Arduino Nano Soil Survey Payload with GPS, pH, and TDS Logging

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

Assemble a drone-mountable sensor probe that measures soil TDS/EC, pH, and stamps every reading with precise GPS coordinates and timestamps. Designed for field soil surveys, the device stores all data on a microSD card in CSV format while displaying live values on a high-contrast OLED screen. Whether you are mapping soil health for a precision farming initiative or gathering data for an agriculture hackathon, this kit transforms a raw idea into a portable, weatherproof logging instrument in a single build session.

What You'll Build

You will construct a waterproof sensor probe integrating TDS/EC and pH electrodes with an Arduino Nano, a NEO-6M GPS module, and a DS3231 real-time clock. The assembled payload fits into a rugged enclosure that can be hand-carried or attached to a drone frame. Each time a reading is taken, it records latitude, longitude, altitude, date, time, TDS, and pH simultaneously. The CSV log files on the SD card are ready for import into Excel, Google Earth, or QGIS, making it simple to generate soil fertility maps and track trends across multiple field visits.

What You'll Learn

• Interfacing analog pH and TDS sensors with Arduino Nano and calibrating them for soil science applications
• Parsing NMEA sentences from a NEO-6M GPS module to extract real-time position data
• Stamping sensor readings with precise timestamps using a DS3231 RTC
• Creating a compact, battery-powered field logger with OLED status display and microSD storage

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This intermediate-level kit suits B.Tech ECE/EEE students building IoT agriculture projects, Smart India Hackathon teams prototyping precision farming solutions, and CBSE Class 11-12 students creating environmental monitoring systems for school exhibitions. ATL Tinkering Labs and drone research groups at IITs, NITs, VIT, and BITS will also find it a ready-made platform for field data collection 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.

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.