NodeMCU ESP8266 Research Articles

Design of a NodeMCU-Based Real-Time Air Quality Monitoring System Using the Blynk Application

Currently, air quality monitoring is only through satellites, so this monitor is only general; even though sometimes we need an air quality monitor to measure air quality in the room or gas emissions in motor vehicles and factories, this research uses an MQ135 sensor to measure CO2 gas emissions, a DHT11 sensor to measure humidity and a NodeMCU ESP8266 microcontroller as the central brain. The system is designed to provide accurate and efficient air quality monitoring through the Internet of Things (IoT). They are integrating Blynk as a mobile device monitoring application that offers easy access to real-time air quality data. The Blynk interface allows users to monitor air conditions easily, receive notifications, and access data history. Based on the experimental results and the accuracy of the integrated temperature measurement, the system provides a reliable solution for comprehensive air quality monitoring in various environments.

IOT-ENABLED SMART LIGHTING SYSTEM WITH INTEGRATED PULLEY MECHANISM FOR HOME AUTOMATION

Lighting systems play a fundamental role in our daily life operations. However, the typical light bulb has a finite lifespan and is often installed in hard-to-reach locations, posing a challenge when it needs replacement. To address this issue, we've developed an IoT bulb holder equipped with a pulley mechanism designed to lower itself to a user-accessible height. This innovative system also features built-in light control functionality. Our solution integrates a microcontroller with a Wi-Fi module, a mechanical motor for the pulley mechanism, and an Android app. The Android app serves as the central control hub for the system. The microcontroller manages the DC motor's position and light control, responding to instructions from the app. Light control is achieved through a relay circuit, while the pulley mechanism is operated using a DC motor with a worm gearbox. The worm gearbox was chosen for its self-locking capabilities, eliminating the need for continuous power to maintain the light bulb at the desired height. 3D modeling software was utilized to create the casing and gearing components. Tests with two different microcontrollers: NodeMCU ESP8266 and ESP32 have been conducted. A comparative analysis revealed that the ESP32 is the superior choice for IoT projects due to its enhanced Wi-Fi efficiency and connectivity capabilities.

DEVELOPMENT OF WATER LEVEL MONITORING APPLICATIONS IN SMART HOME SYSTEMS USING FLUTTER

Monitoring the water level at smart home system is an effort to increase the comfort and safety of its residents. Therefore, this study aims to design and develop a water level monitoring application that can be implemented to smart home system using the ESP8266 NodeMCU, HC-SR04 ultrasonic sensor, MQTT protocol, and the Flutter framework. By implementing Flutter as an open-source framework for creating applications, it can be monitor water levels in real-time accessed from various platforms: such as Android, iOS, Web, Windows, macOS, and Linux. The test expected to function correctly and provide accurate and real-time information regarding water levels in the surrounding area and can be accessed using various platforms. This research likely to be successful because previous studies conducted the same components in this study.

PENJADWALAN DAN PEMBERIAN PAKAN IKAN OTOMATIS BERBASIS INTERNET OF THING MENGGUNAKAN NODEMCU ESP8266 DAN APLIKASI BLYNK STUDI KASUS : TOKO FISH FRIENDLY

The utilization of the Internet of Things (IOT) in everyday life has penetrated into various fields, including in the field of animal husbandry. In this study, the authors raised a problem found in the Fish Friendly fish shop as a research site. The main problem found in this study is that farmers have difficulty in feeding which is carried out regularly and on a schedule. Sometimes in certain conditions, farmers cannot feed fish according to their schedule, this can cause a decrease in the quality of fish health so that it has a negative impact on the selling price of fish. This factor can be very important considering that fish feed must be maintained in quality and quantity. Based on the existing problems, a solution was created to design and make a tool by utilizing an automation system using IoT (Internet of things). To get the complete data needed, the author uses interview and field observation methods, besides that this research uses NodeMCU ESP8266 microcontroller devices and Servo Motors to design automatic feeders, as well as the use of the Blynk application as a remote control via a smartphone. The result of this study is that the tool made can provide feed to fish according to a predetermined schedule so that feeding can work periodically and effectively. In addition, remote control carried out through the blynk application runs smoothly, so the tool can work without manual control anymore.

Internet of things-based garbage monitoring system integrated with Telegram

<p>This paper presents the development of smart garbage monitoring system usin g internet of things (IoT) to keep the environment clean thus reducing cleaners’ burden. The present era is characterized by smart cities, where precision and organization are the norm. This initiative was launched because population is progressing rapidly, increasing more garbage hence esclating cleaner’s frequency of dustbin checking daily whether the dustbin is full or not which mean more labour costs. The main purpose of this researc h is to develop a systematic garbage monitoring system which can help cleaners schedule their work in monitoring and picking up garbage from dustbins. It used node microcontroller (NodeMCU) ESP8266 Wi - Fi module as the main controller to control ultrasonic and rain input sensors and provide notifications via Telegram. A limit switch is used to detect whether the lid is open or closed. When the lid is closed, the ultrasonic sensor is activated and measures the garbage distance depending on the amount. If an overrun of the maximum amount is detected, the red - light emitting diode (LED) will turn on that connects to the Wi - Fi module, which sends notification to the cleaners. As a result, the IoT based garbage monitoring system was fully functioned and accomplish ed its objectives.</p>

Internet of things-based floor cleaning robot

<p>Internet of t hings (IoT) based floor cleaning robot (FC - Rob) is a floor cleaning robot that uses a smartphone to assist users, primarily housewives and mothers, in completing their chores. The NodeMCU ESP8266 serves as the robot’ s “brain” and is controlled by a smartphone application for the purpose of this research. In accordance with current trends, a n iOS and Android application using Blynk has also been developed for users to control the robot’ s movements, making it the ideal solution for time - crunched individuals. FC - Rob is propelled by two d irect current (DC) motors to ensure comprehensive floor cl eaning. The results of this research are strengthened by tests conducted on battery life and two types of fabric, as well as a comparison with two types of commercially available robots. The positive findings of these tests on this robot demonstrate its effectiveness and efficiency in cleani ng houses, as well as its reasonable cost and educational value for children.</p>

Leak Monitoring in Split Duct Air Conditioner Based on Internet of Things

Water accumulation in air conditioning (AC) drain pans can lead to corrosion and subsequent leaks, impacting AC system performance. This study focuses on implementing a monitoring system to track water levels and promptly discharge water to prevent corrosion. Using a research and development approach, the study evaluated the water level sensor's performance in measuring water levels and the pump's effectiveness in discharging water at specific levels, ensuring overall system reliability. The system utilized the NodeMCU ESP8266 microcontroller, a water level sensor, an LCD I2C 16x2 display, and Blynk as a smartphone-based monitoring platform. The findings demonstrated the effective functionality of the device in evacuating accumulated water from the AC evaporator. This was achieved through the activation of a water pump when the water level reached a threshold of 2 cm, thereby preventing potential leakage in the air conditioner's storage gutter.

Design of The WBAN in The Mobile Health Monitoring System

WBAN (Wireless Body Area Network) technology is used in this study to provide an integrated health monitoring platform. The device utilizes MLX90615 for measuring body temperature, a Blood Pressure Sensor for measuring blood pressure and pulse rate, and a MAX30102 Sensor for measuring blood oxygen and blood glucose levels. The output of this utility is displayed on an OLED screen and is controlled by the NODEMCU ESP8266. The test reveals an accuracy of 94.8%, indicating that the instrument can provide accurate results and has a relatively low error rate on each sensor. Heart Rate Error on Blood Pressure Sensor 0; Spo2 Error on MAX 30102 Sensor 1; and Blood Sugar Error on MAX 30102 Sensor 2.0. Real-time health monitoring that is more accurate and efficient. This device has the potential to be a practical solution for routine health monitoring and provides significant benefits for maintaining health.

Rancang Bangun Alat Pemberi Makan Entok Otomatis Berbasis Internet of Thing (IoT)

A system using Internet of Things (IoT) technology has been developed to assist farmers in efficiently feeding their pet ducks. This system based on the Internet Of Things (IoT) method, involves various components such as loadcell and ultrasonic sensors, servo motors, a real-time clock, LCD display, power supply, and the NodeMCU ESP8266 microcontroller. The feeding process starts by filling the feed into a container hopper. The ultrasonic sensor detects the feed level and sends this information to the Blynk application. The application then opens servo motor 1 to drop the feed into a small container with a loadcell. The loadcell sensor measures the weight of the feed, and then servo motor 1 closes and servo motor 2 opens until the feed runs out, at which point servo motor 2 closes. The system continuously repeats this process and sends notifications to the Blynk application when the hopper is empty. Overall, this system helps to streamline the feeding process for pet ducks and improve efficiency for farmers.

IOT based Energy Monitoring for Practical Loads using NodeMCU

Electrical energy monitoring is increasingly important nowadays for residential and commercial usage. The energy meters are installed in consumer’s houses to track their energy usage. There are many chances of human mistakes for every electricity consumer while recording the manual energy meter reading in their houses. Also, the consumer does not have updated information about current electricity usage in each hour, day, and month. To overcome the above problems, the system is developed to remotely monitor from any world location using the NodeMCU and Arduino IDE. The energy monitoring is carried out by using the Node MCU, Arduino IDE, and PZEM-004T sensor. The PZEM-004T module is coupled to the Arduino controller. The sensor module receives a signal from the CT coil which is connected to load. The load parameters such as voltage current power etc., are measured and transferred to the Arduino. A NodeMCU ESP8266 is utilized as a Wi-Fi chip system. By using a Wi-Fi connection and the internet, the acquired data is sent to Thing Speak to save in the cloud to monitor the measured parameters remotely. The power analyzer instrument is also used to measure the real-time parameters consumed by the load which is used to cross verification and compare with the sensor measuring parameters. The passive load resistance, inductance, and 100-watt lamp loads are experimentally connected and tested. The load consumed electrical parameters such as current, voltage, power, power factor, real power, and frequency are monitored in online. Energy monitoring online may reduce the consumer's mistakes by recording the parameters and consumers can know each hour, day, and month's energy consumption up to date according to their usage.

RANCANG BANGUN SISTEM MONITORING DAN CONTROLLING SUHU COOL BOX VAKSIN MENINGITIS MPSV4 BERBASIS IoT

Meningitis is generally an infectious disease of the lining of the brain and spinal cord with manifestations of fever and stiff neck. Prevention efforts for meningitis include vaccination. Meningococcal polysaccharide vaccine (MPSV4) is a type of quadrivalent meningitis vaccine recommended to control meningitis outbreaks. In storage, this vaccine uses a cold chain and cool box with a temperature between 2-8˚C. For vaccination activities, the vaccine is stored in a cool box with a cool pack provided to maintain temperature stability in the cool box. A cool pack itself is a rectangular plastic container that is filled with water and then cooled in a refrigerator at a temperature of 2-8°C for a minimum of 24 hours. From the existing problems, the author had the idea to create an IoT-based MPSV4 Meningitis Vaccine Cool Box Temperature Monitoring and Controlling System Design. The working system of this tool, namely TEC, will maintain the cool box temperature according to needs. If the dht11 detects that the temperature is too high then both TECs will turn on, whereas if the temperature is stable then one of the TECs will turn off. The temperature inside the cool box will be displayed on the LCD and also sent via the NodeMCU ESP8266 to the Firebase database which will then be displayed on the smartphone in real time.

Sistem Monitoring Suhu Lab Komputer Universitas Bina Darma Berbasis IOT Mobile Android Menggunakan Arduino

This study aims to create a computer lab temperature monitoring tool using the DHT11 sensor and the NodeMCU ESP8266 device based on the internet of things integrated with Android mobile devices. The system research and development method used in this research is the R&D (Research and Development) method. Research and Development (R&D) is a research method used to produce certain products, and test the effectiveness of these products. This system will be designed and developed to monitor temperature via an Android smartphone. The system consists of several components, the main component is NodeMC ESP8266 which will obtain an input signal from the DHT11 temperature sensor, after which the data is stored in a database using the internet network via wifi. The increase in temperature when the engine is operating is recorded by the sensor and will be sent to the microcontroller which can be accessed via an android smartphone mobile device. Testing this system will be carried out into two parts, namely the first is testing on hardware such as the functionality of the tools that have been made, especially the sensitivity of the DHT-11 sensor in reading temperature and humidity, the second is Blackbox testing on software, namely testing whether there is a software failure in reading sensor values. sent

ALAT MONITORING SUHU DAN DETAK JANTUNG MANUSIA BERBASIS INTERNET OF THINGS MENGGUNAKAN BLYNK

The purpose of this research is to create and design a way to monitor temperature and human heart rate based on the Internet of Things using blynk. The process of making an Internet of Things-based human heart rate and temperature monitoring device begins with hardware design by connecting all tools, namely, NodeMCU Esp8266, Base Board, Mlx90614, Max30100, Oled, Led, and Buzzer followed by designing software on Arduino and the blynk application where later the measurement results will be compared with the actual tool commonly used, namely the Tensimeter. Based on previous research conducted by Agung (2019), a heart rate and body temperature measuring instrument was made using the Ds18b20 temperature sensor and the Max30100 sensor with Bluetooth Hc-05 communication with an accuracy of 99.1% on heart rate and 99.4% on body temperature, and previous research conducted by Jarot (2021), heart rate measurements were carried out with a pulse sensor 3 times with an error of 16.7 – 20%, as well as previous research conducted by Muhlis (2019). 2017), measurements of heart rate and body temperature were carried out wirelessly with a pulse sensor using 10 objects with an error of 4.94% and using an LM35 with 10 objects with an error of 1.66%. In this study using 3 different people objects which were measured 3 times for each object. with an average error percentage of 0.91% for body temperature and 2.90% for heart rate. after going through the process of hardware design and software design, we have succeeded in designing a temperature monitoring device and human heart rate that can be monitored remotely using the blynk application and has functioned properly and works according to its function and has the advantage of being easier to monitor because it is based on the Internet of Things in real time and has very accurate accuracy with measuring instruments commonly used compared to previous studies.

Real-time soil monitoring and irrigation system for taro yam cultivation

<span>The yam cultivation industry faces hurdles in satisfying the world’s rising demand. Meanwhile, agricultural activities encounter issues such as monitoring systems for soil composition that are not directly integrated with the irrigation system. Hence, this research aims to develop an irrigation and soil monitoring system using NodeMcu ESP8266 for taro yam cultivation. <br /> A soil composition and irrigation device were developed using NodeMcu ESP8266 to control the irrigation system autonomously. Then, the real-time monitoring systems using Blynk 2.0 was designed. The final method is used to test the irrigation and soil monitoring system in a taro yam growing area. The results show that the irrigation and soil monitoring system reduced water usage by about 32.5%, as the 3.6 liters of water used daily before applying the irrigation and soil monitoring device was reduced to 2.43 liters per day. In conclusion, the developed device can conveniently display the ambient air’s humidity, temperature, and soil moisture conditions on smartphones and desktops. In addition, this system can maintain soil moisture according to a set value, which can prevent excessive water use for taro yam cultivation.</span>

Development of Artificial Stingless Bee Hive Monitoring using IoT System on Developing Colony

The trend of stingless bees’ farm in Malaysia has increased recently as it has been proven that its honey gives various benefits to human beings. This trend requires beekeepers to do more frequent inspections of beehives. However, the current practice of opening the cover to inspect the colony and honey will disrupt colony activity. According to a recent study, these stingless bees can only survive between 22 and 38 degrees Celsius, and harsh weather conditions might lead to the collapse of bee colonies. In order to ensure a consistent honey production, the IoT monitoring system will be implemented on an artificial stingless beehive. The system is equipped with an embedded system that utilizes a NodeMCU ESP8266, temperature and humidity sensors, and load cell sensors. Next, honey compartment weight, temperature and humidity inside stingless beehive, and temperature and humidity outside stingless beehive will be uploaded to the Internet of Things (IoT) platforms, namely Thingspeak and Cayenne. The data is sent to Thingspeak via the REST API while to Cayenne by the MQTT API. All data from the artificial stingless bee hive indicating the occurrence of colony rising and has been uploaded to the IoT platform. By analysing the data that were recorded for 13 days, all of the input data such as the weight of the honey compartment, the temperature in the hive, and the humidity in the hive, display its respective characteristics. For the honey compart weight, it has been found that the stingless bee colony is rising as a result of the increasing honey and colony in the compartment weight. Regarding the hive temperature, it has been determined that the temperature inside the hive is stable around 26°C to 38°C in normal weather conditions. Whereas for humidity inside the hive, it is remained between 76.5% and 85.6% due to the moisture from the honey inside the compartment. Lastly, these results indicate that the colony living in the artificial hive of stingless bees is healthy and growing.

Lighting Intensity Controller Design Using Node Mcu Esp-8266

Controlling lights using the Internet is one of the uses of the Internet of Things concept. This light intensity control system is an alternative to saving electricity. Currently, the use of smartphones is no stranger to the broader community as well as the use of messaging applications such as Whatsapp. This research develops a prototype that applies the concept of remote control to a light control system and monitors light intensity that utilizes the NodeMCU ESP8266 microcontroller and is also a wifi module and uses a relay instead of a switch and also a servo that maintains light intensity. System control uses a smartphone and Whatsapp application to send commands to the microcontroller. The results of testing this prototype can work and function properly, realizing a remote light control system turns off and turns on the lights and adjusts the light intensity through commands sent via the Whatsapp application.

Monitoring Lokasi Komponen Alat Berat Berbasis Internet Of Things Pada PT. Thiess BSF Batakan

Abstract— In the digital era like today, every company is competing to innovate to reduce operational costs and increase productivity, one of which is PT. Thiess. Indirectly this also has an impact on the performance of every employee in the company to speed up and maximize work processes with minimal human resources without reducing aspects of occupational safety and health from both government regulations and company standards. As one of the employees who also acts as a researcher at PT. Thiess Balikpapan Support Facility (BSF), the researchers will discuss the problems in finding heavy equipment components. Based on the context of the difficulties described above, researchers will examine the use of Global Position System (GPS) technology. The process of making this prototype uses the NodeMCU ESP8266 microcontroller and GPSMV2 which also functions as a connection to the internet. The results of searching for GPS coordinates are made in the form of localhost using XAMPP, can be viewed in web form and forwarded to Google Maps.

Three-Level Car Security System with GPS Tracker Using IoT

Nowadays, car theft is common and because of that, there is a need to invest on a car security system. Hence, this work focusses on developing a Three-level car security system with GPS Tracker using IoT. Arduino Mega 2560 module act as a microcontroller for RC522 RFID module and R307 fingerprint scanner module which is for the first and second level security. A 4×3 matrix keypad and NEO-6M GPS are integrated with the NodeMCU ESP8266 Wi-Fi module for the security and GPS tracking system. The car security system consists of three level security which are RFID tag, fingerprint scanner and keypad password. Upon entering the car, the owner has to tag the RFID before scanning the fingerprint and entering the password. The owner is given three chances to enter the password or else, the GPS tracking is activated. In worst case scenario, the thief might enter the car by force and steal the car. In this case, the owner shall receive a notification via text message on Blynk application and email for second notification. Furthermore, the location of the car can also be obtained from the NEO-6M GPS tracking system which is linked to the Blynk application on the owner’s mobile phone. The Blynk application shall display the location of the car on Google maps together with its latitude and longitude. It is shown from this work that the car security system provides a sufficient level of security to avoid car theft. In addition, the GPS tracking system is able to detect the location of the car which is displayed on the Blynk application installed in car owner’s mobile phone.

Perancangan Sistem Otomatis Pemberi Pakan Ikan Berdasarkan Usia Berbasis IoT

Cultivating catfish uses an artificial pond which is in great demand among the community. Most of the people who have jobs other than breeders choose this job to increase their income. Today's technological developments and advancements have a significant impact on how human society conducts every action. The authors created a program and were interested in using the term "Design of Automatic Catfish Feeders Based on IoT-Based Age" based on the background described above. This tool system makes use of the NodeMCU ESP8266 microcontroller, which performs dual roles as a WI-FI network receiver and a data processor for a WI-FI network system. This tool system uses the RTC module as a time reader to provide fish feed automatically in the morning and evening and this tool system can then be controlled using a smartphone and the NodeMCU application to provide feed using the IOT system.

PERANCANGAN DAN IMPLEMENTASI SISTEM PENDETEKSI DAN PERINGATAN KEBAKARAN BERBASIS IOT MENGGUNAKAN NODEMCU ESP8266 DAN SENSOR API

Control and monitoring systems that use the Internet-of-Things (IoT) can be found in everyday life, for example, in smart home applications, smart transportation, and smart cities. IoT-based monitoring of environmental conditions both indoors and outdoors is generally carried out to reduce the risk of unwanted events. One example of an unwanted event is a fire. Fires can occur in houses, office buildings, rice fields, or forests. In order to help provide early warning of a flame that can cause a fire, this study aims to design and implement an IoT-based fire detection and warning system using the NodeMCU ESP8266 and a flame sensor. The sensor used is an infrared sensor that will detect infrared light radiation coming from a fire. The test results show that the system successfully detects the presence of fire up to 50 cm from the fire sensor and can be monitored via thinger.io. Additionally, notifications from thinger.io via e-mail and Telegram to users were successfully executed.