Freematics ONE+ is a powerful Arduino programmable vehicle tracker in the form of an OBD dongle that plugs into a vehicle's OBD port. It integrates a motion sensor (accelerometer, gyroscope) and can be extended with a GPS receiver and external sensors. Freematics firmware is open source and can be customized to your needs.
For most common use cases, we recommend Traccar Edition devices, which come pre-configured to report to the main Traccar demo server. The device id is printed on the back of the device. For more information on device configuration, please check Freematics Configuration.