Automatic Water Irrigation System

Plants are living organisms that complete humans and the relationship between the two has always been
direct and continuous. For instance, humans have partaken in gardening and planting for thousands of years. In
conventional gardening, plants are watered manually by the gardener. This is deemed to be time-consuming, and
less efficient. Therefore, this project introduces an Arduino-based automatic water irrigation system for indoor
plants, utilizing a minimal yet effective set of components with the sole purpose of producing an efficient and
consistent watering schedule for two identical indoor plants. The well-being of the plants was also observed for one
week. The Arduino UNO software used in this project categories the sensor data into three moisture levels, displayed
on the LCD as “No moisture, very dry soil,” “Little moisture, soil is damp,” and “High moisture, soil is wet.” The
water pump operates accordingly, turning on when the soil is dry and off when appropriately moist. Based on this
categorization, if the moisture of the soil is 350 units of soil moisture sensor or below, the plant is considered moist,
if the moisture is 950 units and above, it is considered dry. Arduino-based automatic water irrigation system may
offer a sustainable and efficient solution for water management resources for modern gardening, landscaping, and
agriculture.