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Ahmad Azhari
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Signal and Image Processing Letters
Published by Association For Scientific Computing Electrical and Engineering
ISSN : 27146669     EISSN : 27146677     DOI : 10.31763/simple
Core Subject : Science, Engineering,
Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering
The journal invites original, significant, and rigorous inquiry into all subjects within or across disciplines related to signal processing and image processing. It encourages debate and cross-disciplinary exchange across a broad range of approaches.
Arjuna Subject : Ilmu Komputer (semua kategori) - Pemrosesan Sinyal
Articles 2 Documents
 1 
Search results for , issue "Vol 6, No 2 (2024)" : 2 Documents clear
Internet of Things-based Temperature and Humidity Control System Bastian, Fathony Nur; Sunardi, Sunardi
Signal and Image Processing Letters Vol 6, No 2 (2024)
Publisher : Association for Scientific Computing Electrical and Engineering (ASCEE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/simple.v6i2.105

Abstract

The advancement of the industrial revolution 4.0, the use of automation systems and data processing based on the Internet of Things is a new standard that is widely applied to the production and industrial sectors. Air is an important element for daily life, therefore air must have quality so as not to have a negative impact on the body. Therefore, the solution developed in this research is to create an Internet of Things-based room temperature and humidity control system that can be monitored at any time, from anywhere and at any time. The system designed in this research, the ESP8266 microcontroller is used to control and process data from the DHT-11 sensor which is used to detect air temperature and humidity conditions. The results of data processing are then sent to blynk on the smartphone via an internet connection. The relay will turn on the fan when the temperature value is more than 29 °C and will turn off if the temperature is less than 26 °C. From the system testing carried out in the morning until the evening, the temperature error value is 4.46 and the humidity error value is 6.38%. The ability of the system to turn on the fan when the temperature value exceeds a certain limit can also run well.
Design of Automatic Attendance System Using RFID and ESP32 Based on Internet of Things (IoT) Febriana, Lutfi Afudn; Aji, Wahyu Sapto
Signal and Image Processing Letters Vol 6, No 2 (2024)
Publisher : Association for Scientific Computing Electrical and Engineering (ASCEE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/simple.v6i2.113

Abstract

The development of RFID technology in the field of education is quite interesting, including the implementation of an automated presence system that is integrated with the database that supports the processing of information about the presence of lectures. The app consists of several major components, such as an RFID Tag, an RFID Reader, and the ESP32 microcontroller. RFID Tags are used to read data and serve as student IDs. This tool system is integrated into the website according to the concept of the Internet of Things. This concept is the communication between the tool system and the website; data is automatically stored directly into the database that has been provided. The mode used by the presence system consists of two modes, namely list mode and presence mode. The functionality of the system hardware and software has been tested to ensure that the tools and components work properly and can function as required. The test results showed that the distance required to be able to read RFID Tags was 0 to 2.5 cm, the read time of an RFID Tag was an average of 2.39 seconds, and the update time of website data was 3.33 seconds. The performance of the system in testing failed to read an RFID Tag three times, with a success rate of 85.71%.

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