SmartCars and SmartRoads:

The replacement to the MIB500 is the MIB510, which shares the same multi-purpose features. ... It sends a String value, 010D, followed by the byte value 0x0D to the ELM327 IC. These values are interpreted by the IC as a request for live diagnostics (01) for the vehicle sensor for vehicle speed (0D). ... Crossbow MoteWorks™ Platform, Crossbow ... ................
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