RANCANG BANGUN DAN IMPLEMENTASI SISTEM MONITORING DAN PENGAIRAN OTOMATIS BERBASIS MODUL ESP32-WROOM-32U PADA JARINGAN SUMUR BOR PRODUKSI BERPROTOKOL MQTT PADA PERTANIAN PADI DI DESA MARGOMULYO KABUPATEN TUBANNIM.: 19106020048Ichwanul KiromauthorThe El Niño phenomenon is a sea surface temperature anomaly in the Equatorial Pacific Ocean that triggers a drastic reduction in rainfall across Indonesia. El Niño causes the dry season to become significantly longer and drier than usual. This research is motivated by the lack of water availability and irrigation management in rainfed agriculture in the Tuban region, East Java. The objective of this study is to design, construct, and test an automatic monitoring and irrigation system based on the ESP32-WROOM-32U module within a production borehole network using the MQTT protocol for rice farming in Margomulyo Village.This research was conducted through three stages: system design, construction, and testing. The design stage utilized Fritzing to create the circuit schematic. The construction stage began with preparing tools and materials, assembling hardware, and developing software. The system testing stage included evaluations to determine the functional suitability and precision values of the system. The results obtained from this automatic monitoring and irrigation system demonstrated a 100% functional suitability rate and a precision value of 99.22%. Based on these results, it can be concluded that the developed automatic monitoring and irrigation system meets the measurement tool standards in Indonesia.530 Fisika2026-08-18UIN SUNAN KALIJAGA YOGYAKARTA;FAKULTAS SAINS DAN TEKNOLOGIThesis