Freematics ONE+ is a powerful Arduino programmable vehicle tracker in form of a OBD dongle that plugs into a vehicle's OBD port. It integrates motion sensor (accelerometer, gyroscope) and can be extend with 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-configure to report to the main Traccar demo server. Device id is printed at the back of the device. For more information on device configuration please check Freematics Configuration.