The document proposes an automated plant irrigation system called Smart Plant that monitors environmental parameters like humidity, light, and soil pH using sensors. It uses this sensor data to determine when plants need water and automatically irrigates them through a connected water tap. A mobile app and integration with Google Assistant allows users to monitor the system and plant status remotely. The system is built using an STM32 WiFi board connected to various sensors and a step motor water tap, drawing irrigation rules from a database of plant needs.