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All Journal Elektron Jurnal Ilmiah Manutech : Jurnal Teknologi Manufaktur
Milda Yuliza
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Rancang Bangun Timbangan Buah Digital Berbasis Mikrokontroler Dengan Koneksi Printer Thermal Muhammad Irmansyah; M Irmansyah; Milda Yuliza; Junaldi Junaldi
Manutech : Jurnal Teknologi Manufaktur Vol. 13 No. 02 (2021): Manutech: Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (782.442 KB) | DOI: 10.33504/manutech.v13i02.182

Abstract

This study aims to create a digital scale using a load cell sensor controlled by a microcontroller with a thermal printer connection. Load cell sensors, keypad, LCD, I2C Module, Thermal Printer and Arduino are used in hardware design. The Parallax Data Acquisition tool (PLX-DAQ) application is used to display and store data in excel form. The test results obtained that the load cell load 0 kg - 3 kg for every 1 kg increase in load weight, there will be a change in the output voltage of about 0.5 mV. The larger the load being measured, the greater the output voltage. The average measurement error rate is 2.07%, while the success rate for digital scales is 97.72%. Overall the digital scale works well.
Efektifitas Sensor Elektrokardiograf (EKG) AD8232 Untuk Mendeteksi Kelelahan Pada Saat Penggunaan Smartphone Teguh Wijaksana Isma; Milda Yuliza; Tuti Angraini; Roza Susanti
Elektron : Jurnal Ilmiah Volume 12 Nomor 1 Tahun 2020
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (965.467 KB) | DOI: 10.30630/eji.12.1.148

Abstract

Smartphones are electronic devices that are widely used in the current modern era. Ranging from children to adults are using smartphones. Lack of knowledge from smartphone users makes the use of smartphones improperly exceeding the body's limits. This makes a variety of negative impacts of using a smartphone. One way to overcome this problem is to use an electrocardiograph (ECG) sensor. The use ECG is to determine the fatigue of smartphone users based on heart rate rhythm. The sensor used as fatigue detection is the type AD8232. The result of this process is a secure or insecure condition for using a smartphone. When BPM is worth 60 <BPM <120, the condition of smartphone users is safe, whereas when BPM <60 or BPM> 120, the condition of smartphone users is unsafe. Based on the results that have been tested, the longer the use of a smartphone, the value of the BPM will sharply be reduced.
Desain dan Implementasi Modul Kit Laboratorium Mikrokontroler AT89S52 dengan Single PCB, Portable dan Prospektif Milda Yuliza; Fatum Rahmana Putra; Yultrisna Yultrisna; Era Madona; Adi Chandranata
Manutech : Jurnal Teknologi Manufaktur Vol. 15 No. 01 (2023): Manutech: Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/manutech.v15i01.256

Abstract

This study aims to design and implement a new design of a single PCB, portable and prospective laboratory kit module. The laboratory kits made are easy to assemble, with relatively small dimensions. and suitable for use in laboratories with limited experimental space and funds. The objectives of this research are (a) creating a microcontroller trainer by creating a series of minimum systems, inputs, outputs, Analog Digital Converter (ADC), (b) system programming using the Keil C51 IDE, (c) measuring and testing trainer performance. The research method starts from making a physical trainer, programming the microcontroller and measuring circuit performance. Pulse width modulation (PWM) of DC motors and the direction of rotation of the motor can be controlled using a potentiometer. The wave that is obtained when the motor is at full speed is in the form of a straight line with a voltage of 9.12 V, while when the motor is at half-full speed, a PWM pulse wave is obtained with a voltage of 4.35 V. The test is carried out based on student practicum work on each input circuit, and the output results are all applications tested successfully as expected.
Co-Authors Adi Chandranata Era Madona Fatum Rahmana Putra Junaldi Junaldi M Irmansyah Muhammad Irmansyah Roza Susanti Teguh Wijaksana Isma Tuti Angraini Yultrisna Yultrisna