Interfaces for steering-wheel remote control
:) Hello and excused for my English.
I ask you an aid. On my car, Alfa Romeo 147, I have the steering wheel remote control and I want to connect these keys to the CarPC.
The controls essential interest me, increase and decrement volume, scan down and up.
To the pressure of a key I have one reference tension.
I make an example: if I press the key volume +, I have 1,92 Volts or volume - I have 1,00 Volts.
I would want to know on which road I must myself be moved in order to realize my plan.
Better still if someone proposes me an interface circuit.
However every news and council are very accept.