Live Chat
LiveZilla Live Chat Software

Freematics ONE

Freematics ONE
Freematics ONE Freematics ONE Freematics ONE Freematics ONE Freematics ONE Freematics ONE Freematics ONE Freematics ONE Freematics ONE Freematics ONE Freematics ONE Freematics ONE
Brand: Freematics
Product Code: ONE
Availability: In Stock
Price: US$25.00

10 or more US$22.50
50 or more US$20.00

Available Options

Motion Sensor:

Wireless Module:


GPS Receiver:


Qty:     - OR -   Add to Wish List
Add to Compare

Freematics ONE is an Arduino compatible vehicle telematics prototyping platform. It is in form of a OBD-II dongle which plugs into a car’s OBD-II port. ATmega328 (same as Arduino UNO) works as main controller connected with various peripherals giving easy access to OBD-II, GPS, 9-DOF motion sensor data. A dedicated Arduino library makes its programming as easy as with Arduino.


  • Based on original OBD-II solution from Freematics OBD-II Adapters
  • Straightly programmable with standard Arduino IDE
  • Access to all standard OBD-II PIDs, DTC, VIN from vehicle ECU
  • Measuring G-force, motion and orientation
  • Measuring car battery voltage
  • 2x digital I/O or analog input
  • GPS positioning (by external GPS receiver)
  • Data storage on microSD card (up to 32GB)
  • Working as WIFI station or AP (with optional WIFI bee)
  • BLE transparent serial communication (with optional BLE module)
  • Low power mode @10mA


Typical Applications

  • OBD-II and/or GPS data logger
  • OBD-II data reader for mobile Apps (BLE)
  • Vehicle tracker/telemeter over GPRS
  • 9-DOF motion/orientation sensing




  • ATmega328p main controller
  • STM32 based OBD-II solution (CAN BUS, K-line, NMEA parsing)
  • MPU-9250 MEMS motion sensor
  • CC2541 BLE transparent serial module (optional)
  • Self-popping microSD slot
  • xBee socket for pluggable wireless communication modules
  • Enclosure dimensions: 60x48x20mm

Physical Interfaces

  • OBD-II male connector
  • microUSB port
  • microSD card slot
  • I/O socket (Molex)
  • xBee socket

OBD-II Compatibility

Freematics ONE plugs into the OBD port usually located under the steering column. To check if your vehicle is OBD-II certified, open your hood and find the sticker that looks like this:


Vehicles using following vehicle protocols are supported.

  • CAN 500Kbps/29bit
  • CAN 500Kbps/11bit
  • CAN 250Kbps/29bit
  • CAN 250Kbps/11bit
  • KWP2000 Fast
  • KWP2000 5Kbps


Freematics ONE supports geo-location positioning by external GPS receiver. GPS receiver is connected to Freematics ONE's I/O socket by Molex connector.

UBX-M8030 GPS Receiver with Molex connector Freematics ONE GPS Connector F-ONE_3497


xBee Socket

Freematics ONE has an xBee socket onboard which provides the possibility to extend its wireless communication capability with various xBee module. A ESP8266 WIFI bee adds WIFI connectivity (see this) or a SIM800L bee adds GSM/GPRS support. For 3G network connectivity, we recommend using Freematics ONE+.

BLE Module

Freematics ONE has an optional embedded BLE module (TI CC2541) which allows transparent serial data communication over BLE.

Low-Power Mode

Freematics enters and leaves low power mode programmatically. In low power mode with all peripherals (GPS, GSM, WIFI) powered off, the power consumption is around 10mA. This prevents car battery from going flat while the main controller is still able to run code and perform low-power tasks like motion detection by MEMS sensor.

PCB Layout

Following is the PCB layout of Freematics ONE. The schematic is here. We supply head-less (no OBD-II header) or bear PCB versions. Please contact for details.

External I/O

Two I/O pins (PC0, PC1 or A0, A1 in Arduino context) are led out to one corner of PCB. They can be used for digital I/O and analog input.



An Arduino sketch can be uploaded to Freematics ONE exactly the same way as for an Arduino UNO from standard Arduino IDE through USB port. Please refer to the Users Guide for more related information.

Pre-loaded Firmware

Datalogger sketch is pre-loaded before shipping, your Freematics ONE will work out-of-box as a vehicle data logger which performs following tasks:

  • Connecting to vehicle via OBD-II port
  • Connecting to GPS receiver (if available)
  • Creating a new file on microSD card
  • Logging OBD-II, GPS, MEMS sensor data to the file (file format)


Shipping List

  • Freematics ONE x 1
  • Micro USB cable x 1
  • Wireless module x 1 (optional, plugged-in)
  • GPS Receiver x 1 (optional)
  • Extra accessories (optional)



Powered By OpenCart
Freematics Gear Store © 2018