Arduino Mega Soil Fertigation System: pH, EC & Scheduled Pump Control Kit
Automated Fertigation Controller with Arduino Mega: pH, EC & Scheduled Pump Activation
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Transform your field into a data-driven growing environment. This kit equips you to build a station that continuously reads soil pH and electrical conductivity, then triggers a fertigation pump exactly during scheduled watering windows-when the measured EC indicates a nutrient demand. No more guesswork: the Arduino Mega, DS3231 RTC, and relay module work together to deliver precision dosing, while the microSD logger archives every reading for long-term crop analysis.
What You'll Build
A deployable, field-ready instrument that sits alongside your crop. It probes the soil's chemistry via a TDS EC meter and analog pH module, displays live values on a 0.96-inch OLED, and uses a 4-channel relay to power a pump when the conductivity crosses your programmed threshold within predetermined watering schedules. All data is time-stamped and recorded on a microSD card for later review.
What You'll Learn
- Interfacing multiple analog sensors-pH and EC-with Arduino Mega 2560's abundant I/O
- Implementing precise time-based automation logic using the DS3231 RTC module
- Safely controlling mains-powered pumps through relays, with flyback diodes for protection
- Logging sensor data to microSD and presenting real-time feedback via OLED
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | 1 |
| TDS EC Meter | 1 |
| Analog pH Module | 1 |
| DS3231 RTC | 1 |
| 4-ch Relay Module | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 1 |
| 1N4007 Diode | 10 |
| 10k? Resistors | 10 |
| 100nF Capacitors | 10 |
| PCB Prototype Board | 2 |
| 12V 2A Adapter | 1 |
| Soldering Iron | 1 |
| Solder Wire | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
Ideal for B.Tech ECE/EEE students building automated agriculture projects, Smart India Hackathon teams tackling precision irrigation challenges, and researchers at IIT/NIT/VIT/BITS prototyping connected farming tools. Advanced CBSE Class 12 students and ATL Tinkering Lab mentors will also find a robust platform for agriculture-tech experiments.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project - accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Scan the QR code inside the box to launch the AI build companion trained on this exact project, or message us on WhatsApp for personalized guidance from our engineers.
Can this kit be adapted for both soil and hydroponic setups?
Absolutely. The TDS EC sensor and pH probe work in soil slurry and nutrient solutions alike; simply adjust the probe placement and calibration for your medium.
How do I calibrate the pH and EC sensors for reliable field readings?
The kit includes instructions to calibrate using buffer solutions (not included) and the AI companion walks you through a two-point calibration routine. EC calibration uses a standard solution for best accuracy.
Does the OLED display show real-time readings and pump activation status?
Yes, the companion code sends live pH, EC, and schedule info to the 0.96-inch OLED, and a relay status icon confirms when the pump is triggered.
Soil Analysis - TDS EC meter + pH sensor + RTC trigger fertigation pump at precise EC target during scheduled watering.
What's in this kit
Choose your assembly option:
- Soldering Kit - 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo - 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items