I am looking to streamline some data I record about my cars. My current approach is a manually edited spreadsheet with a ton of columns, which I must fill in at every fill-up and servicing. I have begun creating an android app which will save to a hosted database instead, but I'd like to simplify it even further. Rather than requiring input such as Odometer, trip, oil life, etc, I'd like to grab those from the OBD-II diagnostic port.
I've seen several which have their own applications, but I am looking for one which supports third party polling and APIs. Has anyone had any experience with this?
in general these ODB2 Bluetooth adapters are working with a modem protocol with AT commands. So basically you can connect to them via Bluetooth serial protocol and send in commands. A starting point in terms of documentation and which Bluetooth adapter to get is here:
http://blog.lemberg.co.uk/how-guide-obdii-reader-app-development