Smart 6-Zone Automatic Plant Irrigation Controller (DIY Project System)

Never worry about watering your plants again — even when you’re not home.

A compact 12V smart irrigation controller designed for home plant setups, greenhouses, and DIY automation projects. It monitors soil conditions, controls watering for multiple pots independently, and manages water supply automatically.

List of downloadable files at the end of the description

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What It Does (Simple Explanation)

This system reads up to 6 soil moisture sensors, and controls 6 independent watering outputs.

Each plant gets its own sensor + its own pump output.

When a plant needs water → only that zone activates.

No overwatering. No guessing.

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Core Capabilities

• Supports 6 soil moisture sensors (6 independent plant zones)

• Controls 6 separate irrigation outputs

• Each sensor triggers its own ON/OFF control signal

• Designed to drive relay modules (0V / GND active output)

• Automatic watering per plant based on real-time moisture level

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Smart Water Tank Control

• Monitors water level in reservoir tank

• Automatically controls a pump or solenoid valve

• Keeps tank filled without manual checking

• Prevents dry-run damage to pumps

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Live System Feedback

Built-in display shows:

• Status of each sensor (active / inactive)

• Water level in tank

• System operation state

• Output activity per zone

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Power & Compatibility

• Operating voltage: 12V DC

• Compatible with standard relay modules

• Designed for easy integration into DIY electronics setups

• Low-voltage safe control logic

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Why This System Matters

Most plant watering systems are either:

• Too simple (single-zone watering)

• Or too expensive and closed systems

This project gives you:

• Full control per plant

• Expandable DIY architecture

• Industrial-style automation logic

• Real independence from manual watering

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Best For

• DIY electronics projects

• Smart home automation builders

• Greenhouse irrigation systems

• Indoor plant setups

• Engineering students & makers

• IoT prototyping projects

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Key Benefits

• Eliminates manual watering routines

• Prevents plant overwatering / underwatering

• Saves water automatically

• Scales up to multi-plant environments

• Works anywhere with 12V power

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What files will you receive?

1. Complete schematic (for development and modifications)

2. Complete PCB file designed with Altium Designer

3. Bill of Materials (BOM) for the main device
4. 3D file for circuit template (editable with SolidWorks)
5. Production guide in pcb printing