Smart Gardening

The Smart Gardening System is a small automatic setup that helps take care of a plant by checking the moisture in the soil and giving water only when it is needed. It uses a few basic electronic parts and simple automation so that the plant stays healthy without requiring constant attention.

The system works with an ESP32 board connected to a soil moisture sensor, a small water pump, an OLED screen, an MP3 module with a speaker, and two plastic boxes—one used for planting and the other for storing water.

The soil moisture sensor keeps reading how wet or dry the soil is. When the soil becomes dry, the ESP32 switches on the water pump, which pulls water from the reservoir and sends it to the plant. As soon as the soil becomes moist enough, the ESP32 turns the pump off again. This avoids both underwatering and overwatering.

To make the system more interesting, the OLED display shows simple emotions: a 😊 smiley when the plant has enough water and a 😢 sad face when watering is needed. The speaker can also play a short sound when the plant is dry, making the project more engaging.In this project, the two plastic boxes are arranged in a way that allows extra water to flow back into the main reservoir. The plant is placed in the upper box, and the water tank is kept in the lower box. A small filter or mesh is placed at the bottom of the plant box. This filter makes sure that soil does not fall into the water tank, but extra water can still pass through.

When the pump supplies water to the plant, the soil absorbs what it needs. Any remaining water slowly drips down through the filter and collects in the lower box. This helps in recycling unused water, keeping the system clean and reducing wastage.

This arrangement keeps the plant healthy, prevents mess, and makes the Smart Gardening System more efficient and eco-friendly.