Industrial Turbidity Monitoring Kit with Arduino - Compoden
Bacterial Broth Clarity Monitor - Arduino-Powered Antibiotic Efficacy Project
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Step inside a pharmaceutical quality control lab without leaving your classroom. This kit transforms an Arduino Uno into an industrial-grade turbidity monitor that tracks bacterial growth over time - with and without an antibiotic. Turbidity, the cloudiness of a liquid culture, is the gold-standard proxy for microbial biomass. By continuously measuring broth clarity while varying antibiotic presence, you generate the inhibition curves that underpin drug development. The DS18B20 temperature probe adds thermal control context, while the DS3231 RTC and MicroSD module log every data point with a timestamp. An 0.96-inch OLED displays real-time NTU values on your bench.
What You'll Build
A complete bioprocess data logger. Place the turbidity sensor in a bacterial broth, activate the system, and watch clarity evolve. The OLED shows current turbidity and temperature; the SD card stores a minute-by-minute record. Run one broth with antibiotic and one without, then overlay the curves to pinpoint when growth inhibition begins - exactly like a real fermentation scientist.
What You'll Learn
- Calibrating a turbidity sensor to nephelometric standards using distilled water and formazin solutions
- Programming timestamped data logging with a DS3231 RTC and MicroSD module
- Analyzing bacterial growth curves from real-time turbidity - identifying lag, exponential, and death phases
- Designing a live OLED dashboard that switches between NTU, temperature, and elapsed experiment time
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| Turbidity Sensor | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| DS18B20 Probe | 1 |
| 0.96in OLED | 1 |
| 4.7k? Resistors | 5 |
| 100nF Caps | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| 9V Battery Snap | 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
Built for CBSE Class 12 Biology students tackling antibiotic sensitivity investigations, B.Tech Biotechnology undergraduates needing a portable fermentor monitor, and ATL Tinkering Labs exploring industrial process automation. Ideal for Smart India Hackathon healthcare track submissions or IIT/NIT bioinstrumentation lab courses - anywhere a robust, self-built turbidostat can turn a theory lesson into publishable data.
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 my turbidity sensor readings drift during the experiment?
Fluctuations are normal in actively aerated broths. Calibrate with distilled water and a freshly prepared formazin standard before each run. The AI companion's calibration guide adjusts for baseline offset via code, and WhatsApp support can help if drift persists.
Can I use this kit with a sterile bacterial culture without contaminating the sensor?
Yes. The turbidity sensor head can be covered with a sterile, transparent sleeve (not included). Keep the DS18B20 probe submerged separately. All electronics remain outside the culture vessel, and the breadboard stays far from liquids.
How do I power the logger for a 24-hour growth curve?
The 9V battery will last roughly 6-8 hours with continuous OLED and logging. For overnight runs, connect a USB power bank to the Arduino's DC jack. The RTC retains time even during power cycles using its coin-cell backup.
What if I don't have access to bacterial cultures?
Simulate turbidity with milk dilutions or yeast suspensions to test the circuit and logging logic. The AI companion includes a ready-made broth proxy recipe so you can validate your setup before working with live microbes.
Industrial Process - Turbidity sensor measures bacterial broth clarity over time with and without antibiotic.
What's in this kit
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