Article Per Year (5 Year)
p-Index From 2021 - 2026
1.235
P-Index
This Author published in this journals
All Journal International Journal of Informatics and Communication Technology (IJ-ICT) Jurnal Informatika dan Teknik Elektro Terapan Indonesian Journal of Electrical Engineering and Computer Science Just TI (Jurnal Sains Terapan Teknologi Informasi) Dinamika Informatika: Jurnal Ilmiah Teknologi Informasi Journal of Engineering, Electrical and Informatics
Rizal, Ansar
State Polytechnic Of Samarinda
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering

Published : 9 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search
Journal : Journal of Engineering, Electrical and Informatics

 1 
Design and Development of an ESP8266-Based Digital Thermometer Using a DHT22 Sensor with OLED Display Output Janeta Wahyu Hidayah; Hari Purwadi; Ansar Rizal
Journal of Engineering, Electrical and Informatics Vol. 6 No. 1 (2026): Februari: Journal of Engineering, Electrical and Informatics
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jeei.v6i1.6661

Abstract

The advancement of microcontroller technology enables the development of accurate and practical temperature measurement devices. This study aims to design and build a digital thermometer based on ESP8266 using a DHT22 sensor to measure air temperature and humidity in real time, with the measurement results displayed on an OLED screen. The research methodology includes circuit design, microcontroller programming, sensor calibration, and system testing by comparing the measurement results with reference instruments. The test results indicate that the system operates stably and responsively. The average temperature measurement deviation compared to the reference thermometer is 6.26 °C , while the average humidity measurement deviation compared to the digital hygrometer is 4.56 %RH . These results indicate that the DHT22 sensor provides acceptable accuracy and remains within tolerable limits for environmental monitoring applications
An Internet of Things (IoT)-Based Room Temperature and Humidity Monitoring System Using ESP8266 and DHT22 Sensors Syelviana Meisyaroh; Hari Purwadi; Ansar Rizal
Journal of Engineering, Electrical and Informatics Vol. 6 No. 1 (2026): Februari: Journal of Engineering, Electrical and Informatics
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jeei.v6i1.6670

Abstract

Monitoring room temperature and humidity is an important aspect to maintain comfort and environmental quality in the room. This research was conducted with the aim of implementing an Internet of Things ( IoT )-based room temperature and humidity monitoring system using an ESP8266 microcontroller and a DHT22 sensor. The system was designed to be able to read temperature and humidity data in real-time, then send it to the ThingSpeak platform via the internet network. The research method includes hardware design, software development, and system performance testing in closed room conditions. Testing was carried out by collecting data at several observation times to see the stability of sensor readings and the data transmission process. The test results showed that the system could run well and stably, with an average temperature of 30.9 °C and an average humidity of 81.9%, and the data was successfully displayed in real-time on the ThingSpeak dashboard without significant data loss. Based on these results, the developed system can be used as a simple and applicable IoT -based room temperature and humidity monitoring solution.
Monitoring Soil Moisture in Chili Plants on a Household Scale Based on the Internet of Things (IoT) Using NodeMCU ESP2866 and Soil Moisture Tiara Elmanda; Ansar Rizal; Hari Purwadi
Journal of Engineering, Electrical and Informatics Vol. 6 No. 1 (2026): Februari: Journal of Engineering, Electrical and Informatics
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jeei.v6i1.6678

Abstract

This study designs and implements a soil moisture monitoring system for household-scale chili plants based on the Internet of Things (IoT) using NodeMCU ESP8266 and soil moisture sensors . The system was developed to assist users in monitoring soil moisture conditions accurately to support more efficient chili plant care. The soil moisture sensor is used to detect soil moisture levels, then the data is processed by NodeMCU ESP8266 and sent via a Wi-Fi network to the IoT platform so that it can be monitored in real-time . System testing was carried out on chili plants planted in pots by observing the sensor reading response in various soil conditions. The test results showed that the system was able to monitor changes in soil moisture stably and display information with a good response. The implementation of this system on a household scale is considered effective in assisting plant watering decisions and reducing the risk of water shortages or excesses. The designed system has the potential to be further developed by adding automatic control features and cloud- based data storage to support the implementation of sustainable smart agriculture.
Co-Authors Adriansyah Agusma Wajiansyah Arief Susanto Azhari, Andi Budi Utomo, Didi Susilo Dwi Agus Diartono Eko Nur Wahyudi Hari Purwadi Herny Februariyanti Janeta Wahyu Hidayah Karyo Budi Utomo Rihartanto Rihartanto Rihartanto, Rihartanto Sugiyamto Sugiyamto, Sugiyamto Syelviana Meisyaroh Tiara Elmanda Utomo, Didi Susilo Budi