U ovom radu opisana je izrada električnog sklopa koji će korištenjem CAN BUS protokola (eng. Controller Area Network) očitavati parametre vozila te korištenjem GPS modula i MQTT protokola, podatke slati u web aplikaciju Cayenne. Komponente koje će se koristiti u projektu su Arduino Nano, CAN moduli, GPS te DHT22 senzor.In this thesis it is described the development of an electrical circuit that will read the vehicle parameters using the CAN protocol (Controller Area Network) and send the data to the Cayenne web application using the GPS module and the MQTT protocol. The components that will be used in the project are Arduino Nano, CAN modules, GPS and DHT22 sensor