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Freematics Mega Kit (DISCONTINUED)

Freematics Mega Kit (DISCONTINUED)
Freematics Mega Kit (DISCONTINUED) Freematics Mega Kit (DISCONTINUED) Freematics Mega Kit (DISCONTINUED) Freematics Mega Kit (DISCONTINUED)
Product Code: KIT-3
Availability: Out Of Stock
Price: US$0.00

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This Arduino based DIY kit is ideal for putting up a customizable vehicle telematics data logging device with OBD-II/GPS/G-force data data logging, live data display and Bluetooth SPP and BLE wireless connectivity. The whole setup is powered from OBD-II port. The well developed and actively maintained Arduino sketches and libraries for this kit make it easy-to-go and easy-to-modify. The kit consists of following parts:

Parts of Advanced Telematics Kit

With this kit, you can:

  • Obtain OBD-II data and display or manipulate with the data
  • Obtain GPS (raw NMEA or parsed) data  and display or manipulate with the data
  • Obtain MEMS module (accelerometer, gyroscope, temperature sensor) data and display or manipulate with the data
  • Log all or selected data-set to microSD card
  • Transmit all or selected data-set to computer via USB
  • Transmit all or selected data-set to a mobile device wirelessly via BLE (Bluetooth Low Energy)
  • Test and observe OBD-II communication


Arduino Board

The kit comes with Arduino MEGA compatible board. Optionally, several variants are available with extra features.

  • Wemos Mega - Arduino MEGA 2560 + WiFi (ESP8266 w/ 4MB flash)
  • Bluno Mega 2560 - Arduino MEGA 2560 + Bluetooth Low Energy (CC2540)


BLE USB Dongle

With a dedicated BLE USB dongle, you can perform wireless serial communication easily with the Bluno Mega board from a computer. More interestingly, you can upload sketch to the Bluno board via BLE without a USB cable.


Telematics Shield

We developed this dedicated Arduino Mega shield for telematics applications together with DFRobot. The shield features a 3.5" 480x320 color TFT LCD, a microSD card seat, and 4 I/O sockets for connecting OBD-II adapter, GPS receiver and additional devices. More technical information about shield is available here.

kit3-lcd35-2 kit3-lcd35-1
Newly released Telematics Shield with 3.5″ LCD (R61581 controller)


OBD-II Adapter

The kit comes with Freematics OBD-II UART Adapter V2.1, providing Arduino with access to vehicle ECU through OBD-II port, as well as 9-DOF motion sensor data.



OBD-II adapter and GPS receiver are both connected to the Telematics Shield on which 4 I/O sockets are available. For I2C version of the OBD-II adapter, the 4-pin connector (marked I2C) goes into I2C socket on the Telematics Shield. For UART version, the 4-pin connector (marked Serial1) goes into Serial1 socket. The 4-pin connector (marked Serial2) from GPS receiver goes into Serial2 socket. That's it. You can't mess it up.


OBD-II UART Adapter line definition:

  • Red: VCC
  • Black: GND
  • White: Tx (to Arduino's Rx1)
  • Black: Rx (to Arduino's Tx1)

GPS connector line definition:

  • Red: VCC
  • Black (thick): GND
  • White: Tx (to Arduino's Rx2)
  • Black: Rx (to Arduino's Tx2)


BLE Wireless

The kit provides option of Bluno MEGA board for getting BLE communication. With Bluno, it is also possible to upload sketch via BLE by using optional BLE Link USB dongle.



Following libraries provided for supporting with hardware.


Arduino Sketch

MegaLoggerHD is an Arduino sketch developed for the kit working as a OBD-II, GPS and 6-axis MEMS data logger with live display. Please make sure to import all libraries in the repository before compiling the sketch. Refer to Developers Guide for some instructions.

Sketch loaded in Arduino IDE

MegaLoggerHD sketch running on the wired kit


How to view logged data?

The easiest way is using Freematics Data Charting Service, an online service which renders data log file into interactive chart and map in your web browser.

If you prefer to do everything offline, Data2KML is provided as an open-source utility for converting data log file to KML format which can be loaded by Google Earth.



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