Bacterial Growth Turbidity Logger Kit with Arduino Nano + Sensor
Bacterial Growth Logger: Arduino Nano Turbidity Kit for Microbiology Projects
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Measure bacterial growth kinetics with the repeatability of a research-grade spectrophotometer. This open-hardware logger suspends directly in your culture flask, probes optical density every 30 minutes, and timestamps every reading — generating data-ready CSV files for growth curve analysis. Designed for college microbiology labs, bioengineering projects, and Smart India Hackathon prototypes that demand low-cost, real-time turbidity monitoring.
What You'll Build
You’ll assemble a fully autonomous turbidity logger that sinks into a standard culture vessel. The system reads the turbidity sensor, corrects readings with a temperature-compensated DS18B20 probe, displays live optical density on a 0.96‑inch OLED, and logs every data point with sub-second accuracy from the DS3231 RTC onto a microSD card. The result is a publication-ready bacterial growth curve, exportable to any spreadsheet or Python notebook.
What You'll Learn
- Calibrating a nephelometric turbidity sensor for optical density versus McFarland standards
- Interfacing a DS3231 real-time clock, microSD module, and OLED with Arduino Nano using I2C and SPI
- Optimising power with a TP4056 charger and 3.7V LiPo cell for long-term incubation logging
- Analysing time-stamped CSV data to extract lag, log, and stationary phases of bacterial growth
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Nano | x1 |
| Turbidity Sensor | x1 |
| DS3231 RTC | x1 |
| MicroSD Module | x1 |
| DS18B20 Probe | x1 |
| 0.96in OLED | x1 |
| 4.7kΩ Resistors | x5 |
| 100nF Caps | x5 |
| PCB Prototype Board | x2 |
| 3.7V LiPo 1000mAh | x1 |
| TP4056 Module | x1 |
| Soldering Iron | x1 |
| Solder Wire | x1 |
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 targets college-level builders who need a dependable biology-logging platform. B.Tech ECE and EEE students can run it as a final-year biosensor project, while M.Sc. Microbiology researchers get an affordable continuous OD600 logger for growth curve experiments. Smart India Hackathon teams working on portable diagnostics or water-quality alarms will also find the hardware ready to embed, and ATL Tinkering Lab mentors can use it for advanced bio-electronics workshops.
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 to launch the AI companion; if you need a human, message us on WhatsApp — we’ll reply within hours.
How do I calibrate the turbidity sensor for bacterial cultures?
The AI companion includes a calibration wizard that correlates sensor voltage output to McFarland turbidity standards using a simple broth baseline.
Can this kit monitor algae or yeast growth as well?
Yes — any optically dense culture works. Just adjust the sampling interval and calibration curve; the companion code is configurable for different organisms.
Is the kit self-contained for overnight incubation?
Absolutely. The 1000mAh LiPo with TP4056 powers the logger for over 24 hours, and the microSD card stores weeks of 30‑minute readings.
Turbidity sensor in culture flask logs optical density every 30 minutes. Plots bacterial growth curve.
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