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All Journal Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Lamahu: Jurnal Pengabdian Masyarakat Terintegrasi Journal of Innovative and Creativity
Achmad Setiawan
Program Studi Teknik Elektro, Fakultas Teknik Dan Informatika Universitas Gajayana Malang
Computer Science & IT Earth & Planetary Sciences Education Engineering Environmental Science Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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Gaussian Distributed Noise Generator Design Using MCU-STM32 M. Nanak Zakaria; Achmad Setiawan; Ahmad Wilda Y; Lis Diana Mustafa
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Vol 6 No 2 (2022): April 2022
Publisher : Ikatan Ahli Informatika Indonesia (IAII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (496.535 KB) | DOI: 10.29207/resti.v6i2.3684

Abstract

The random noise signal is widely used as a test signal to identify a physical or biological system. In particular, the Gaussian distributed white noise signal (Gaussian White Noise) is popularly used to simulate environmental noise in telecommunications system testing, input noise in testing ADC (Analog to Digital Converter) devices, and testing other digital systems. Random noise signal generation can be done using resistors or diodes. The weakness of the noise generator system using physical components is the statistical distribution. An alternative solution is to use a Pseudo-Random System that can be adjusted for distribution and other statistical parameters. In this study, the implementation of the Gaussian distributed pseudo noise generation algorithm based on the Enhanced Box-Muller method is described. Prototype of noise generation system using a minimum system board based on Cortex Microcontroller or MCU-STM32F4. The test results found that the Enhanced Box-Muller (E Box-Muller) method can be applied to the MCU-STM32F4 efficiently, producing signal noise with Gaussian distribution. The resulting noise signal has an amplitude of ±1Volt, is Gaussian distributed, and has a relatively broad frequency spectrum. The noise signal can be used as a jamming device in a particular frequency band using an Analog modulator.
Rancang Bangun Web-Desa Sebagai Sarana Transparansi Keuangan Dan Kegiatan Di Desa Seloliman Kecamatan Trawas Mojokerto Achmad Setiawan; M Nur Sulaiman; Burhan Fahzri
Lamahu: Jurnal Pengabdian Masyarakat Terintegrasi Vol 2, No 1: February 2023
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/ljpmt.v2i1.18509

Abstract

The Regulation of the Minister of Villages, Disadvantaged Regions and Transmigration No. 11 of 2019 as a follow-up to Law number 6 of 2014 stated that there is a priority for village funds to develop a Village Information System (SID) which can be used as a means of promoting village potential, transparency of village finances and information on the dynamics of village community activities. The main problems faced by Seloliman Village, Trawas District, Mojokerto Regency regarding this SID are the absence of skilled personnel in the IT field and the incomplete understanding of village officials regarding the use of the SID. This service aims to help the Seloliman village government build a SID, in this case, a village website that is relatively simple, easy to maintain, intuitive, and most importantly can be handled independently by the village. This service activity is divided into several stages: initial investigation, problem determination, solution search, activity implementation and final evaluation. The results of the dedication show that the designed village website meets the expectations of the Seloliman village community, and is quite informative, intuitive, and easy to update. The Seloliman village administration hopes that the village website can be further developed to become an online village correspondence service facility.
Sistem Monitoring Kapasitas dan Laju Tetesan Cairan Infus Berbasis Nirkabel Kartika Mulya Wati Ningsih; Achmad Setiawan; Kusno Suryadi
Journal of Innovative and Creativity Vol. 5 No. 3 (2025)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v5i3.3789

Abstract

This research aims to design and develop a wireless-based monitoring system for the capacity and drip rate of infusion fluids to improve the quality of patient care and the efficiency of medical personnel. This system is designed to be able to provide accurate and real-time information regarding infusion status via wireless technology. The hardware uses a NodeMCU ESP8266 as the main microcontroller combined with a YZC-133 type load cell sensor with a capacity of 1 kg and an HX711 module to measure the weight of the infusion fluid, and an optocoupler sensor to detect fluid drops. Data is displayed locally on a 16x2 LCD and remotely via a web server. The software system uses MongoDB as a NoSQL database that receives sensor data via HTTP protocol to an Express.js-based web server, with a PHP-based web interface. The results show that the system is able to perform well. The load cell sensor provides stable readings and is close to the actual value after calibration, while the optocoupler sensor detects liquid drops with an accuracy of approximately 95% compared to manual counting. Data is displayed in real-time on the LCD, serial monitor, and web server, and supports multi-device monitoring. The visual warning feature in the form of a red color change on the Device ID works effectively when the infusion capacity is less than 20%.
Co-Authors Ahmad Wilda Y Burhan Fahzri Kartika Mulya Wati Ningsih Kusno Suryadi Lis Diana Mustafa M Nur Sulaiman M. Nanak Zakaria