OBD2 module* is an electronic device that you can plug in the diagnostic socket of the car. Reads the operating parameters of a car with the ECU (Engine Control Unit) using a communication protocol compliant with OBD2. OBD2 module can communicate via Bluetooth eg using phone by connecting the with the ECU of the car. Thanks to this, Drive Mate on the phone obtains access to the operating parameters of the car.
*OBD2 module works in cars manufactured after 2001 – with gasoline engines and after 2002 – with diesel engines.