What do you get when you cross the hobbyist Arduino platform with Bluetooth and the On-Board Diagnostics (OBD-II) port found in every vehicle? Nobody really knows yet, but the developers of Freematics (a portmanteau of “free” and “telematics” aim to find out by opening up the combination to open source developers. One thing’s that certain is that the device can handle a lot of data about your car’s vital statistics such as its speed and engine RPMs. Turning that into something more meaningful for people will be left to developers who will be the main audience for the data collector. Freematics should be available in March 2014 to backers who pledge at least $89 AUD.