This project aims to control a HD44780 LCD display over the CAN bus. This is a common scenario in every modern automobile. For instance the tachometer or speedometer. Looking at the latest developments in car industries as well as security researches it seems worth for getting a better understanding about the message-based protocol. I designed a test circuit which should receive data from a CAN bus and transfer them to the display.
Other basic devices might be connected to the same bus: