OBDII, GPRS, and car control
I am currently working on a project where I am trying to tap into the OBDII for getting info on mileage the car has traveled, and I would also like to be able to control the car locks from the same connection. In the end I would like to store the data about car mileage on a flash drive or something and then send the data via GPRS modem to a home server.
This project is for a non-profit carshare, and so it has to be a kind of generalized system for any new make and model (all their cars are new, 2004 or 2005.) The 2005 VW's would be easy because of the CANbus, but it like I said, it has to be for any manufacturer.
Basically I was thinking that I could store some data on the flash drive via a download from the GPRS that had the codes for the particular car. The car could collect the data automatically throughtout the day, and then at the end of the day it would send mileage stuff.
So I guess my questions are as follows:
1: Is it really possible to control door locks using older OBDII systems?
2: What power can I get from the OBDII pin 16 battery connection?
3: Does anyone have any general suggestions for how to go about this project?
THANKS!!! Any help is very appreciate!!