Pengembangan Alat Monitoring Ketinggian Air Hemat Energi Berbasis Tekanan Udara dengan IoT

Justin, Gillbert (2026) Pengembangan Alat Monitoring Ketinggian Air Hemat Energi Berbasis Tekanan Udara dengan IoT. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pemantauan ketinggian air sangat penting untuk mengelola air secara efisien dan mengatasi masalah kelangkaan air, sehingga diperlukan sistem pemantauan yang akurat. Terdapat berbagai metode untuk mengetahui ketinggian air, salah satunya dengan mengetahui besar tekanan. Penulis telah melakukan sebuah prototype alat ukur ketinggian air berbasis tekanan atmosfer yang terintegrasi dengan IoT dan mode hemat energi. Keseluruhan sistem dilakukan secara wireless menggunakan sensor BMP280 dan mikrokontroler ESP32 yang tertanam di dalam sebuah pelampung yang didesain dapat mengukur tekanan saat mengapung di air tanpa merusak komponen. Tegangan baterai yang digunakan diketahui melalui pembacaan nilai ADC dengan rangkaian pembagi tegangan. Modul WiFi pada ESP32 dimanfaatkan untuk mengirimkan data ke cloud menggunakan Google Firebase sehingga monitoring ketinggian air berbasis tekanan secara wireless dapat dilakukan dari jarak jauh melalui web app. Data yang diterima RTDB Google Firebase disimpan dalam file JSON untuk diolah. Selain itu, terdapat metode lain yang digunakan yaitu dengan ESP-NOW 2-way communication. ESP-NOW bekerja secara peer-to-peer dan tidak memerlukan internet. Penelitian ini menghasilkan pelampung yang dapat mengukur ketinggian air dari permukaan melalui pendekatan tekanan atmosfer dan perhitungan lebih lanjut beserta estimasi tegangan baterai. Pelampung dapat mengapung dengan baik dan mengukur ketinggian air dengan sensor BMP280 di dalamnya.
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Monitoring water level is very important for managing water efficiently and addressing water scarcity problems; therefore, an accurate monitoring system is required. There are various methods to determine water level, one of which is based on measuring pressure. The authors have built a prototype of a water level measurement device based on atmospheric pressure, integrated with IoT and an energy-saving mode. The entire system operates wirelessly using a BMP280 sensor and an ESP32 microcontroller embedded inside a floating buoy that is designed to measure pressure while floating on water without damaging the components. The battery voltage is determined through ADC readings using a voltage divider circuit. The WiFi module on the ESP32 is utilized to transmit data to the cloud using Google Firebase, enabling wireless monitoring of pressure-based water levels remotely through a web application. The data received by Google Firebase RTDB are stored in JSON files for further processing. In addition, another method is employed, namely two-way ESP-NOW communication. ESP-NOW operates wirelessly and does not require an internet connection. This research results in a buoy that can measure water level from the surface using an atmospheric pressure approach and further calculations, along with battery voltage estimation. The buoy can float properly and measure water level using the BMP280 sensor embedded within it

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Water level, Atmospheric pressure, BMP280, IoT, ESP32,Ketinggian air, Tekanan atmosfer, IoT, ESP32, BMP280
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7871.674 Detectors. Sensors
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User:	Gillbert Justin
Date Deposited:	28 Jan 2026 07:29
Last Modified:	28 Jan 2026 07:29
URI:	http://repository.its.ac.id/id/eprint/130782

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