Design and Implementation of an E-Notice Board Using a NodeMCU

Abid, Md. Bakhtiar; Rumon, Mamunur Rashid; Sraboni, Tasnuba; Hossain, Romaiya; Ahmed, Farah Mahjabeen; Uddin, Jia

doi:10.1007/978-3-030-60036-5_21

Cited by 5 publications

(2 citation statements)

References 7 publications

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“…To display the realtime temperature and humidity, we used LCD placed in the outside container. We chose the 16×2 I2C LCD type because Inter-Integrated Circuit (I2C) consists of a serial clock (SCL) and serial data (SDA), which carry data information between LCD and its engineering [23].…”

Section: Hardware Setupmentioning

confidence: 99%

Design Prototype of Temperature and Humidity Control and Monitoring on Weaver Ant Cage based on Internet of Things

Farahiyah

Purnama

2021

Jurnal Ilmiah Teknik Elektro Komputer Dan Informatika

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Increasing market demand cannot meet the needs of the community, especially in the rainy season, because Kroto produced by weaver ants is of low quality and hard to find. Modern Kroto cultivation has many advantages compared to traditional searching in nature. The quality and quantity of Kroto lie in maintaining the temperature and humidity for weaver ants. The challenge is how to maintain the temperature and humidity inside the artificial nest of weaver ants. To help overcome the problems of modern weaver ant cultivation, we design and develop automated devices based on the Internet of Things (IoT) to control and monitor temperature and humidity for weaver ant culture. We chose the limitation of temperature is in between 25 o C -31 o C, and the humidity range is on the level 65% -85%. We used NodeMCU as the mainboard, DHT22 as temperature and humidity sensor, Cayenne webserver as IoT platform, and fan, humidifier, and heater for the tools to control the environment. We had conducted four tests scenario, which are sensor calibration, relay testing, actuator time testing, and delay testing. The result in temperature reading shows good accuracy while the humidity performs a huge gap of error. The humidity needs to be adjusted with the linear regression formula. Based on the relay testing, the device works perfectly fine to control the heater, the humidifier, and the fan. According to the actuator timing testing, the humidifier has the quickest time to make more humid and soothing conditions, around 5 -15 minutes. In contrast, the heater actuator needs a longer time to heat up the room. Depends on the temperature, it needs around 5 -31 minutes. The longest time was during the fan actuator to cool down the room, around 30 -90 minutes. The average delay of the IoT system is 200,01 ms and is categorized as good performance based on standard TIPHON.

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Section: Hardware Setupmentioning

confidence: 99%

Design Prototype of Temperature and Humidity Control and Monitoring on Weaver Ant Cage based on Internet of Things

Farahiyah

Purnama

2021

Jurnal Ilmiah Teknik Elektro Komputer Dan Informatika

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“…A wireless electronic bulletin board was designed and implemented to post notices in institutions. The bulletin board was configured with NodeMCU, which can instantly display all messages posted by the administration or users [7]. However, a screen is required to run this application.…”

Section: Introductionmentioning

confidence: 99%

An automated system to maintain the departmental activities over cloud: An android application approach

Murad

Adhikary

Hossain

et al. 2023

Preprint

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Educational institutions nowadays follow different administrative approaches to fulfil different departmental administrative tasks. A department of an educational institution has a lot of things to do and manage for the students and teachers. The department has to post notices on the bulletin board, keep information about students, record attendance in class, manage students’ attendance rate and results, and so on. Most educational institutions in many countries rely on paper-based administration, which requires a lot of staff and man-hours. Therefore, we have proposed an Android application for department management that has two panels, namely an admin panel and a user panel. Our proposed Android application can be used to upload messages, enrol courses and students, record attendance, set attendance percentages, and calculate results. To access the proposed Android application, a user must create an account, while a specific email and password are provided for the admin panel, i.e., teachers. The users can only see the provided information, while the administrators can modify all kinds of data in the proposed application. The administrators have the ability and permission to upload messages, record attendance, formulate attendance percentage, calculate results and perform other department specific activities. We have developed our proposed application using various technologies like Java, Firebase and Recycler Window. This Android application reduces the effort for the user and saves time for students and teachers. We strongly believe that our proposed Android application will usher in a new era in managing departmental activities in educational institutions.

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A Smart Multi-user Wireless Nurse Calling System and E-Notice Board for Health Care Management

Paul

Ahmed

Karmakar

2022

Proceedings of the Third International Conference on Trends in Computational and Cognitive Engineering

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Design and Implementation of an E-Notice Board Using a NodeMCU

Cited by 5 publications

References 7 publications

Design Prototype of Temperature and Humidity Control and Monitoring on Weaver Ant Cage based on Internet of Things

Design Prototype of Temperature and Humidity Control and Monitoring on Weaver Ant Cage based on Internet of Things

An automated system to maintain the departmental activities over cloud: An android application approach

A Smart Multi-user Wireless Nurse Calling System and E-Notice Board for Health Care Management

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