The opel astra h (2004-2010) has the following busses: So I ordered a MCP2515 / MCP2551 CAN-BUS interface for a raspberry pi and started to scan the bus. But the only way to skip a song is the I/R remote placed in my armrest and to see what song is playing, I need to switch the whole display to mediacenter mode.īecause I always wanted to take a closer look at the CAN-BUS in my opel astra, I decided to give the music player another update. Lets’s get deeper in the car’s electronics
#MEDIACENTER CON RASPBERRY PI SOFTWARE#
My software now listens for this data on the bus and writes the values on the display. The described values are only the ones that I already figured out.
The components connected to the bus do have some interresting informations and GM built a diagnostic protocol that lets you ask the controller for the actual values.
Sadly the “MS-CAN” (entertainment bus), which I am connected to cause of the info display, doesn’t allow communication to the ECU (also, this factprevents me from messing with the engine or other critical components). So I started to look for some more interesting values to get from the bus. With a controller connected to my Vehicles CAN-bus, I don’t want to limit the use of it to song-title and music controls.