Project Naiad: An Automated Smart Irrigation Revolution for Urban Home Gardens Using Arduino UNO R4 Wi-Fi
Authors:-Bernard Felipe B. Capalit, Client Teejay N. Jimenez, Anna Fatima P. Padao, Cairoden L. Usman Jr.
Abstract-This study aimed to develop a prototype of an automated smart plant watering system for urban home gardening, focusing on the reliability and functionality of its monitoring, notification, and water dispensing features. The system incorporated components such as the Arduino Uno R4 WiFi, DHT22 sensor, soil moisture and water level sensors, a raindrop sensor, and a submersible pump to address urban gardening challenges. The study evaluated the accuracy of the system’s sensors, the real- time data display, and SMS notifications, as well as the precision of water dispensing based on soil moisture levels. Results indicated high reliability, with most sensors achieving accuracy rates between 90% and 100%. The soil moisture sensor provided consistent readings, while the raindrop and water level sensors performed with near- perfect accuracy, enabling precise environmental monitoring. Notification features, including the LCD display and SMS alerts, were effective, with minimal delays in SMS reception. The water dispensing system demonstrated precision, adjusting water volume according to soil moisture levels, achieving an average water conservation effectiveness of 85% or higher. Additionally, a weak negative correlation between soil moisture and water dispensed highlighted the system’s responsiveness to environmental conditions. In conclusion, the prototype proved effective in monitoring and responding to soil conditions while minimizing water usage, making it a viable solution for urban home gardening. Future work could explore IoT-based enhancements for improved real-time monitoring, remote control, and data logging to further optimize system functionality.