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Cool project. I've been looking to do something like this but I want it to work on a retractable projection screen. Maybe with side firing leds that drop down with the screen? Not sure.My idea that I'd like people to chime in on though is this: Take a pi with a camera attached and a small touch screen or app to set up with. Mount it anywhere that can see the screen. Send the data wired or wirelessly to a light controller. It could set itself up be looking at the lights with the camera. You just need the screen to position the viewable image, although I can see that being automated as well. The benefit would be it's easy to set up, can be easily moved, and is not dependent on the source at all. The negative would be mounting the little pi/camera box somewhere.
lol. Agreed, just thinking out loud. I've had wheels with all kinds of things on them so every car would be very different. Some cars might have the wiring for a heated wheel if it's an option too. Chrysler pacifica, BMW's, Kia sedona... BMW even offers a wheel with a display on it. I'd be curious to see how the different OEM's handle these options, wiring wise.
So you broke your OBD2 jack mount? That has nothing to do with the power. You just use the power wire, nothing to do with scanning per se.Pin 16 is a line from the battery(not switched). Just jump into it and add a fuse. It might be only rated for 4 amps though so I'd check against the draw. You can also get a OBD2 extension cable and cut into that so you would never be using both at the same time.That said, I would rather use the fuse box anyway as it usually has an extra wire/fuse plug.
The fuse box and OBD2 port are usually under the dash on the drivers side. easy 12v power.
I'd rather have a heated steering wheel than cruse control. Do those buttons have power you can tap into? Also, I'd like to see a battery powered version. Two removable batteries that you charge one while using the other one. Having had a car with a heated steering wheel I'd say you mostly want it on quickly and for around 10 minutes.
Future Stair Repair: 3D Scanning/ 3D Printing.
3d printed lightsaber chopsticks
The Asteroid Belt
DIY Glow 3D Printer
Giant Lite Brite