Remote access to car's CAN bus over Wi-Fi

Abstract

The aim of this project is to develop a device capable to provide real-time remote access to car's CAN bus over Wi-Fi network. In order to accomplish and prove this main goal it is proposed to design a device based on an ESP32 module, a low-cost low-power microcontroller with integrated CAN controller, Wi-Fi technology and Bluetooth. This device will be connected to an access point that provides Internet connection to send the CAN bus information to another ESP32 based device using UDP protocol. Then, the second device will convert the received data to CAN messages and replicate them in the CAN network. This document starts introducing the main technologies used in the project, continues showing the hardware designed, software implementation and the functional validation. At the end, it presents the results and conclusions and proposes a new development to continue this project.