a smart qiblat finder to help disabled people finding direction anywhere independently. This smart qiblat finder are developed by using Arduino UNO as microcontroller, compass sensor and Global Positioning System (GPS). To determine the qibla direction, latitude and longitude data form by GPS module while the compass module used to show the qibla direction. As for the positi

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Hanan, Hanan, Anak Agung Ngurah Gunawan, and Made Sumadiyasa. "Simulasi Difraksi Fraunhofer Menggunakan Media Spreadsheet dan GNU Octave Sebagai Alternatif Pembelajaran dimasa Pandemi." Kappa Journal 5, no. 1 (2021): 120–27. http://dx.doi.org/10.29408/kpj.v5i1.1622.

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It has been designed the water surface level detection system based on the ultrasonic sensor HC-SR04 and the ESP8266-12E module through telegram and buzzer communication media.. The research aims to design a water surface-level detection system by using ultrasonic sensors and the ESP8266- 12E module. The tools and materials used during the design are: Ultrasonic sensors HC-SR04, module ESP8266-12E, and buzzer as an output to sound the alarm. The ultrasonic HC-SR04 sensor will detect the water surface level, the detection data will be sent to the ESP8266-12E module, then the system will send th

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Sasmoko, Dani, Reni Veliyanti, and Muhammad Naufal Ra’ifa. "Iot-Based Cattle Pen Security System Prototype with Wemos." Circuit: Jurnal Ilmiah Pendidikan Teknik Elektro 8, no. 2 (2024): 243. http://dx.doi.org/10.22373/crc.v8i2.23399.

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Cattle theft in cow barns frequently occurs in Central Java, Indonesia, highlighting the need for a monitoring system to prevent such thefts. The system developed uses Wemos integrated with a PIR sensor, employing Internet of Things (IoT) methods to detect human movement within the cow barn. A magnetic sensor will be installed on the barn door to provide remote monitoring. The monitoring system activates a buzzer and sends theft data to the cow barn owner from different locations. Testing of this monitoring system was successful, as evidenced by the PIR and magnetic sensors detecting breaches

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Damle, Abhinav, Bhumika Gireesh, Chirag T G, Siddhant S. Iyyanna, and Mr Santhosh B. "Two Way Authentication System for Exam Paper Leakage Detection: A Review." International Journal for Research in Applied Science and Engineering Technology 10, no. 3 (2022): 943–47. http://dx.doi.org/10.22214/ijraset.2022.40690.

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Abstract: The idea behind this project is to guard the leak of question papers before the examination and conjointly to maintain the protection of the solution paper till they reach the centre for analysis. An Electronic management Box is made during which the communication papers are going to be placed, and may be opened solely at the precise time of examination once the cross checking of the time. If anyone attempts to open the box before the stipulated time, then a beep sound can come from the buzzer, that is connected to the electronic box. RFID is connected to the electronic management bo

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Lubis, Aida Mahdalena, Fabio Sarmento Freitas Guterres, Joana Victorine Harryanto, and Mia Galina. "Smart Dust Bin With Automatic Lid and Buzzer Alarm." Journal of Electrical And Electronics Engineering 2, no. 2 (2020): 50. http://dx.doi.org/10.33021/jeee.v2i2.1085.

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<p class="Abstract">Touching dustbins by hand often are problematic by some people due to questionable hygiene conditions. This, along with laziness to dispose garbage properly may also be a factor that makes people hesitate to dispose of garbage. This project aims to make use of microcontroller technology to create a Smart Dust Bin. This prototype would have a lid that automatically open when a hand is approaching it which eliminates the need to physically touch the bin. The device also has internal alarm system which will sound whenever the content reaches level high enough inside the

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Lancioni, G. E., D. Oliva, S. Serenelli, and P. Pirani. "An Unobtrusive System for Helping a Person with Blindness and Intellectual Disability Travel in Indoor Areas." Perceptual and Motor Skills 85, no. 3_suppl (1997): 1431–34. http://dx.doi.org/10.2466/pms.1997.85.3f.1431.

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A system causing no environmental disturbance was employed for helping a woman with blindness and intellectual disability travel in indoor areas. The system provided encouragement and praise while the woman moved in the correct direction and a buzzer sound in the case of incorrect direction through earpieces. The results showed that the woman learned to use the system and traveled successfully.

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Corcoran, Kieran M. "When Does the Buzzer Sound?: The Nonstatutory Labor Exemption in Professional Sports." Columbia Law Review 94, no. 3 (1994): 1045. http://dx.doi.org/10.2307/1123250.

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Prayetno, Eko, Deny Nusyirwan, Ryan Ramadhan Putra, Randika Saputra, and Bayu Anggara. "Prototype of Gas Leaking Monitoring Device In Gas Distribution Pipe of PT. Prima Gasifikasi Indonesia in Tanjung Batu." Journal of Innovation and Technology 1, no. 2 (2020): 32–37. http://dx.doi.org/10.31629/jit.v1i2.3170.

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This study aims to help PT. Prima Gasifikasi Indonesia makes a device that detects leaks in gas distribution pipes based on microcontroller technology. This gas detector is connected to several virtual devices that make this tool work well, namely the MQ-2 sensor working as a gas detector, NodeMCU to control the device's controls. As a notification sender to Android, the LED indicates the tool is active, and the buzzer is the provider. Information with a voice indicator. This detector can detect gas to a 'distance 'of less "than '25 cm 'from the sensor. The input on this device, namely MQ-2, w

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Marpaung, Parlindungan Pandapotan. "Analysis of the Condition of Soil Moisture Content of Plants Experiencing Drought, Indicated by Buzzer Sound." Jurnal Ilmiah Inovasi 22, no. 3 (2022): 286–90. http://dx.doi.org/10.25047/jii.v22i3.3536.

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The value of plant soil resistance is related to the water content in the soil under conditions of sufficient or water drought. When the water content in the plant's soil decreases, it can cause the plant to wither. In this study, the soil water conditions of the plants were tested in sufficient condition or experiencing drought based on the soil resistance value of the plant. The test results on plant soil are in a rectangular container having the dimensions of the parameters of length, width and height in centimeters. The results of the research on plant soils were in the container in the co

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Soe, Min Thu, Darren Chua Lik Yang, Sim Kok Swee, and Wong Wai Kit. "Design of wearable social distancing card for enhancing public health safety compliance." Edelweiss Applied Science and Technology 9, no. 4 (2025): 362–78. https://doi.org/10.55214/25768484.v9i4.5982.

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During the COVID-19 pandemic, physical distancing has been essential in preventing the virus's spread. The WHO has implemented physical distancing with at least one meter between individuals. Despite widespread awareness, people often forget to maintain a safe distance in public spaces. This paper addresses this issue by proposing an innovative solution: a wearable social distance card. The objective of this paper is to design a wearable device equipped with modern sensor technology to detect and promote safe distance practices. This device integrates ultrasonics and passive infrared sensors,

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Bhupathi, Hari Prasad, Kambhampati Venkata Govardhan Rao, Gadi Sanjeev, CH Naga Sai Kalyan, and B. Srikanth Goud. "Design and Implementation of RFID-Enabled Petrol Pump and EV Charging Automation." E3S Web of Conferences 616 (2025): 03037. https://doi.org/10.1051/e3sconf/202561603037.

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Plan and build an automated gasoline pump system using radio frequency identification technology. Most gas stations use manual pumps. The holder of the vehicle must communicate with the driver. Automating these processes benefits both the vehicle holders and the time saved. We can reduce maintenance costs by eliminating the need for manual power. Here, we suggested an approach like an RFID-based automated gas pump system. EM-18 RFID reader Linked to the Arduino board via UART ports. A relay linked to an Arduino digital pin controls the AC pump/DC EV charging station. Digitised pins on an Ardui

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Khirade, Om. "Design and Implementation of a Sound Detector Circuit Using Op-Amp 741." International Journal for Research in Applied Science and Engineering Technology 12, no. 11 (2024): 2454–58. https://doi.org/10.22214/ijraset.2024.65530.

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The sound detector circuit based on the op-amp 741 is an efficient solution for alerting individuals to ambient sound vibrations that may otherwise go unnoticed due to various distractions or background noise. Designed to operate effectively within a range of about 6 meters, this circuit features a condenser microphone that captures sound waves and converts them into electrical signals. The op-amp 741 amplifies these signals, which are subsequently processed to produce audible alerts through a piezo buzzer. The straightforward design and compact nature of this circuit make it ideal for a range

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Sudha, P. Sree. "Indoor Air Quality Monitoring System." International Journal for Research in Applied Science and Engineering Technology 12, no. 10 (2024): 815–25. http://dx.doi.org/10.22214/ijraset.2024.64704.

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The awareness of the risks associated with contaminated indoor air quality is often lacking among individuals. This study employs a prototyping method, utilizing an Arduino Uno integrated with various sensors to monitor air quality. A sound buzzer alerts users when the sensor readings indicate hazardous conditions. Additionally, a Wi-Fi module connects the Arduino Uno to the internet, facilitating data uploads to the IoT platform ThingSpeak.

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Nino, Florentinus, Azahari, and Awang Harsa Kridalaksana. "Nodemcu Based Prototype Tool for Noise Detection." TEPIAN 2, no. 2 (2021): 43–48. http://dx.doi.org/10.51967/tepian.v2i2.358.

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Application of Prototype A tool for detecting noise based on NodeMCU is a prototype that can be used to detect sound noise and provide a warning if the sound exceeds the reasonable threshold that humans hear. The function of this system is to detect sound noise using the Analog Sound sensor V2. Then the data from the Analog Sound sensor V2 will be displayed in the form of a Led and if it has passed the threshold that humans hear, it will trigger turning on the buzzer as a warning and send automatically the decibel value, status and also if we want to check how much noise there is, we can type

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Fadia Haya, Anisha, Werman kasoep, and Nefy Puteri Novani. "Rancang Bangun Smart Case Sistem Monitoring Tabung Gas Elpiji Berbasis Mikrokontroler." CHIPSET 1, no. 02 (2020): 61–68. http://dx.doi.org/10.25077/chipset.1.02.61-68.2020.

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This study aims to create a system that can monitor gas cylinders where this device consists of two systems, the first is a system to measure the weight of 3kg LPG gas cylinders to find the remaining gas which will then be displayed on the LCD, and the second the system gives a notification (alarm) if there is a gas leak via SMS. This system consists of Arduino UNO Microcontroller components, Load cell Sensor, MQ-6 Sensor, and SIM800L GSM Module. For overall system testing, the load cell sensor system can display a percentage of the weight value obtained an error rate of 0%, this indicates tha

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Maiza, Fadila, Suratun Nafisah, Khansa Salsabila Suhaimi, and Ahmad Fahri Fahrezi. "Design of LPG Leakage Detection Device using MQ-2 Sensor Equipped with Hazard Warning System." Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering) 11, no. 2 (2024): 143–50. http://dx.doi.org/10.33019/jurnalecotipe.v11i2.4495.

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The use of liquefied petroleum gas (LPG) as household fuel in Indonesia has increased because it has greater heating power and equipment efficiency than other fuels. LPG is flammable and can explode if a leakage occurs and is exposed to a fire source. Therefore, explosions can be anticipated by installing a gas leakage detector equipped with a danger warning feature called Tor-G (LPG Detector) based on the NodeMCU ESP8266 microcontroller using an MQ-2 sensor with a buzzer and LED as a danger warning feature. Tor-G can detect when a gas leakage occurs and provides a danger signal in the form of

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Satria, Habib, Indri Dayana, Rahmad B. Y. Syah, et al. "Earthquake detection in mountainous homes using the internet of things connected to photovoltaic energy supply." International Journal of Reconfigurable and Embedded Systems (IJRES) 13, no. 2 (2024): 315. http://dx.doi.org/10.11591/ijres.v13.i2.pp315-322.

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The North Sumatra region is an area with the potential for earthquakes originating from volcanic and oceanic eruptions which have resulted in many fatalities. Therefore, through the application of automatic monitoring and control system technology connected to the internet of things (IoTs), it is the right solution to provide efforts to increase security for residents of the house to always be vigilant. The security enhancement method referred to in this study is a home security system protection system by anticipating earthquakes. The advantage of this tool is that it applies a notification s

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Nadia, Mahmood Hussien, Makki Mohialden Yasmin, Thanoon Ahmed Nada, Abdulghafoor Mohammed Mostafa, and Sutikno Tole. "A smart gas leakage monitoring system for use in hospitals." Indonesian Journal of Electrical Engineering and Computer Science (IJEECS) 19, no. 2 (2020): 1048–54. https://doi.org/10.11591/ijeecs.v19.i2.pp1048-1054.

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A gas leaks lead to personal and financial damage. Much effort has been dedicated to preventing such leaks and developing reliable techniques for leak detection and leakage localization using sensors. These sensors usually sound an alarm after detecting a dangerous gas in its vicinity. This paper describes a system for detecting a gas leakage from cylinders which notifies the user via the GSM network. The system consists of an LPG gas leakage detector which sends a warning signal to Arduino Uno Microcontroller. The system uses the GSM network to send notifications, a liquid crystal display (LC

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Febriani, Cornelia, Rohim Aminullah Firdaus, and FNU Dzulkiflih. "Rancang Bangun Alat Ukur Jarak Tempuh Lompat Jauh Menggunakan Sensor HC-SR04 dengan Output Website." Inovasi Fisika Indonesia 12, no. 3 (2023): 113–21. https://doi.org/10.26740/ifi.v12n3.p113-121.

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Pengukuran lompat jauh menggunakan metode manual kurang praktis digunakan. Penelitian ini bertujuan untuk merancang alat ukur jarak horizontal lompat jauh menggunakan HC-SR04 dengan hasil ukur yang dapat disimpan secara otomatis di website. Penyimpanan otomatis dimaksudkan agar pengukur tidak perlu mencatat satu per satu hasil ukur jarak lompatan di Microsoft Excel. Peneliti juga menambahkan micro switch pada rancangan alat untuk mendeteksi sah atau tidaknya suatu lompatan. Alat ini dilengkapi dengan rancangan limit switch sebagai pendeteksi sah atau tidaknya suatu lompatan. Cara kerja pada mi

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Fani, Handri Al, Sumarno Sumarno, Jalaluddin Jalaluddin, Dedy Hartama, and Indra Gunawan. "Perancangan Alat Monitoring Pendeteksi Suara di Ruangan Bayi RS Vita Insani Berbasis Arduino Menggunakan Buzzer." JURNAL MEDIA INFORMATIKA BUDIDARMA 4, no. 1 (2020): 144. http://dx.doi.org/10.30865/mib.v4i1.1750.

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Mining age and technology have led to the emergence of an innovation that can help facilitate human activities, especially for parents in controlling and looking after babies. By implementing a sound monitoring system in the baby room based on the Arduino Atmega 328 microcontroller which functions to detect noise. Data from the voice sensor is processed by Arduino via a pin. So Arduino will give instructions to Buzzer to send alarm notifications

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