scholarly journals Designing a Lecture Room Monitor System with an Android Application Based on the Chip's ESP8266

2020 ◽  
Vol 5 (2) ◽  
pp. 80-87
Author(s):  
Ari Yuliati ◽  
Fajar Hafid Abdilah ◽  
Eddy Samsoleh
Keyword(s):  
Time Delay ◽  
Monitoring System ◽  
Low Cost ◽  
The Internet ◽  
Monitor System ◽  
Android Application ◽  
Reliable Tool ◽  
Lecture Room ◽  
The Status ◽  
Manual Methods

The classroom monitoring system with an android application based on the ESP8266 chip was created to solve problems on campus in finding unused rooms and to provide solutions to the problems of finding classroom thus far by using inefficient manual methods. The monitor system was made to determine the status of classroom usage with a passive infrared (PIR) sensor which functions to detect human presence in the room and a light sensor with a Light Dependent Resistor (LDR) to detect the use of the projector in the room. The two sensors are connected to the ESP8266 chip which is connected to a realtime database via the internet. The android application is specifically made to access monitoring data stored in a realtime database throughout it is connected to the internet. The results of this system test the PIR sensor reaches a maximum distance of 4 meters, a time delay of about 3 minutes, a reliable tool, and low cost.  

scholarly journals An IoT based Low-cost Weather Monitoring System for Smart Farming

2021 ◽  
Author(s):  
L.P.S.S.K. Dayananda ◽  
A. Narmilan ◽  
P. Pirapuraj
Keyword(s):  
Liquid Crystal ◽  
Mobile Phone ◽  
Real Time ◽  
Monitoring System ◽  
Liquid Crystal Display ◽  
Low Cost ◽  
Weather Conditions ◽  
Weather Data ◽  
The Internet ◽  
Arduino Uno

Background: Weather monitoring is an important aspect of crop cultivation for reducing economic loss while increasing productivity. Weather is the combination of current meteorological components, such as temperature, wind direction and speed, amount and kind of precipitation, sunshine hours and so on. The weather defines a time span ranging from a few hours to several days. The periodic or continuous surveillance or the analysis of the status of the atmosphere and the climate, including parameters such as temperature, moisture, wind velocity and barometric pressure, is known as weather monitoring. Because of the increased usage of the internet, weather monitoring has been upgraded to smart weather monitoring. The Internet of Things (IoT) is one of the new technology that can help with many precision farming operations. Smart weather monitoring is one of the precision agriculture technologies that use sensors to monitor correct weather. The main objective of the research is to design a smart weather monitoring and real-time alert system to overcome the issue of monitoring weather conditions in agricultural farms in order for farmers to make better decisions. Methods: Different sensors were used in this study to detect temperature and humidity, pressure, rain, light intensity, CO2 level, wind speed and direction in an agricultural farm and real time clock sensor was used to measured real time weather data. The major component of this system was an Arduino Uno microcontroller and the system ran according to a program written in the Arduino Uno software. Result: This is a low-cost smart weather monitoring system. This system’s output unit were a liquid crystal display and a GSM900A module. The weather data was displayed on a liquid crystal display and the GSM900A module was used to send the data to a mobile phone. This smart weather station was used to monitor real-time weather conditions while sending weather information to the farmer’s mobile phone, allowing him to make better decisions to increase yield.

scholarly journals IoT Based Monitoring System for White Button Mushroom Farming

Proceedings ◽  
2019 ◽  
Vol 42 (1) ◽  
pp. 46
Author(s):  
Arjun Subedi ◽  
Achyut Luitel ◽  
Manisha Baskota ◽  
Tri Dev Acharya
Keyword(s):  
Monitoring System ◽  
Environmental Conditions ◽  
Agricultural Practices ◽  
The Internet ◽  
Button Mushroom ◽  
Development Environment ◽  
Modern Agriculture ◽  
White Button Mushroom ◽  
The Status ◽  
Micro Controller Unit

In Nepal, most of the farmers depend upon traditional agricultural practices. Adapting modern agricultural technology plays an important role in improving overall efficiency as well as the productivity of their yields. In modern agriculture, the Internet of Things (IoT) connects farmers to their farm via sensors so that they can easily monitor the real-time conditions of their farm from anywhere. The White Button Mushroom is a widely cultivated crop among Nepalese farmers. Although being the most consumed and cultivated crop, it is still overshadowed by the traditional cultivation approach, which is resulting in low productivity, high manpower efficiency, and more effort and cost. This work aims to develop a monitoring system to monitor the environmental conditions of a mushroom farm. It enables a user to monitor crucial factors such as temperature, humidity, moisture, and light intensity on a mushroom farm through the end devices. White Button Mushroom requires an optimum temperature ranging from 22 to 25 °C and humidity from 70% to 90%. Sensors are placed at fixed locations and spots of the farm. Then, the sensors measure the status of parameters, which are transmitted to the remote monitoring station via a low power Node MCU (micro-controller unit). Thus, obtained data are stored in a cloud platform. The codes for the controller are written in the Arduino programming language, debugged, compiled, and burnt into the microcontroller using the Arduino integrated development environment. The result shows successful monitoring of environmental conditions accessing the Internet from anywhere. It minimizes human efforts and automates production, which could be beneficial to Nepalese farmers.

scholarly journals LOW-COST TEMPERATURE AND HUMIDITY MONITORING SYSTEM IN HOSPITAL AMBIENCE

2020 ◽  
Vol 5 (6) ◽  
Author(s):  
Flávio Rocha da Fonseca ◽  
Patrícia Pereira Prates ◽  
Bruno Prado Morais ◽  
Marcel Veloso Campos
Keyword(s):  
Monitoring System ◽  
Human Error ◽  
Low Cost ◽  
Capacitive Sensor ◽  
The Internet ◽  
Cost System ◽  
Temperature And Humidity ◽  
Communication Module ◽  
Time Variables ◽  
Humidity Monitoring

A temperature and humidity monitoring system is to check and show the climaticvariances of the hospital’s ambience continuously as well as communicate with the professional responsible for obtaining this type of information. The study proposes a low-cost system that read both temperature and humidity through a capacitive sensor with an accuracy of ±2% relative humidity (max ±5%) and temperature precision < ±0.5 o Celsius for monitoring hospital departments such as Central Sterile Supply Department, Transfusion Agency and Surgical Center. The microcontroller receives the data from the sensor and sends it to the internet communication module, which shows the information to the user. The method used nowadays is done by manually populating tables which offer the risk of human error or data loss. The proposed system also consists of a web platform and an Android application that shows the real-time variables and generates reports of readings and alerts to unwanted variations. It could be able to modernize the process of monitoring the hospital’s departments using the Internet of Things (IoT).

Smart Health Monitoring System

2020 ◽  
Vol 17 (5) ◽  
pp. 2261-2265
Author(s):  
P. Ezhilarasi ◽  
S. Rajeshkannan ◽  
P. Gokulaprasath
Keyword(s):  
Heart Rate ◽  
Monitoring System ◽  
Health Monitoring ◽  
Heart Attack ◽  
Death Rate ◽  
The Internet ◽  
Health Monitoring System ◽  
The Status ◽  
Smart Health ◽  
Growing Population

This paper proposes a Smart Health Monitoring System (SHMS) which monitors and takes care of patient's health. Nowadays in hospital, taking care of patient is a big task because of growing population and also regular check-ups are not at all possible. The percentage of death rate by only heart attack is 24.8%, which is not higher but these death rate can be reduced by monitoring the condition of patient's heart every second continuously. This can be achieved with the help of a technology called Internet of Things (IoT). The concept of IoT is that it can connect any device with the internet. Here the sensor can measure the heart rate and connects to the internet. Then it will update the status of the patient's heart to the person who wants to monitor the patient. Hence the prevention of death due to heart attack is being introduced. This idea can also be implemented for workers in industry

scholarly journals Implementasi Teknologi Internet of Things Pada Sistem Pemantauan Kebocoran Gas LPG dan Kebakaran Menggunakan Database Pada Google Firebase

2020 ◽  
Vol 12 (1) ◽  
pp. 34-40
Author(s):  
Abi Sabila Mustaqim ◽  
Danny Kurnianto ◽  
Fikra Titan Syifa
Keyword(s):  
Internet Of Things ◽  
Monitoring System ◽  
Data Transmission ◽  
The Internet ◽  
Android Application ◽  
Liquefied Petroleum Gas ◽  
Safety Standards ◽  
Gas Leak ◽  
Gas Leaks ◽  
The Internet Of Things

Fire due to  Liquefied Petroleum Gas (LPG) gas leak is one of the disasters that still often occurs in the community. Community ignorance of safety standards in using LPG gas  is one reason. Fires can be prevented if at the time of the LPG gas leak can be detected earlier. Therefore we need a system that can monitor the condition of gas leaks and fires remotely. Internet of things (IoT) technology can be applied to this monitoring system so that information on LPG gas leaks and fires can be monitored remotely. The Internet of Things (IoT) based LPG and Fire leak monitoring system is a concept that utilizes internet connectivity between smartphone devices connected to sensor devices. The devices used to support this system include NodeMCU ESP8266 as a microcontroller and as a liaison to the internet, MQ-6 gas sensors and flame sensors as sensors for detecting gas and fire leaks, buzzers as alarms, and fans as neutralizing gas levels in the room. Data obtained by the sensor will be uploaded to the database via the internet and can be accessed through an android application. The results of the design show that the android application can display notifications when a gas leak or fire occurs. In testing the performance of data transmission, the results show that the highest data transmission delay is 64,61 seconds, and the lowest delay time is 61,56 seconds, the highest throughput value is 747,6 bits/second, and the lowest value is 285,4 bits/second.

scholarly journals Remote PC Wake-On Design Manufacture in Mujahidin Mosque at Candi Mendut

2021 ◽  
Vol 3 (3) ◽  
pp. 113-126
Author(s):  
Rizki Priya Pratama
Keyword(s):  
User Interface ◽  
Electronic Devices ◽  
The Internet ◽  
Android Application ◽  
Turn On ◽  
The Status ◽  
Android Applications ◽  
To Receive ◽  
Internet Network

There are several methods to turn on a PC from other places, one of which is WOL (wake-on lan). This method requires modem configuration to enable WOL and port forwarding features. However, if it is not possible, there is one method offered by the researcher. The method is creating a system that functions to turn on the PC via the MQTT protocol. This system consists of electronic devices and android applications. Both can be connected to the internet network. The function of this device is to connect the PWRBTN and GND pins for 0.3 seconds. While the android application "Remote wake-on PC Masjid Mujahidin" is a user interface to receive and send data to the device. From the experiment, it was found that this device was controlled from the internet with an android application successfully. In addition, there is information about the status of the PC, the system voltage on the device, and the temperature and voltage of the PC room on the android application. All this information is successfully transmitted from the PC-enabled device to the android application. Terdapat beberapa metode untuk menghidupkan PC dari keadaan mati/off,  salah satunya adalah WOL (wake-on lan). Metode ini membutuhkan konfigurasi modem untuk mengaktifkan fitur WOL dan port forwarding. Namun, apabila tidak bisa, terdapat satu metode yang ditawarkan oleh peneliti. Metode tersebut adalah sebuah sistem yang berfungsi untuk menghidupkan PC  melalui protokol MQTT. Sistem ini terdiri dari sebuah perangkat elektronik dan aplikasi android  yang dapat terhubung pada jaringan internet. Perangkat ini bertugas untuk meng-on-kan PC dengan cara menghubungkan pin PWRBTN dan GND selama 0,3 detik. Sedangkan aplikasi android “Remote wake-on PC Masjid Mujahidin” sebagai user interface untuk menerima dan mengirimkan data ke perangkat. Dari pengujian, didapatkan bahwa perangkat ini berhasil dikendalikan dari internet dengan aplikasi android.   Selain itu juga, terdapat  informasi mengenai status PC, tegangan sistem pada alat serta suhu dan tegangan ruang PC pada aplikasi android. Semua informasi ini berhasil dikirimkan dari peralatan wake-on PC ke aplikasi android.

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