Implementasi Sistem Penyiraman Otomatis Berbasis IoT Menggunakan Microcontroller Arduino Uno

Abstract

Plants need proper watering to support optimal growth, but manual methods are often inefficient in maintaining soil moisture. This study aims to design an IoT-based automatic watering system using Arduino Uno and YL-69 soil moisture sensor. The study was conducted at the Solok Regency Agriculture Service using research and development (R&D) methods as well as experimental and observation methods. The research stages include hardware design, system programming, sensor and actuator performance testing, and observation of system effectiveness in field conditions. This system works by detecting soil moisture in real-time and activating an automatic water pump as needed. The implementation results show that the YL-69 sensor provides accurate data, the I2C LCD displays the humidity level directly, and the pump turns on when soil moisture is low and turns off when moisture is sufficient. This system improves watering efficiency, reduces water waste, and supports more sustainable modern agriculture