Query responses

The query() function returns Response objects. These objects have the following properties:

Property	Description
value	The decoded value from the car
unit	The units of the decoded value
command	The OBDCommand object that triggered this response
message	The internal Message object containing the raw response from the car
time	Timestamp of response (as given by time.time())

The value property typically contains numeric values, but can also hold complex structures (depending upon the command being decoded).

If python-OBD is unable to retrieve a response from the car, an empty Response object will be returned. Use is_null() to check for empty responses.

Units

Unit values can be found in the Unit class (enum).

from obd.utils import Unit

Name	Value
NONE	None
RATIO	"Ratio"
COUNT	"Count"
PERCENT	"%"
RPM	"RPM"
VOLT	"Volt"
F	"F"
C	"C"
SEC	"Second"
MIN	"Minute"
PA	"Pa"
KPA	"kPa"
PSI	"psi"
KPH	"kph"
MPH	"mph"
DEGREES	"Degrees"
GPS	"Grams per Second"
MA	"mA"
KM	"km"
LPH	"Liters per Hour"