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All Journal Jurnal Teknik Informatika dan Teknologi Informasi
Dicky A. F.
Universitas Pembangunan Panca Budi
Computer Science & IT

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Sistem Monitoring Energi PV Berbasis IoT Menggunakan Edge Computing pada ESP32-S3 Dicky A. F.; Beni Satria; Ahmad Dani
Jurnal Teknik Informatika dan Teknologi Informasi Vol. 6 No. 1 (2026): Jurnal Teknik Informatika dan Teknologi Informasi
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jutiti.v6i1.7900

Abstract

Small-scale photovoltaic (PV) installations generally run without adequate performance monitoring, so a drop in output is noticed only after it has persisted for some time. Most Internet of Things (IoT) monitoring systems forward every sensor sample to a server untouched, and this pattern loads the network while raising the module current draw. This work moves part of the computation onto the device itself (edge computing) using an ESP32-S3 microcontroller. Panel current and voltage are read through an INA226 module, temperature through a BME280, and irradiance through a calibrated LDR. The ESP32-S3 smooths the samples with a moving average and screens out outliers before publishing the result to an MQTT broker for display on a web dashboard. Testing ran for 14 days on a single 100 Wp module at a 5-second sampling interval, with the scheme without edge processing serving as the baseline. Transmitted data fell from 184.6 KB/hour to 46.3 KB/hour, mean latency from 312 ms to 87 ms, and module current draw from 142 mA to 128 mA. Power measurement accuracy rose from 96.2% to 97.8%, because local filtering suppresses sensor reading noise. The architecture is suitable for PV installations at sites where bandwidth and power supply are limited.
Co-Authors Ahmad Dani Beni Satria