So currently I'm researching things on carputers to plan and be prepared for a new system. While researching i found a couple things that sparked my interest concerning gmlan. Long story short, i was wondering if it would be possible to read the gmlan serial data going to the radio for chimes and warnings and run that through the carpc to play on a seperate speaker (probably the center channel). I was thinking maybe theres a way to read the data and have those commands trigger the carpc to play an appropriate signal through the center channel. Another possiblity is control the hvac with the carpc's screen with probably a manual override in case the computer ***** out on me. This idea came from a thread i read on people doing this for the g8 (i think) and they had an interest in doing it for the Camaro. They talked about using a fusion brain to control the signals to the hvac (but i'm thinking it might also be possible with an arduino or similar). Anyway, i was wondering if anyone might have some information/input on these ideas and if it were possible before i really look into such a project. If so, how practical do you think it would be? Any input is appreciated, so what do you guys think?

 

HVAC could be controlled via the use of a voltage controller, like a phidget board. HVAC is not controlled by GMLAN last I checked.

As for capturing the signals for chimes in general, probably wouldn't be so hard. Need a unit that can read all GMLAN/CAN data in realtime, figure out which is the chime trigger command, and feed that to your pc and configure a sound to play when the command is received.

going a bit further than i have. personally i ditched the chimes/turn signal clicks, and I LOVVVVVVVE IT. Just the way a DRIVERS car should be.

 

yea i thought the hvac isn't through gmlan but i wanted to include that with my questions. So the hvac just communicates using different voltage levels, or how does it output the information? by a quick look inside i saw that the input is just different contacts on the board into the processor but how does it communicate these inputs to the actual hvac system.

and about the chimes. i don't mind the silence but sometimes i need those warnings/sounds. like i often find myself driving down the highway with the blinkers on the whole time. Also i have the habit of turning on the parking lights before turning on my car to keep my hids from turning on then off during ignition then on again. I do that during the day and it caused my battery to die while in class, so with the chimes that would've easily been prevented. So i figured i'd just make life easier for me and find a way to keep the chimes, and integrating it with the carpc is just one of my options.