NodeMCU ESP8266 Microcontroller Research Articles

Smart Sensors and NodeMCU ESP8266-Based Automated Irrigation System for Effective Water Management in Agriculture

In India, agriculture is the biggest and most essential sector. The Global Internet of Things (IoT) is a vital aspect of smart farming. Internet of Things (IoT) is the interconnection of many devices over the internet. All devices are interconnected via unique identifiers, enabling data transfer without requiring interaction between humans. A sufficient amount of water is given to the crop in agriculture at a specific time through irrigation. The primary objective of this paper is develop a controlled watering system that uses smart sensors and NodeMCU ESP8266 to improve water efficiency in plants, integrated with things of speak platform. By integrating soil moisture sensors, the system ensures that irrigation is given only when the soil penetrates a predefined dryness threshold by continuously monitoring the moisture levels in the soil. By using an optimized method, water waste is reduced and plants are given the proper amount of water for healthy growth. DHT11 sensor also monitor humidity and temperature, which enables the system to modify watering schedules in response to current meteorological conditions. These environmental elements can be implemented in the system to help it adjust to changing conditions and increase overall water efficiency. Rain sensors are used to detect rainwater. When rainwater occurs, irrigation is automatically stopped to avoid overwatering and significantly preserve water resources. The central processing unit (CPU) is the NodeMCU ESP8266 microcontroller, which extracts data collected by the sensors and regulates of irrigation system in reaction to the real-time data. This automated approach improves the accuracy of irrigation techniques while also decreasing the need for human intervention, which saves time and labour

Cost-Efficient Automated Intrusion Detection and Reporting System for Homes in Nigeria

Substantial investments are made to mitigate the persistent threat to lives and assets posed by various forms of intrusion. Automated security systems have emerged as crucial tools for safeguarding homes against intrusions in recent times. A major advantage of this is its independent ability to report human activities around homes without direct observation. However, the cost of implementing the system is not pocket-friendly to an average Nigerian given the prevailing economic situation. This research therefore seeks to develop and implement an intrusion detection and reporting system using low cost materials while maintaining a balance between quality and cost at the same time. The system architecture employs the passive infrared sensor (PIR) for motion detection, the ultrasonic sensor measures intruders’ location from the home entrance while the NodeMCU ESP8266 microcontroller is responsible for coordinating the reception and relaying of signals within the system. The system was implemented with varying distances of human presence from the security device. Reports of potential intrusion alerts were obtained within reasonable time frames (between 11 seconds and 49 seconds) on the homeowner’s mobile phone via the Blynk application. This performance demonstrates the reliability of the system for home security. The system is equally cost-efficient relative to most similar state-of-the art IoT based home security systems considered in this work. Our work therefore contributes to knowledge by proposing an affordable home security solution for a low budget Nigerian user.

Health monitoring system using ECG and PPG techniques

The demand for portable health monitoring systems has grown rapidly in recent years due to the increasing prevalence of chronic diseases and the need for continuous health monitoring. This article introduces the development and implementation of a portable health monitoring system using photo plethysmography (PPG) and electrocardiogram (ECG) technologies. The system integrates the Node MCU ESP8266 microcontroller, AD8232 ECG sensor, and MAX30100 sensor to measure vital signs such as heart rate and blood oxygen saturation level. The proposed system provides a cost-effective and efficient solution for real-time health monitoring, enabling early detection of abnormalities and timely intervention. The feasibility and performance of the system were proven through experimental tests.

Design of Water Quality Monitoring System Based on Internet of Things Technology

Water quality is an assessment of how appropriate water is for a certain use or purpose, taking into consideration various physical, chemical, and biological factors that can affect its suitability. These factors can include pH, turbidity, dissolved oxygen, temperature, and the presence of pollutants or pathogens. The outdated method has been used by scientists and researchers to monitor the quality of water from the sources. The objective of this project is to create an efficient Internet of Things (IoT) system that can various sensors to continuously monitor water quality. The system is implemented using Arduino as the microcontroller, and sensors. A real-time monitoring system that is IoT-based was done to improve the examination process of the water sample. The system device is containing a NodeMCU ESP8266 microcontroller, pH, temperature, and turbidity sensors and uses the Blynk application. The system experiment results show that the device can show different readings based on the variety of water samples from different water bodies.

Sistem Keamanan Kendaraan Jarak Jauh Menggunakan GPS Berbasis NODEMCU ESP8266

The use of motorcycles as a means of personal transportation is a practical and easy-to-use transportation option in various crowded road conditions. In general, vehicle security systems are still very weak, and additional security systems are needed to prevent theft, especially in older vehicles. To increase security on motorbikes, researchers developed a security system that can monitor the location of motorbikes that can be monitored and controlled via an Android application. In making this prototype, the NodeMCU ESP8266 microcontroller as the Internet of Things (IoT), Ublox Neo-6M GPS module, and relays to control motorcycle electricity. The GPS module is used to determine the location based on the latitude and longitude of the motorcycle directly and will be sent to the server and then displayed through the Android application. In addition to displaying location coordinates, this application can also control motorcycle electricity with NodeMCU ESP8266 to activate relays connected to motorcycle electricity to function as turning on or off the motorcycle engine and there is a location history menu obtained from the GPS module.

Development of an IoT-Integrated Cigarette Smoke Detection System Using MiCS-5524 Sensor

Cigarette smoke is one of the primary causes of indoor air pollution, leading to various adverse health impacts. To address this issue, this research aims to design of a cigarette smoke detection device using the MiCS-5524 sensor integrated with the Internet of Things (IoT). This device can detect the level of cigarette smoke in indoor spaces and provide alerts through an LCD, a buzzer, and the Blynk application. Furthermore, the device can activate an exhaust fan to remove cigarette smoke from the room. The device employs the NodeMCU ESP8266 microcontroller as the central control unit for system operation and internet communication. The MiCS-5524 sensor was chosen for its high sensitivity to carbon monoxide (CO), a major component of cigarette smoke. Test results demonstrate that the device functions effectively and accurately in detecting cigarette smoke and responding to indoor air conditions. It is anticipated that this device will contribute to improving indoor air quality and human health.

Smart monitoring technique for solar cell systems using internet of things based on NodeMCU ESP8266 microcontroller

Rapidly and remotely monitoring and receiving the solar cell systems status parameters, solar irradiance, temperature, and humidity, are critical issues in enhancement their efficiency. Hence, in the present article an improved smart prototype of internet of things (IoT) technique based on embedded system through NodeMCU ESP8266 (ESP-12E) was carried out experimentally. Three different regions at Egypt; Luxor, Cairo, and El-Beheira cities were chosen to study their solar irradiance profile, temperature, and humidity by the proposed IoT system. The monitoring data of solar irradiance, temperature, and humidity were live visualized directly by Ubidots through hypertext transfer protocol (HTTP) protocol. The measured solar power radiation in Luxor, Cairo, and El-Beheira ranged between 216-1000, 245-958, and 187-692 W/m<sup>2</sup> respectively during the solar day. The accuracy and rapidity of obtaining monitoring results using the proposed IoT system made it a strong candidate for application in monitoring solar cell systems. On the other hand, the obtained solar power radiation results of the three considered regions strongly candidate Luxor and Cairo as suitable places to build up a solar cells system station rather than El-Beheira.

IoT based Smart Watering System with Remote Monitoring and Control

This paper presents the design and implementation of an IoT-based smart watering system equipped with monitoring and control capabilities using Blynk IoT software. The system integrates various components including soil moisture sensor, water flow sensor, 12V water pump motor, relay module, and NodeMCU ESP8266 microcontroller. Through this setup, users can remotely monitor soil moisture levels, control water flow to plants, and automate watering schedules via the Blynk mobile application. This paper discusses the system architecture, hardware setup, software implementation, and presents experimental results demonstrating the effectiveness and reliability of the proposed solution. Key Words: IoT, Smart watering system, remote monitoring.

Sistem Monitoring dan Penyiraman Otomatis Pada Bibit Sawit Berbasis Android

The quality of oil palm fruits is very important, and effective seedling care is one of the techniques to produce quality oil palm seedlings. However, seedling care is often constrained by watering, because seedling owners cannot control oil palm seedlings at all times. The purpose of this project is to create a tool and mobile application used to control soil moisture and automatic watering based on android In this study, sensor testing and interviews were used as data collection methods. To determine soil moisture, this system uses a soil moisture sensor. Then the NodeMCU ESP8266 microcontroller will process the data obtained from the sensor, after which the data will be stored in real time in the Firebase realtime database. Android applications made with the Java programming language can be used for monitoring. This system can facilitate the owners of oil palm seedlings in controlling and watering the seedlings, even though they are traveling, the owner of the seedlings can control the oil palm seedlings using the Android application, so that with regular seedling care it will produce quality oil palm

SISTEM KENDALI PINTU DENGAN SENSOR SENTUH, INFRARED, DAN KIPAS MENGGUNAKAN VOICE RECOGNITION BERBASIS NODEMCU

Technology is developing rapidly and home security is very important for all householders. This door control system is designed so that house residents feel safe and comfortable when entering and leaving the house. Residents can use door magnets and touch sensors to lock doors and receive information via WhatsApp to monitor when creatures enter their homes.The design of this tool system uses a Nodemcu ESP8266 microcontroller to process data collected through touch, infrared and sound sensors. This touch sensor is used to open the door or move the servo to open the door, and the door solenoid valve is used to unlock the door. The infrared sensor will then detect when someone enters your home, a buzzer will sound, and a notification will be sent via WhatsApp. The sound sensor is used to turn the fan on and off.

Optimizing Waste Collection Efficiency by NodeMCU enabled Ultrasonic Trash Can Surveillance and ThingSpeak Dashboards

The use of inflexible route schedules for garbage collection results in inadequate waste disposal, posing environmental risks and incurring high operational expenses, including fuel costs and landfill fees, even when the waste containers are not completely full. This study utilizes a cost-effective Internet of Things (IoT) monitoring system to facilitate dynamic routing. The aim is to enhance the efficiency and frequency of waste collection by optimizing it based on real-time fill levels, rather than following fixed cycles. The prototype employs an ultrasonic distance sensor in conjunction with a NodeMCU ESP8266 micro-controller to detect the fill level of a trash can. The collected data is then transmitted to the ThingSpeak cloud platform. Real-time visualization dashboards display live data on waste levels in different containers, providing guidance for collection scheduling. The estimated scope entails conducting circuit simulation using Proteus, optimizing PCB layout, and developing an integrated IoT prototype connected to ThingSpeak for IoT analytics. Ultimately, integrating cost-effective IoT edge sensors such as ultrasonic ranging with cloud analytics dashboards greatly enhances effectiveness, sustainability, and intelligent allocation of resources in public trash collection. This results in economic and environmental advantages by reducing landfill overflow through the digitalization of smart cities.

CONTROL DRIP RATE OF INTRAVENOUS FLUIDS BASED ON HEART RATE WITH A MONITORING SYSTEM USING THINGSPEAK WEBSITE

Dehydration is a state of decreasing the amount of fluid in the body accompanied by increased heart rate. One of the treatments that must be done for dehydrated patients is to give infusions periodically, which must be supervised by medical personnel. However, controlling patient intravenous fluid drops in some hospitals or public health centres is still done manually. Based on this problem, a device can adjust the drip rate of intravenous fluids based on heart rate. This research made a prototype of controlling the drip rate of intravenous fluid based on heart rate using NodeMCU ESP8266 microcontroller, MAX30100 sensor for heart rate reading, optocoupler sensor for drip rate reading, and servo motor for roller clamp drive. From the test results, the system has been able to control the drip rate of infusion based on heart rate with a range of (80 – 89) bpm which has the number of infusion droplets (24 – 35) TPM and a range (90 – 99) bpm that has the number of drip infusions (36 – 47) TPM, then send the heart rate data and drip rate of the injection to the thing speak website every 15 seconds. Heart rate readings with MAX30100 sensors have an error of 2.51% and an accuracy of 97.49%. Meanwhile, the drip rate reading with the optocoupler sensor has an error of 0.83% and an accuracy of 99.17%.

Design and Development of Smart Agricultural Greenhouse

Food insecurity across the globe has necessitated the need to optimize crops productivity through automation and Internet of Things (IoT). This research was carried out to develop a smart greenhouse system where the soil nutrient level, air temperature and soil moisture content can be closely monitored through sensors and the Internet. The sensors – major input components of the structure – sent information to a NodeMCU ESP8266 microcontroller for interpretation, configuration and necessary actions by the output components of the smart structure. The output components of the smart structure are the liquid-crystal display (LCD), water pump, fan, heater and relay modules, while the C++ programming language was used. Remarkably, the intelligence aspect of the smart greenhouse is built on the smart algorithm. Based on the performance evaluation of the various system units, the irrigation, cooling, heating and fertilization units have an accuracy of 85%, 90%, 90% and 85% respectively. Interestingly, the performance rating of the prototype was very encouraging, which makes this smart system a reliable material to combat global food insecurity.

Rancang Bangun Sistem Pengunci Pintu Rumah Menggunakan Remote nRF24l01+ Berbasis Mikrokontroler

Home door security currently still uses a manual system using conventional door locks. The disadvantages of conventional house door locks include that the home owner must ensure that the house key is not owned by a stranger which causes the key to be easily duplicated, as well as the number of house break-ins that cause the security of the house door to be very insecure. To overcome the problems that occur regarding the security of the house door, the authors created a microcontroller-based door lock system using the nRF24L01+ remote as access control for opening and closing door locks. This door lock system uses 3 microcontrollers, including NodeMCU ESP8266 as a remote. Arduino Uno as the door lock system control unit, as well as the additional NodeMCU ESP8266 microcontroller as a data logging unit. The control unit is tasked with making decisions based on commands sent by the remote via radio frequency communication from the nRF24L01+ module. The command sent by the remote is in the form of opening and closing the door lock which comes from the input button on the remote. It also provides additional features in the form of data logging by providing input using a limit switch attached to the door. This research got the results, namely the success of the system that is able to respond in less than one second. The fastest response time gets a value of 0.14 seconds, then the longest response speed gets a value of 0.565 seconds, and the stable response speed gets a value of 0.188 seconds

Enhancing Road Safety: A Smart Speed Detection System Using IoT Technology

The Malaysian Police Force requires technological advancement to keep up with the highway thugs and illegal racers. The primary objective of this project is to deter unethical activities on the road. Thus, a simple speed sensor detection utilizing an Infra-red (IR) sensor is designed. The project leverages a NodeMCU ESP8266 microcontroller, an IR sensor detector, and Blynk application platform for controlling and monitoring using smart phone. The system operates when a vehicle or object passes the IR sensor. After detection, both Liquid Crystal Display (LCD) display and Blynk application will show the vehicle's speed. If the vehicle exceeds the speed limit, NodeMCU will notify the user's device, alerting them to the speeding vehicle. This innovative system offers several advantages to authorities compared to traditional methods of addressing road rage incidents. It enables prompt action and resolution of cases, ultimately contributing to safer road conditions and improved law enforcement capabilities.

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.

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.

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.

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.

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.