Good morning!
If you replaced the screen you will need to find out how the fan and temp settings are transmitted too the screen
Whether that’s on the CanBus, MOST, LIN etc
Then create your own views via an app
Example: The Jaguar XF sends all those values over the CanBus
Here is a good link to explain LIN Vs Can Bus
Both follow similar ideas but have some differences
as @N95JPL said, you really need to know the format of the message, it’s likely canbus, translated to mostbus, so you will likely have to option for either. Being a volvo, I suspect it will be similar to the jag set up
@DaHelmers How far are? I have a volvo v50 drivE, so if you got anything that can help.
I believe i can code some thing that might work for apple CarPlay (like popups if you turn the temp up)
PiMost board may be a good option for this, it will allow 48khz 16bit audio to be directly put onto the audio bus. Will be very interested to have someone from the volvo side give it a go and can compare it to the JLR side
Hey @JEyr and @DaHelmers, I am not sure if you guys are still working on this project, but I found some great info on the Infotainment Control Module (where you can see heater temp, blower speed, etc).
I suggest you have a look at my repository, it’s aimed at the P1 platform:
I’m collaborating on this together with Tigo who helped me to find the Canbus codes. It’s also using react CarPlay as a base and we built a whole interface around it that communicates with the car.