CAN Bus Vehicle Data Logger Kit with Arduino Uno + LED
CAN Bus Vehicle Data Logger Kit with Arduino Uno & OLED — Log Real-Time OBD-II Data to SD
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Turn any OBD-II compliant vehicle into a real-time, standalone data logger. This kit lets you pull live engine parameters—speed, RPM, coolant temperature, and diagnostic trouble codes—straight from the CAN bus, display them on the OLED, and timestamp every reading to microSD for offline analysis. Whether you're building a telematics prototype for Smart India Hackathon or a fleet monitoring proof‑of‑concept, you’ll have a portable tool that works independently of a laptop, powered from the car’s 12V socket.
What You'll Build
A self-contained vehicle data logger that reads OBD‑II PIDs through the MCP2515 CAN controller, shows speed, RPM, coolant temp, and fault codes on the 0.96‑inch OLED, and logs everything to a microSD card with RTC timestamps. The resulting CSV file can be opened in Excel, MATLAB, or Python for deep analysis of driving patterns, engine health, or fault trends—exactly what automotive capstone projects and hackathon judges look for.
What You'll Learn
- CAN bus communication and frame decoding with the MCP2515 over SPI
- OBD‑II diagnostic protocol — requesting PIDs and parsing multi‑frame responses for real‑time engine data
- Timestamped data logging to microSD using the DS3231 RTC, ensuring accurate records even after power loss
- Integrating an OLED display to build a live dashboard with custom gauge‑style readouts
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| MCP2515 CAN Module | 1 |
| OBD-II ELM327 Adapter | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 1 |
| 10kΩ Resistors | 5 |
| 100nF Capacitors | 10 |
| PCB Prototype Board | 2 |
| Male‑Male Jumper Wires | 25 |
| 12V Adapter | 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
Final‑year B.Tech ECE/EEE students assembling an automotive IoT capstone, Smart India Hackathon teams racing to build fleet telematics solutions, and competitive clubs from IITs, NITs, VIT, or BITS Pilani tackling connected vehicle prototypes. If you’ve ever needed a reliable OBD‑II logger without the price
MCP2515 CAN controller reads OBD-II PIDs and logs speed, RPM, coolant temp and fault codes to SD.
What's in this kit
- Arduino Uno R3
- MCP2515 CAN Module
- OBD-II ELM327 Adapter
- DS3231 RTC
- MicroSD Module
- 0.96in OLED
- 10kΩ Resistors x5
- 100nF Caps x10
- PCB Prototype Board x2
- M-M Wires x25
- 12V Adapter
- Soldering Iron
- Solder Wire
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