I've been trying to find a way to make a HUD for my car. I have an OBD-II adapter, and I can get the little LCD I got to display the speed/rpms and such, but I run into a problem when trying to project the display onto the windshield. The screen isn't bright enough to show up in the windshield.
I had a few solutions, but I wanted to see if anyone had any experience with this and could help me.
My first Idea was to get a reflective windshield sticker in order to just reflect the screen, but I'm not sure if this would even do anything.
The other idea I had was to ditch the screen altogether, get a small projector, and project the information using that. Does Arduino have any way to use a projector? Would that even be possible?
If anyone has any questions, here is the OBD-II adapter I'm using
and here is the LCD I'm using.
Thank you for any help in advance.