Should it be possible to read values from automotive sender units with an Arduino

arduinosensor

There are after-market sensors you can get for cars, for example, reading the oil temperature. You basically screw a sensor in and it has a little sender that goes to an electronic gauge.

Would it be possible to instead run these cables to an Arduino and infer the same information? I imagine so, but how would it be done? A lot of experimenting or would it be relatively straightforward?

I want to have a custom interface for this information combined with a Raspberry Pi and the auxiliary video input to a car stereo's display.

Best Answer

You could definitely run the sensors to an Arduino or directly to RPi, but you will need to know the exact specs of the sensors (datasheets).

You might be better off using your cars ODB-II interface. Here's an article on hooking it up to RPi using an ODB-USB interface: Raspberry Pi reading car diagnostics