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Controlling third-party I2C devices via Freematics OBD

Posted: Sat Dec 20, 2014 1:01 am
by mdj
We are interested in using the Freematics Vehicle Data Logger (OBD-C) as a prototyping platform, and would like to make sure that it supports what we intend.

Aside from logging OBD PID information (and GPS/Accel) we want to control a home-made module via BLE -> OBD-C -> I2C.
Is it possible to connect additional I2C devices to its bus?

Thanks,
Morten

Re: Controlling third-party I2C devices via Freematics OBD

Posted: Sat Dec 20, 2014 8:51 pm
by stanley
Sure you can. The ATMega328 in the data logger can work as I2C master. Actually the onboard MPU6050 is accessed via I2C.