-The expected format of a single valued message is:
-
- {"name": "steering_wheel_angle", "value": 45}
-
-## Evented
-
-The expected format of an event message is:
-
- {"name": "button_event", "value": "up", "event": "pressed"}
-
-This format is good for something like a button event, where there are two
-discrete pieces of information in the measurement.
-
-## Official Signals
-
-These signal names are a part of the OpenXC specification, although some
-manufacturers may support custom message names.
-
-* steering_wheel_angle
- * numerical, -600 to +600 degrees
- * 10Hz
-* torque_at_transmission
- * numerical, -500 to 1500 Nm
- * 10Hz
-* engine_speed
- * numerical, 0 to 16382 RPM
- * 10Hz
-* vehicle_speed
- * numerical, 0 to 655 km/h (this will be positive even if going in reverse
- as it's not a velocity, although you can use the gear status to figure out
- direction)
- * 10Hz
-* accelerator_pedal_position
- * percentage
- * 10Hz
-* parking_brake_status
- * boolean, (true == brake engaged)
- * 1Hz, but sent immediately on change
-* brake_pedal_status
- * boolean (True == pedal pressed)
- * 1Hz, but sent immediately on change
-* transmission_gear_position
- * states: first, second, third, fourth, fifth, sixth, seventh, eighth,
- reverse, neutral
- * 1Hz, but sent immediately on change
-* gear_lever_position
- * states: neutral, park, reverse, drive, sport, low, first, second, third,
- fourth, fifth, sixth
-* odometer
- * Numerical, km
- 0 to 16777214.000 km, with about .2m resolution
- * 10Hz
-* ignition_status
- * states: off, accessory, run, start
- * 1Hz, but sent immediately on change
-* fuel_level
- * percentage
- * 2Hz
-* fuel_consumed_since_restart
- * numerical, 0 - 4294967295.0 L (this goes to 0 every time the vehicle
- restarts, like a trip meter)
- * 10Hz
-* door_status
- * Value is State: driver, passenger, rear_left, rear_right.
- * Event is boolean: true == ajar
- * 1Hz, but sent immediately on change
-* headlamp_status
- * boolean, true is on
- * 1Hz, but sent immediately on change
-* high_beam_status
- * boolean, true is on
- * 1Hz, but sent immediately on change
-* windshield_wiper_status
- * boolean, true is on
- * 1Hz, but sent immediately on change
-* latitude
- * numerical, -89.0 to 89.0 degrees with standard GPS accuracy
- * 1Hz
-* longitude
- * numerical, -179.0 to 179.0 degrees with standard GPS accuracy
- * 1Hz
-
-## Raw CAN Message format
-
-An OpenXC vehicle interface may also output raw CAN messages. Each CAN message
-is sent as a JSON object, separated by newlines. The format of each object is:
-
- {"bus": 1, "id": 1234, "value": "0x12345678"}
-
-**bus** - the numerical identifier of the CAN bus where this message originated,
- most likely 1 or 2 (for a vehicle interface with 2 CAN controllers).
-
-**id** - the CAN message ID
-
-**data** - up to 8 bytes of data from the CAN message's payload, represented as
- a hexidecimal number in a string. Many JSON parser cannot handle 64-bit
- integers, which is why we are not using a numerical data type.
-
-License
-=======
-
-Copyright (c) 2012-2013 Ford Motor Company
-
-Licensed under the BSD license.
-
-[OpenXC]: http://openxcplatform.com