Smart Garden Watering Pro Kit with Arduino Uno – Automatically Water Your Plants When the Soil is Dry

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

This kit turns a classic school science experiment into a real, working automatic irrigation system. Place the moisture probe in your garden pot, and the Arduino Uno reads the soil moisture. When it drops below a preset threshold, the relay switches on the mini submersible pump for exactly 5 seconds—delivering water without flooding, then waiting for the soil to dry again before repeating. The circuit uses hysteresis logic to prevent rapid on/off chatter, making the system stable and reliable for daily use.

What You'll Build

A standalone automatic plant watering device that mimics smart agriculture on a tabletop scale. You'll assemble a sensor circuit on a breadboard, calibrate the moisture threshold with two resistors and simple Arduino code, and connect the pump via a relay and protective diode. The final build sits beside any potted plant, activating the pump only when truly needed—saving water and keeping the soil at a healthy moisture level.

What

Garden — Soil moisture below threshold triggers relay pump for 5 seconds. Hysteresis prevents over-watering.

What's in this kit

• Arduino Uno R3
• Soil Moisture Sensor
• 5V Relay Module
• Mini Submersible Pump
• Silicone Tube 30cm
• 1N4007 Diode x3
• 10kΩ Resistors x5
• 400-pt Breadboard
• M-M Wires x20
• 9V Battery Snap