samplejson.def

{ 
  "mids":
  {
    "131": "Custom mid definition for one three one"
  },
  "pids":
  {
    "84": "A redefined eighty-four (to the moon)",
    "192": "A redefined one ninety-two (to somewhere)",
    "211": "testing special PID"
  },
  "pid_fields":
  { 
    "211":{
      "ByteDef": { "a": "Num bytes", "b": "byte val"},
      "Sequence": "ab",
            "DataType": "Junk",
            "MaximumRange": "Junk",
            "MessagePriority": "2",
            "ParameterDataLength": "var",
            "Resolution": "junk",
            "Summary": "Summary",
            "TransmissionUpdatePeriod": "1.3 m"
    },
    "84": 
        {
            "ByteDef": {
                "a": "velocity toward the moon"
            },
            "DataType": "Unsigned Short Integer",
            "MaximumRange": "0.0 to 205.2 km/h (0.0 to 127.5 mph)",
            "MessagePriority": "4",
            "ParameterDataLength": "1 Character",
            "Resolution": "0.305 km/h (0.5 mph)",
            "Sequence": "a",
            "Summary": "The velocity of the vehicle approaching the moon, from the perspective of one standing on the moon",
            "TransmissionUpdatePeriod": "0.3 s"
        },
    "192": 
        {
            "ByteDef": {
                "a": "velocity toward the moon",
                "b": "velocity toward the sun",
                "c": "velocity toward Jupiter",
                "d": "velocity toward the Earth",
                "e": "velocity toward the outerverse"
            },
            "DataType": "Unsigned Short Integer",
            "MaximumRange": "0.0 to 205.2 km/h (0.0 to 127.5 mph)",
            "MessagePriority": "4",
            "ParameterDataLength": "Variable",
            "Resolution": "0.305 km/h (0.5 mph)",
            "Sequence": "a,b,c,d/e,c/d,a/d,b/d",
            "Summary": "The velocity of the vehicle approaching somewhere",
            "TransmissionUpdatePeriod": "0.3 s"
        }
  }
}