Analog Input

[kyr]

Hi all,

I have the Freematics OBD-II Adapter (GPS embeddable) with an analog I/O leadout cable. I was wondering in which arduino pins is these connected and how can read analog data from there.

thanx

[stanley]

It's connected to A4 and A5.

[kyr]

ok, thanks and these are as in arduino with 5Vmax, 10-bit resolution. Correct?
do we have access to Vin to gain in resolution, when sampling smaller voltages?

thanxs

[stanley]

Yes. VIN is not available.