The Freematics Vehicle Data Logger is an Arduino-compatible, OBD-II compliant device designed for programmable data logging. It boasts features such as an OBD-II data reader, high-resolution GPS, a 9-axis motion sensor, microSD storage, and a BLE wireless module. All these components are readily accessible and controllable using Arduino libraries, making it a powerful tool for vehicle data acquisition and analysis. This device builds upon the success of a 2014 Kickstarter campaign, further refining its capabilities and functionality.
This device is perfect for DIY enthusiasts and professionals who want a deep dive into vehicle data. It allows recording and analyzing various parameters, making it invaluable for performance tuning, diagnostics, and fleet management.
Key Features of the Arduino OBD2 Logger
The Freematics Vehicle Data Logger offers a compelling array of features:
- Arduino Compatibility: Leveraging the extensive Arduino ecosystem, this logger provides access to a wealth of libraries for seamless integration and programming.
- Direct OBD-II Connection: Plugs directly into the OBD-II port for power and data access, simplifying installation and usage.
- High-Speed Data Acquisition: Capable of reading up to 100 OBD-II PIDs (Parameter IDs) per second, including vital information like VIN (Vehicle Identification Number) and DTC (Diagnostic Trouble Codes).
- Onboard Data Storage: Equipped with a microSD card slot supporting up to 32GB, ensuring ample storage for extended logging sessions.
- Integrated Sensors: Includes a voltmeter for battery monitoring, and a MPU-9150 9-axis motion sensor (accelerometer, gyroscope, magnetometer, and temperature) for comprehensive data capture.
- Wireless Communication: Features BLE (Bluetooth Low Energy) and Bluetooth 2.1 for wireless connectivity with iOS and Android devices, facilitating real-time data monitoring and analysis.
- Precise Location Tracking: Integrates a 5Hz GPS module and a ceramic antenna for accurate location tracking.
arduino inside
Programming the Arduino OBD2 Logger
Powered by an ATMega328P microcontroller, identical to the Arduino UNO, the Freematics Vehicle Data Logger can be programmed using the familiar Arduino IDE. This allows users to customize the data logging functionality and interact with the onboard peripherals using readily available Arduino libraries. Code uploading is done via ICSP (In-Circuit Serial Programming) using a USBasp programmer or an Arduino as ISP.
Comparing the Arduino OBD2 Logger
How does this device stack up against other OBD-II solutions?
| Feature | Arduino Obd2 Logger | Bluetooth OBD-II Reader | WIFI OBD-II Reader |
|---|---|---|---|
| Programmable Microcontroller | Yes | No | No |
| Built-in Accelerometer/Gyro | Yes | No | No |
| Internal Mass Storage | Yes | No | No |
| Firmware Updating | Yes | No | No |
| Driving External Devices | Yes | No | No |
| Smartphone/PC Required | No | Yes | Yes |
| iOS Device Connectivity | Yes | No | Yes |
| Power Consumption | Low | Low | High |
Applications of the Arduino OBD2 Logger
This device excels in various applications:
- Vehicle Data Logging: Combining OBD-II data with GPS and sensor data, it creates a comprehensive record of vehicle performance and driving behavior.
- Wireless Data Bridge: Enables seamless data transfer between the vehicle and software applications on smartphones or computers, facilitating real-time monitoring and analysis. Data caching ensures no data loss even with intermittent connectivity.
Product Gallery
The Freematics Vehicle Data Logger is a powerful and versatile tool for anyone looking to delve into the world of vehicle data acquisition and analysis. Its Arduino compatibility, comprehensive feature set, and wireless capabilities make it a standout choice for both hobbyists and professionals.
