It would be helpful if carman could use other ways to connect ie. omap's usart (serial on tespads working in r&d mode, other /dev/ttyX comming from usb2serial converters on chipsets like prolific which are known to work).
In fact it's all about serial connection to hardware obd dongle so why just stick to bluetoth?
Ok, it's cool and fancy but many of my friend buy old laptops with serial ports only for obd diagnostics. I haven't seen any bt-obd just because serials are enough for typical usage.