Monitor Tidal Salinity Intrusion with Arduino GPS Logger Kit
Arduino TDS Salinity Tracker: Map Estuary Salinity Intrusion Over Tidal Cycles
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Imagine driving a boat along an estuary's edge as the tide rises, watching real-time salinity readings shift from near-fresh to fully marine in minutes. This kit lets you turn that scenario into reproducible science. Using an Arduino Uno, a TDS conductivity sensor, and a GPS module, you'll build a logger that captures salinity intrusion dynamics across an entire tidal cycle - data critical for climate-resilience studies in coastal zones like the Sundarbans or Kerala's backwaters.
What You'll Build
You'll assemble a field-ready waterproof instrument that can be strapped to a boat, kayak, or even a drone of your design. The system reads electrical conductivity (�S/cm) from the TDS meter, stamps each reading with precise time from the DS3231 RTC and latitude/longitude from the NEO-6M GPS, then stores everything on a MicroSD card. A 0.96-inch OLED gives live instant feedback, so you can coordinate sampling with visible tide fronts. The result is a CSV dataset ready for contour plots and tidal intrusion mapping.
What You'll Learn
- Calibrate a TDS conductivity sensor for salinity measurements across the 0-50 ppt range typical of estuaries
- Interface a NEO-6M GPS and DS3231 RTC with an Arduino Uno to timestamp every data point precisely
- Log structured data (time, GPS fix, temperature-compensated EC) to a MicroSD card using standard FAT32 libraries
- Solder components onto prototyping boards, apply decoupling capacitors for noise-free GPS and analog readings, and seal everything in a weatherproof enclosure that survives vehicle-mounted use
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| TDS EC Meter | 1 |
| NEO-6M GPS | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 1 |
| 4.7k? Resistors | 5 |
| 100nF Caps | 10 |
| Waterproof Enclosure | 1 |
| PCB Prototype Board | 2 |
| 9V Battery Snap | 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
B.Tech ECE and EEE students working on mini-projects or Smart India Hackathon challenges involving environmental IoT. M.Tech environmental engineering researchers mapping salinity ingress in the Godavari or Hooghly estuaries. ATL tinkering mentors guiding advanced students through real-time sensor fusion. Anyone from IIT, NIT, VIT, BITS, or state universities who needs a turn-key field instrument without the headache of multi-vendor sourcing.
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 on the box to start a chat with the AI companion that knows every component and code snippet. If you prefer human help, send a WhatsApp message to our support line - we usually reply within a working day.
Can I use this kit for freshwater river monitoring instead of estuaries?
Absolutely. The TDS sensor covers a wide range from 0 to over 1000 �S/cm. Just recalibrate with a known-concentration sodium chloride solution or commercial conductivity standard, and the logger works equally well in rivers, lakes, or even groundwater sampling.
Does the kit include everything to mount on a moving boat or vehicle?
Yes. The waterproof enclosure has mounting flanges, and the included prototyping boards let you securely wire everything. You'll need a standard 9V battery (not included due to shipping restrictions), but the snap connector is supplied.
How do I extract and visualize the GPS-tagged salinity data?
The MicroSD card stores a CSV file with columns for UTC time, latitude, longitude, and conductivity. You can drag it into Google Earth Pro for a colour-mapped track, or import it into Python/Matlab for tidal cycle analysis. The AI companion includes a sample script to get you started.
Vehicle - TDS conductivity sensor in estuary water measures salinity intrusion over tidal cycle. Logs to SD with GPS.
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.
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