With ELM 327 based modules (and possibly others too) the ATRV command returns the current voltage of the vehicles electrical system. Is there a way to get this integrated into CF's OBD plugin? It would not only be good to have to keep an eye on but to be able to set warnings for low voltage (and warnings for the rest of the sensors as well btw) and even shut the carpc down if the voltage reached a preset voltage ie. too low.