Si tu coche ya es algo antiguo y quieres modernizarlo un poco, puedes añadirle un panel digital táctil por muy poco, utilizando una Raspberry Pi junto a su pantalla táctil
I found this tutorial about how to use a raspberry pi to add a digital panel to old cars (canbus port needed)
That's deeply unwise. Nothing you cobble together yourself using a raspberry pi is going to be up to automotive safety standards.
Anyone who sets up one of these has nobody but themselves to blame when it misbehaves and gives them incorrect information, or no information, or starts flickering distractingly, and they get done for speeding/hit a pedestrian/fail whatever inspections the law requires in their part of the world
I think you may be overestimating how far safety standards have come in a very short amount of time.
I’ve driven cars from the 1960s up to modern day and anything before the mid 90s would be fare less accurate and reliable than I could cobble together on a RaspberryPI.
Has no one driven a car with swapped wheels making the speed optimistic or pessimistic?
What about broken/missing temp sensors? Oil pressure gauges? Battery voltage?
The only thing you really need is a speed gauge, and you can get that from the wheels, the gearbox, and GPS. Making it easily three way redundant and have the ability to have a backup via your phone or manual gauge.
This looks like a good fun project, you could make it a HUD and keep all your old gauges.
I agree. It is more a curiosity thing than a real life project. But it helps to show the potential of this SoCs and it is a good practice for a lot of things.