Cold Chain Temperature Data Logger Variant 16 Kit with Arduino Nano + LED
Cold Chain Temperature Data Logger Variant 16 Kit with Arduino Nano + LED — Log Produce Temperatures During Transport
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 a crate of fresh strawberries traveling from a Punjab farm to a Bengaluru market. With this kit, you'll build a data logger that records the temperature inside the cold chain every 5 minutes, time-stamped by a real-time clock, and saved to an SD card. By the time the truck arrives, you'll have a complete log to prove the produce was kept at safe temperatures. This intermediate project transforms an Arduino Nano into a portable, battery-powered cold chain sentinel.
What You'll Build
You'll assemble and program a two-channel temperature data logger that writes CSV files to a microSD card. The system uses two waterproof DS18B20 probes — one for inside the cold box and one for ambient air — a DS3231 RTC for accurate timestamps, and an OLED display for live readings. It's designed to run on a 9V battery for the entire transport journey, logging every 5 minutes without interruption. The result is a compact, field-ready tool you can drop into any produce crate.
What You'll Learn
- Wiring and reading multiple DS18B20 one-wire sensors on a single bus
- Using a DS3231 RTC module to timestamp sensor data precisely
- Writing sensor readings to a microSD card in CSV format for analysis
- Displaying real-time temperature values on a 0.96-inch OLED screen
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Nano | 1 |
| DS18B20 Probe | 2 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 1 |
| 4.7kΩ Resistors | 5 |
| 100nF Capacitors | 5 |
| 400-pt Breadboard | 1 |
| M-M Jumper 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
This kit is ideal for CBSE Class 11-12 students working on agriculture-related science projects, B.Tech ECE/EEE students building cold chain monitoring prototypes for Smart India Hackathon, and ATL Tinkering Lab mentors guiding learners in IoT and food safety. It also serves as a practical assignment for agri-tech training programs in IITs, NITs, and agricultural universities.
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 inside the kit to launch our AI companion, which is trained with step-by-step wiring diagrams and code walkthroughs. You can also reach us on WhatsApp for human support within minutes.
Can I add more DS18B20 sensors to the same bus?
Yes, the one-wire bus supports multiple sensors. The kit includes two probes, but you can connect up to four more by soldering them with additional 4.7kΩ pull-up resistors, all logged with their unique addresses.
How do I set the RTC time before a field trip?
The AI companion includes a simple Arduino sketch to sync the DS3231 with your computer's clock. Once set, the RTC keeps accurate time even when the main power is off, using its backup battery.
Will the SD card logging work on a 9V battery?
Absolutely. The circuit draws under 30 mA when logging, so a standard 9V alkaline battery supports over 20 hours of continuous 5-minute logging — plenty for a long-haul transport test.
DS18B20 logs produce temperature every 5 minutes to SD during transport. RTC timestamps all readings.
What's in this kit
- Arduino Nano
- DS18B20 Probe x2
- DS3231 RTC
- MicroSD Module
- 0.96in OLED
- 4.7kΩ Resistors x5
- 100nF Caps x5
- 400-pt Breadboard
- M-M Wires x20
- 9V Battery Snap
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