🌱 Smart Vertical Hydroponics System

📌 Overview

This project demonstrates how to grow plants without soil using a vertical hydroponics system. It also introduces students to:

1. Sustainable agriculture
2. Water-efficient farming
3. Basic engineering and design thinking
4. Optional: automation using microcontrollers

🎯 Learning Objectives

By the end of this project, students will:

1. Understand hydroponics (soil-less farming)
2. Build a vertical growing structure
3. Learn safe usage of tools
4. Understand water flow systems
5. (Optional) Learn basics of IoT & automation

Materials Required

Structure

1. PVC pipes (75mm diameter)
2. plastic pots(110/140 mm opening diameter)
3. Plastic cups/net pots(3d printed)
4. Stand/frame (wood/metal)
5. strainer (3d printed)

Hydroponics System

1. Submersible water pump
2. Plastic tubing(leveling pipe- available in hardware store)
3. Power source (usb charging cable)

Tools

1. Drill machine
2. Hot air gun
3. Hex saw cutter
4. Cutter / blade
5. glue gun (ensure glue sticks)
6. Measuring tape
7. Marker
8. 2 inch pvc pipe
9. sand paper (80-120 grit)

Optional Electronics (Advanced)

1. ESP32
2. Relay module
3. Jumper wires
4. Sensors (dht11, soil moisture, LDR )
5. neopixel led
6. DATA cable
7. micro usb b type power cable

Explanation for Students

Hydroponics is growing plants using nutrient-rich water instead of soil.

Key Concept to Explain

1. Plants need:
2. Water 💧
3. Nutrients 🧪
4. Light ☀️
5. Soil is just a medium — not necessary!

design pods of length 50mm width 50mm and hight 50mm

What to Do

1. Measure and mark equal spacing on pipe (50cm standard )
2. Mark positions for plant 5cm lines
3. use hex saw to cut
4. use sand paper to clean the bur

Mentor Instructions

1. Demonstrate cutting
2. Let students mark positions

⚠️ Safety:

1. use table clamp to hold pipe firmly
2. follow safety rules(gloves, glasses)

What to Do

1. heat 5 cm cuts with hot air gun
2. insert 2inch pipe to make proper hole
3. let it cool down
4. check pods fitting

⚠️ Safety:

1. use table clamp to hold pipe firmly
2. follow safety rules(gloves, glasses)

What to Do

1. seal and water proof pots with hot glue
2. slide laser cut ring on pvc pipe
3. drill a small hole for wire to come out in pvc pipe
4. Fix pipe in pot

Mentor Notes

1. Check stability
2. Avoid tilting

What to Do

1. Place pump in pot
2. Connect pump to usb power supply
3. insulate wires with heat shrink and water proof by putting hot glue on joint
4. connect tube to water pump (ensure other end of tube reaches top)
5. add strainer on top and pass tube though it
6. Allow water to flow downward

Teaching Explanation

1. Gravity helps distribute water
2. Roots absorb nutrients as water flows

What to Do

1. Place seedlings in cups
2. Ensure roots reach water

Good Plants for Students

1. Mint 🌿
2. Spinach 🥬
3. Lettuce 🥗

What to Check

1. Water flow is smooth
2. No leakage
3. Pump working properly

Mentor Tip

Ask students:

“What happens if water stops?”

Encourage critical thinking.

What to Add

1. Relay to control pump
2. Timer-based ON/OFF system
3. neopixel led for ambient lighting
4. LDR Based light control
5. temperature and humidity monitoring using DHT11

Learning Outcome

Students learn:

1. Basic coding
2. Automation
3. Smart farming