Sistem Pemantauan Pengisian Baterai Lead Acid 48 v Pada Electric Wheelbarrow

Aziz Arthanto, Umar Abdul (2026) Sistem Pemantauan Pengisian Baterai Lead Acid 48 v Pada Electric Wheelbarrow. Undergraduate thesis, Politeknik Negeri Jember.

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Abstract

This study aims to design an offline monitoring system for the 48V Lead-Acid battery charging process of an electric wheelbarrow, providing real-time visualization of charging current, voltage, and power (Watts) without an internet connection. The system utilizes a multi-microcontroller architecture, combining an ESP32 NodeMCU (Master Node)—which reads data from a PZEM-017 DC sensor via an RS485-to-TTL converter— with an Arduino Uno R3 (Slave Node) that displays graphs on a 2.4-inch TFT LCD screen via UART serial communication. Instrument performance testing was conducted offline over a three-hour period with 15-minute sampling intervals. The results demonstrate excellent accuracy, with an average voltage reading error of 0.09% compared to a digital multimeter and a current reading error of 8.79% compared to a standard clamp meter. The system successfully captured the initial "Bulk Charge" phase, recording a maximum power intake of 91.53 Watts. Upon reaching 100% capacity, the voltage stabilized at a float voltage of 54.53V, and the current automatically dropped to 0.03A. This offline instrument proved to be more precise than conventional IoT-based systems (which exhibit a voltage error of 0.47%) and demonstrated reliable local data transmission stability without the risk of packet loss. Keywords: Electric Wheelbarrow, Offline Monitoring, Charging Power, PZEM-017 Sensor, Bulk Charge.

Item Type: Thesis (Undergraduate)
Contributors:
ContributionContributorsNIDN/NIDK
Thesis advisorNari, Mochamad IrwanNIDN0029048604
Uncontrolled Keywords: Electric Wheelbarrow, Offline Monitoring, Charging Power, PZEM-017 Sensor, Bulk Charge.
Subjects: 140 - Rumpun Ilmu Tanaman > 150 - Ilmu Pertanian dan Perkebunan > 155 - Perkebunan
140 - Rumpun Ilmu Tanaman > 160 - Teknologi dalam Ilmu Tanaman > 162 - Teknologi Hasil Pertanian
140 - Rumpun Ilmu Tanaman > 160 - Teknologi dalam Ilmu Tanaman > 166 - Teknologi Pasca Panen
410 - Rumpun Ilmu Teknik > 430 - Ilmu Keteknikan Industri > 431 - Teknik Mesin (dan Ilmu Permesinan Lain)
410 - Rumpun Ilmu Teknik > 450 - Teknik Elektro dan Informatika > 451 - Teknik Elektro
410 - Rumpun Ilmu Teknik > 450 - Teknik Elektro dan Informatika > 452 - Teknik Tenaga Elektrik
Divisions: Jurusan Teknik > Prodi D4 Teknologi Rekayasa Mekatronika > Tugas Akhir
Depositing User: Umar Abdul Aziz Arthanto
Date Deposited: 29 Jun 2026 02:14
Last Modified: 29 Jun 2026 02:15
URI: https://sipora.polije.ac.id/id/eprint/56988

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