Soil Nutrient Gradient Mapping Kit with Arduino Uno & TDS EC Probe - Precision Agriculture Learning

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

From CBSE Class 11-12 agriculture investigations to Smart India Hackathon prototypes, understanding how nutrients distribute through soil layers is a critical skill. This kit gives you everything to map the concentration gradient of dissolved solids using a TDS EC probe inserted at two different depths, coupled with waterproof temperature sensors. The Arduino Uno logs readings with an RTC timestamp to microSD, while a crisp OLED displays real-time data. Build a portable field station that demonstrates precision agriculture principles - exactly what modern farming demands.

What You'll Build

You'll assemble a multi-depth soil probe that measures Total Dissolved Solids (TDS) and electrical conductivity at two distinct soil horizons. The DS18B20 sensors report temperature simultaneously, and the DS3231 real-time clock stamps each record. Data is written to a microSD card as a CSV file, ready for analysis in Excel or Python. The 0.96-inch OLED shows the deepest measurement, so you can verify readings on the spot. Walk into a field, push the probe in, and capture nutrient profiles with research-grade methodology at a student-accessible scale.

What You'll Learn

• Calibrating and reading a TDS/EC probe to measure soil nutrient concentration.
• Interfacing a DS18B20 waterproof temperature sensor using OneWire protocol.
• Logging sensor data with a real-time clock (DS3231) onto a microSD card.
• Building a multi-depth sensing array and graphing nutrient gradients across soil layers.

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is designed for CBSE Class 11-12 students pursuing agriculture or computer science projects, B.Tech ECE/EEE undergraduates working on precision farming prototypes, and participants of the Smart India Hackathon tackling agri-tech challenges. It fits seamlessly into ATL Tinkering Labs and research-oriented clubs at IIT, NIT, VIT, and BITS Pilani - anywhere that connects electronics engineering with real-world soil science.

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.