Raspberry Pi Pico Aquarium Water Quality Monitor Kit - 5 Sensors, Data Logging
Raspberry Pi Pico 5-in-1 Aquarium Water Quality Monitor & Data Logger Kit
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Build a compact, five-parameter aquarium water monitor on a 60x60mm custom PCB. The Raspberry Pi Pico reads pH, electrical conductivity (EC), dissolved oxygen (DO), temperature, and turbidity sensors, then logs a complete water quality profile to a microSD card with precise timestamps from a DS3231 real-time clock. An OLED display provides instant readings, while the waterproof enclosure lets you deploy it in a wet environment. By the end, you will have a field-ready device for long-term water quality tracking, ideal for aquaculture trials, research projects, or maintaining a healthy planted tank.
What You'll Build
You'll build a complete, battery-powered, waterproof water quality datalogger. The system combines five analog and digital sensors on a soldered prototype PCB, all controlled by a Raspberry Pi Pico programmed in MicroPython. The DS3231 RTC timestamps every reading, and data is written to a microSD card. The 0.96-inch OLED scrolls through each parameter in real time. The kit includes a waterproof enclosure with cable glands, a rechargeable 2000mAh LiPo battery, and a TP4056 charging module, so you can seal it up and submerge the sensors while keeping the electronics dry.
What You'll Learn
- Calibrating and reading analog water quality sensors (pH, EC, DO) using ADC and voltage conversion
- Interfacing I2C devices (OLED display, RTC) and SPI (microSD) with the Raspberry Pi Pico
- Designing sensor data structures and timestamped logging routines in MicroPython
- Soldering a multi-sensor board, managing power with LiPo and charging circuit, and weatherproofing an enclosure
Kit Contents
| Component | Quantity |
|---|---|
| Raspberry Pi Pico | 1 |
| Analog pH Module | 1 |
| TDS EC Meter | 1 |
| Analog DO Module | 1 |
| DS18B20 Waterproof | 1 |
| Turbidity Sensor | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 1 |
| PCB Prototype Board | 3 |
| Waterproof Enclosure | 1 |
| 3.7V LiPo 2000mAh | 1 |
| TP4056 Module | 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
This kit is designed for serious electronics learners and water quality researchers. B.Tech ECE/EEE students working on environmental sensing projects, Smart India Hackathon participants prototyping IoT water monitoring solutions, and ATL in-charges running advanced STEM workshops will find it highly applicable. It's also suitable for aquarists who want to build their own precision logging tool rather than buy a black-box commercial meter.
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?
Each kit includes a QR code linking to an AI companion trained on this exact project's Build of Materials and firmware. If you prefer human help, our engineers are available on WhatsApp for direct troubleshooting.
Do I need to calibrate the pH, EC, and DO sensors, and does the kit include calibration solutions?
Yes, analog sensors require calibration for accurate readings. The kit does not include calibration liquids because they have a limited shelf life, but the AI companion provides detailed calibration procedures using easily available buffer powders and standard solutions.
Can this datalogger be left submerged for long-term monitoring?
The waterproof enclosure with cable glands protects the electronics from splashes and humidity. The sensor probes (pH, EC, DO) are designed for continuous immersion. For long-term deployment, ensure the enclosure's O-ring is seated properly and the battery is recharged via the exterior TP4056 port.
How is the data formatted on the microSD card, and can I open it in Excel?
Data is saved as timestamped CSV files with one row per reading cycle, including date, time, and all five parameters. You can open the files directly in Excel, Google Sheets, or any data analysis software for plotting and trend analysis.
Aquarium - Five sensors on a 60x60mm PCB: pH, EC, DO, temperature and turbidity. Pico logs water quality profile.
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.
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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