index.js

// change subscribeSuccess function to output parsed data - need to add support for the other logs that are different sizes than 12 bytes

function subscribeSuccess(obj)
{
  //console.log("Subscribe Success : " + JSON.stringify(obj));

  if (obj.status == "subscribedResult")
  {
    var bytes = bluetoothle.encodedStringToBytes(obj.value);
    if (bytes.length == 12) {
      decodeLogData(bytes);
    }
    //console.log("Subscribed Result");
  }
  else if (obj.status == "subscribed")
  {
    console.log("Subscribed");
  }
  else
  {
    console.log("Unexpected Subscribe Status");
  }
}

misc.js

function getChecksum(bytes) {
    var checksum = 0
    for (var i = 0; i < bytes.length; i++) {
        checksum ^= bytes[i];
    }

    return checksum;
}

function getPIDInfo(pid) {
    var pidHex = getPIDHex(pid);
    var mode = pidHex.substr(0, 2);
    var num = pidHex.substr(2);

    for (var i = 0; i < responsePIDS.length; i++) {
        if(responsePIDS[i].mode == mode && responsePIDS[i].pid == num) {
            return responsePIDS[i];
        }
    }

    return null;
}

function getPIDHex(pid) {
    var temp = (pid).toString(16);
    return ("0000" + temp).substr(temp.length, 4).toUpperCase();
}

function decodeLogData(bytes) {
    var bytesChecksum = Array.prototype.slice.call(bytes);

    var u8 = new Uint8Array(bytes);
    var dataStream = new DataStream(u8);

    var dateTime = dataStream.readUint32();
    var pid = dataStream.readUint16();
    var flags = dataStream.readUint8();
    var checksum = dataStream.readUint8();
    var value = dataStream.readFloat32();

    bytesChecksum[7] = 0;

    var calculatedChecksum = getChecksum(bytesChecksum);

    if (checksum == calculatedChecksum) {
        var pidInfo = getPIDInfo(pid);
        if (pidInfo) {
            console.log(pidInfo.name + " = " + value);
        } else {
            console.log("AHHHHHHHHHHH PID INFO NOT FOUND");

            console.log("dataTime=" + dateTime +
                        " pid=0x" + (pid).toString(16).toUpperCase() +
                        " flags=" + flags +
                        " checksum=" + checksum +
                        " value=" + value);
        }
    } else {
        console.log("AHHHH checksum mismatch - checksum = " + checksum + " and calculatedChecksum = " + calculatedChecksum);

        console.log("dataTime=" + dateTime +
                    " pid=0x" + (pid).toString(16).toUpperCase() +
                    " flags=" + flags +
                    " checksum=" + checksum +
                    " value=" + value);
    }
}

obdInfo.js

/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * (C) Copyright 2013, TNO
 * Author: Eric Smekens
 */
'use strict';
function bitDecoder(byte) {
    return parseInt(byte, 2);
}
function convertDTCCheck(byteA, byteB, byteC, byteD) {
    //ByteB, ByteC and ByteD are not read. These bytes are for testing purposes, which is not supported in this module.
    var byteValue, mil, numberOfDTCs, reply;
    byteValue = parseInt(byteA, 16);
    if ((byteValue >> 7) === 1) {
        mil = 1;
    } else {
        mil = 0;
    }
    numberOfDTCs = byteValue % 128;
    reply = {};
    reply.numberOfErrors = numberOfDTCs;
    reply.mil = mil;
    return reply;
}
function convertDTCRequest(byteA, byteB, byteC, byteD, byteE, byteF) {
    var reply = {};
    reply.errors = [];

    var decodeDTCCode = function (byte1, byte2) {
        var codeString = "", firstChar;

        //If 00 00 --> No code.
        if ((byte1 === '00') && (byte2 === '00')) {
            return '-';
        }

        var firstByte = parseInt(byte1, 16);
        var firstCharBytes = firstByte >> 6;
        switch(firstCharBytes) {
            case 0:
                firstChar = 'P';
                break;
            case 1:
                firstChar = 'C';
                break;
            case 2:
                firstChar = 'B';
                break;
            case 3:
                firstChar = 'U';
                break;
            default:
                console.log('Error with DTC');
                break;
        }
        var secondChar = (firstByte >> 4) % 4;
        var thirdChar = firstByte % 16;
        codeString = firstChar + secondChar + thirdChar + byte2;
        return codeString;
    };

    reply.errors[0] = decodeDTCCode(byteA, byteB);
    reply.errors[1] = decodeDTCCode(byteC, byteD);
    reply.errors[2] = decodeDTCCode(byteE, byteF);
    return reply;
}
function convertLoad(byte) {
    return parseInt(byte, 16) * (100 / 256);
}
function convertTemp(byte) {
    return parseInt(byte, 16) - 40;
}
function convertFuelTrim(byte) {
    return (parseInt(byte, 16) - 128) * (100 / 128);
}
function convertFuelRailPressure(byte) {
    return parseInt(byte, 16) * 3;
}
function convertIntakePressure(byte) {
    return parseInt(byte, 16);
}
function convertRPM(byteA, byteB) {
    return ((parseInt(byteA, 16) * 256) + parseInt(byteB, 16)) / 4;
}
function convertSpeed(byte) {
    return parseInt(byte, 16);
}
function convertSparkAdvance(byte) {
    return (parseInt(byte, 16) / 2) - 64;
}
function convertAirFlowRate(byteA, byteB) {
    return (parseInt(byteA, 16) * 256.0) + (parseInt(byteB, 16) / 100);
}
function convertThrottlePos(byte) {
    return parseInt(byte, 16) * (100 / 255);
}

function convertOxygenSensorOutput(byte) {
    return parseInt(byte, 16) * 0.005;
}

//DTC
function notSupported() {
    console.log("There is no answer. This should not be happening.");
    return;
}
//VIN
function convertVIN_count(byte) {
    return byte;
}
function convertVIN(byte) {
    byte = byte.split("");
    var tmp=[], vin="";
    for(i in byte){
        tmp[i] = parseInt(byte[i]);
        tmp[i] = parseInt(tmp[i], 16);
        vin += String.fromCharCode(tmp[i]);
    }
    return vin;
}

var modeRealTime = "01";
var modeRequestDTC = "03";
var modeClearDTC = "04";
var modeVin = "09";

window.responsePIDS = [
    //Realtime data
    {mode: modeRealTime, pid: "00", bytes: 4, name: "pidsupp0",     description: "PIDs supported 00-20", min: 0, max: 0, unit: "Bit Encoded", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "01", bytes: 4, name: "dtc_cnt",      description: "Monitor status since DTCs cleared", min: 0, max: 0, unit: "Bit Encoded", convertToUseful: convertDTCCheck},
    {mode: modeRealTime, pid: "02", bytes: 4, name: "dtcfrzf",      description: "DTC that caused required freeze frame data storage", min: 0, max: 0, unit: "Bit Encoded", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "03", bytes: 8, name: "fuelsys",      description: "Fuel system 1 and 2 status", min: 0, max: 0, unit: "Bit Encoded", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "04", bytes: 2, name: "load_pct",     description: "Calculated LOAD Value", min: 0, max: 100, unit: "%", convertToUseful: convertLoad},
    {mode: modeRealTime, pid: "05", bytes: 1, name: "temp",         description: "Engine Coolant Temperature", min: -40, max: 215, unit: "Celsius", convertToUseful: convertTemp},
    {mode: modeRealTime, pid: "06", bytes: 1, name: "shrtft13",     description: "Short Term Fuel Trim - Bank 1,3", min: -100, max: 99.22, unit: "%", convertToUseful: convertFuelTrim},
    {mode: modeRealTime, pid: "07", bytes: 1, name: "longft13",     description: "Long Term Fuel Trim - Bank 1,3", min: -100, max: 99.22, unit: "%", convertToUseful: convertFuelTrim},
    {mode: modeRealTime, pid: "08", bytes: 1, name: "shrtft24",     description: "Short Term Fuel Trim - Bank 2,4", min: -100, max: 99.22, unit: "%", convertToUseful: convertFuelTrim},
    {mode: modeRealTime, pid: "09", bytes: 1, name: "longft24",     description: "Long Term Fuel Trim - Bank 2,4", min: -100, max: 99.22, unit: "%", convertToUseful: convertFuelTrim},
    {mode: modeRealTime, pid: "0A", bytes: 1, name: "frp",          description: "Fuel Rail Pressure (gauge)", min: -100, max: 99.22, unit: "%", convertToUseful: convertFuelRailPressure},
    {mode: modeRealTime, pid: "0B", bytes: 1, name: "map",          description: "Intake Manifold Absolute Pressure", min: 0, max: 765, unit: "kPa", convertToUseful: convertIntakePressure},
    {mode: modeRealTime, pid: "0C", bytes: 2, name: "rpm",          description: "Engine RPM", min: 0, max: 16383.75, unit: "rev/min", convertToUseful: convertRPM},
    {mode: modeRealTime, pid: "0D", bytes: 1, name: "vss",          description: "Vehicle Speed Sensor", min: 0, max: 255, unit: "km/h", convertToUseful: convertSpeed},
    {mode: modeRealTime, pid: "0E", bytes: 1, name: "sparkadv",     description: "Ignition Timing Advance for #1 Cylinder", min: -64, max: 63.5, unit: "degrees relative to #1 cylinder",  convertToUseful: convertSparkAdvance},
    {mode: modeRealTime, pid: "0F", bytes: 1, name: "iat",          description: "Intake Air Temperature", min: -40, max: 215, unit: "Celsius", convertToUseful: convertTemp},
    {mode: modeRealTime, pid: "10", bytes: 2, name: "maf",          description: "Air Flow Rate from Mass Air Flow Sensor", min: 0, max: 655.35, unit: "g/s", convertToUseful: convertAirFlowRate},
    {mode: modeRealTime, pid: "11", bytes: 1, name: "throttlepos",  description: "Absolute Throttle Position", min: 1, max: 100, unit: "%", convertToUseful: convertThrottlePos},
    //Below is not yet supported.
    {mode: modeRealTime, pid: "12", bytes: 1, name: "air_stat",     description: "Commanded Secondary Air Status", min: 0, max: 0, unit: "Bit Encoded", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "13", bytes: 1, name: "o2sloc",       description: "Location of Oxygen Sensors", min: 0, max: 0, unit: "Bit Encoded", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "14", bytes: 2, name: "o2s11",        description: "Bank 1 - Sensor 1/Bank 1 - Sensor 1 Oxygen Sensor Output Voltage / Short Term Fuel Trim", min: 0, max: 1.275, unit: "V", convertToUseful: convertOxygenSensorOutput},
    {mode: modeRealTime, pid: "15", bytes: 2, name: "o2s12",        description: "Bank 1 - Sensor 2/Bank 1 - Sensor 2 Oxygen Sensor Output Voltage / Short Term Fuel Trim", min: 0, max: 1.275, unit: "V", convertToUseful: convertOxygenSensorOutput},
    {mode: modeRealTime, pid: "16", bytes: 2, name: "o2s13",        description: "Bank 1 - Sensor 3/Bank 2 - Sensor 1 Oxygen Sensor Output Voltage / Short Term Fuel Trim", min: 0, max: 1.275, unit: "V", convertToUseful: convertOxygenSensorOutput},
    {mode: modeRealTime, pid: "17", bytes: 2, name: "o2s14",        description: "Bank 1 - Sensor 4/Bank 2 - Sensor 2 Oxygen Sensor Output Voltage / Short Term Fuel Trim", min: 0, max: 1.275, unit: "V", convertToUseful: convertOxygenSensorOutput},
    {mode: modeRealTime, pid: "18", bytes: 2, name: "o2s21",        description: "Bank 2 - Sensor 1/Bank 3 - Sensor 1 Oxygen Sensor Output Voltage / Short Term Fuel Trim", min: 0, max: 1.275, unit: "V", convertToUseful: convertOxygenSensorOutput},
    {mode: modeRealTime, pid: "19", bytes: 2, name: "o2s22",        description: "Bank 2 - Sensor 2/Bank 3 - Sensor 2 Oxygen Sensor Output Voltage / Short Term Fuel Trim", min: 0, max: 1.275, unit: "V", convertToUseful: convertOxygenSensorOutput},
    {mode: modeRealTime, pid: "1A", bytes: 2, name: "o2s23",        description: "Bank 2 - Sensor 3/Bank 4 - Sensor 1 Oxygen Sensor Output Voltage / Short Term Fuel Trim", min: 0, max: 1.275, unit: "V", convertToUseful: convertOxygenSensorOutput},
    {mode: modeRealTime, pid: "1B", bytes: 2, name: "o2s24",        description: "Bank 2 - Sensor 4/Bank 4 - Sensor 2 Oxygen Sensor Output Voltage / Short Term Fuel Trim", min: 0, max: 1.275, unit: "V", convertToUseful: convertOxygenSensorOutput},
    {mode: modeRealTime, pid: "1C", bytes: 1, name: "obdsup",       description: "OBD requirements to which vehicle is designed", min: 0, max: 0, unit: "Bit Encoded", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "1D", bytes: 1, name: "o2sloc2",      description: "Location of oxygen sensors", min: 0, max: 0, unit: "Bit Encoded", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "1E", bytes: 1, name: "pto_stat",     description: "Auxiliary Input Status", min: 0, max: 0, unit: "Bit Encoded", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "1F", bytes: 2, name: "runtm",        description: "Time Since Engine Start", min: 0, max: 65535, unit: "seconds", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "20", bytes: 4, name: "piddsupp2",    description: "PIDs supported 21-40", min: 0, max: 0, unit: "Bit Encoded", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "21", bytes: 4, name: "mil_dist",     description: "Distance Travelled While MIL is Activated", min: 0, max: 65535, unit: "km", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "22", bytes: 2, name: "frpm",         description: "Fuel Rail Pressure relative to manifold vacuum", min: 0, max: 5177.265, unit: "kPa", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "23", bytes: 2, name: "frpd",         description: "Fuel Rail Pressure (diesel)", min: 0, max: 655350, unit: "kPa", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "24", bytes: 4, name: "lambda11",     description: "Bank 1 - Sensor 1/Bank 1 - Sensor 1 (wide range O2S) Oxygen Sensors Equivalence Ratio (lambda) / Voltage", min: 0, max: 2, unit: "(ratio)", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "25", bytes: 4, name: "lambda12",     description: "Bank 1 - Sensor 2/Bank 1 - Sensor 2 (wide range O2S) Oxygen Sensors Equivalence Ratio (lambda) / Voltage", min: 0, max: 2, unit: "(ratio)", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "26", bytes: 4, name: "lambda13",     description: "Bank 1 - Sensor 3 /Bank 2 - Sensor 1(wide range O2S) Oxygen Sensors Equivalence Ratio (lambda) / Voltage", min: 0, max: 2, unit: "(ratio)", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "27", bytes: 4, name: "lambda14",     description: "Bank 1 - Sensor 4 /Bank 2 - Sensor 2(wide range O2S) Oxygen Sensors Equivalence Ratio (lambda) / Voltage", min: 0, max: 2, unit: "(ratio)", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "28", bytes: 4, name: "lambda21",     description: "Bank 2 - Sensor 1 /Bank 3 - Sensor 1(wide range O2S) Oxygen Sensors Equivalence Ratio (lambda) / Voltage", min: 0, max: 2, unit: "(ratio)", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "29", bytes: 4, name: "lambda22",     description: "Bank 2 - Sensor 2 /Bank 3 - Sensor 2(wide range O2S) Oxygen Sensors Equivalence Ratio (lambda) / Voltage", min: 0, max: 2, unit: "(ratio)", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "2A", bytes: 4, name: "lambda23",     description: "Bank 2 - Sensor 3 /Bank 4 - Sensor 1(wide range O2S) Oxygen Sensors Equivalence Ratio (lambda) / Voltage", min: 0, max: 2, unit: "(ratio)", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "2B", bytes: 4, name: "lambda24",     description: "Bank 2 - Sensor 4 /Bank 4 - Sensor 2(wide range O2S) Oxygen Sensors Equivalence Ratio (lambda) / Voltage", min: 0, max: 2, unit: "(ratio)", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "2C", bytes: 1, name: "egr_pct",      description: "Commanded EGR", min: 0, max: 100, unit: "%", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "2D", bytes: 1, name: "egr_err",      description: "EGR Error", min: -100, max: 99.22, unit: "%", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "2E", bytes: 1, name: "evap_pct",     description: "Commanded Evaporative Purge", min: 0, max: 100, unit: "%", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "2F", bytes: 1, name: "fli",          description: "Fuel Level Input", min: 0, max: 100, unit: "%", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "30", bytes: 1, name: "warm_ups",     description: "Number of warm-ups since diagnostic trouble codes cleared", min: 0, max: 255, unit: "", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "31", bytes: 2, name: "clr_dist",     description: "Distance since diagnostic trouble codes cleared", min: 0, max: 65535, unit: "km", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "32", bytes: 2, name: "evap_vp",      description: "Evap System Vapour Pressure", min: -8192, max: 8192, unit: "Pa", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "33", bytes: 1, name: "baro",         description: "Barometric Pressure", min: 0, max: 255, unit: "kPa", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "34", bytes: 4, name: "lambdac11",    description: "Bank 1 - Sensor 1/Bank 1 - Sensor 1 (wide range O2S) Oxygen Sensors Equivalence Ratio (lambda) / Current", min: 0, max: 2, unit: "(ratio)", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "35", bytes: 4, name: "lambdac12",    description: "Bank 1 - Sensor 2/Bank 1 - Sensor 2 (wide range O2S) Oxygen Sensors Equivalence Ratio (lambda) / Current", min: 0, max: 2, unit: "(ratio)", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "36", bytes: 4, name: "lambdac13",    description: "Bank 1 - Sensor 3/Bank 2 - Sensor 1 (wide range O2S) Oxygen Sensors Equivalence Ratio (lambda) / Current", min: 0, max: 2, unit: "(ratio)", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "37", bytes: 4, name: "lambdac14",    description: "Bank 1 - Sensor 4/Bank 2 - Sensor 2 (wide range O2S) Oxygen Sensors Equivalence Ratio (lambda) / Current", min: 0, max: 2, unit: "(ratio)", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "38", bytes: 4, name: "lambdac21",    description: "Bank 2 - Sensor 1/Bank 3 - Sensor 1 (wide range O2S) Oxygen Sensors Equivalence Ratio (lambda) / Current", min: 0, max: 2, unit: "(ratio)", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "39", bytes: 4, name: "lambdac22",    description: "Bank 2 - Sensor 2/Bank 3 - Sensor 2 (wide range O2S) Oxygen Sensors Equivalence Ratio (lambda) / Current", min: 0, max: 2, unit: "(ratio)", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "3A", bytes: 4, name: "lambdac23",    description: "Bank 2 - Sensor 3/Bank 4 - Sensor 1 (wide range O2S) Oxygen Sensors Equivalence Ratio (lambda) / Current", min: 0, max: 2, unit: "(ratio)", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "3B", bytes: 4, name: "lambdac24",    description: "Bank 2 - Sensor 4/Bank 4 - Sensor 2 (wide range O2S) Oxygen Sensors Equivalence Ratio (lambda) / Current", min: 0, max: 2, unit: "(ratio)", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "3C", bytes: 2, name: "catemp11",     description: "Catalyst Temperature Bank 1 /  Sensor 1", min: -40, max: 6513.5, unit: "Celsius", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "3D", bytes: 2, name: "catemp21",     description: "Catalyst Temperature Bank 2 /  Sensor 1", min: -40, max: 6513.5, unit: "Celsius", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "3E", bytes: 2, name: "catemp12",     description: "Catalyst Temperature Bank 1 /  Sensor 2", min: -40, max: 6513.5, unit: "Celsius", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "3F", bytes: 2, name: "catemp22",     description: "Catalyst Temperature Bank 2 /  Sensor 2", min: -40, max: 6513.5, unit: "Celsius", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "40", bytes: 4, name: "piddsupp4",    description: "PIDs supported 41-60", min: 0, max: 0, unit: "Bit Encoded", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "41", bytes: 4, name: "monitorstat",  description: "Monitor status this driving cycle", min: 0, max: 0, unit: "Bit Encoded", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "42", bytes: 2, name: "vpwr",         description: "Control module voltage", min: 0, max: 65535, unit: "V", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "43", bytes: 2, name: "load_abs",     description: "Absolute Load Value", min: 0, max: 25700, unit: "%", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "44", bytes: 2, name: "lambda",       description: "Fuel/air Commanded Equivalence Ratio", min: 0, max: 2, unit: "(ratio)", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "45", bytes: 1, name: "tp_r",         description: "Relative Throttle Position", min: 0, max: 100, unit: "%", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "46", bytes: 1, name: "aat",          description: "Ambient air temperature", min: -40, max: 215, unit: "Celsius", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "47", bytes: 1, name: "tp_b",         description: "Absolute Throttle Position B", min: 0, max: 100, unit: "%", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "48", bytes: 1, name: "tp_c",         description: "Absolute Throttle Position C", min: 0, max: 100, unit: "%", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "49", bytes: 1, name: "app_d",        description: "Accelerator Pedal Position D", min: 0, max: 100, unit: "%", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "4A", bytes: 1, name: "app_e",        description: "Accelerator Pedal Position E", min: 0, max: 100, unit: "%", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "4B", bytes: 1, name: "app_f",        description: "Accelerator Pedal Position F", min: 0, max: 100, unit: "%", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "4C", bytes: 1, name: "tac_pct",      description: "Commanded Throttle Actuator Control", min: 0, max: 100, unit: "%", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "4D", bytes: 2, name: "mil_time",     description: "Time run by the engine while MIL activated", min: 0, max: 65525, unit: "minutes", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "4E", bytes: 2, name: "clr_time",     description: "Time since diagnostic trouble codes cleared", min: 0, max: 65535, unit: "minutes", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "4F", bytes: 4, name: "exttest1",     description: "External Test Equipment Configuration #1", min: 0, max: 0, unit: "Bit Encoded", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "50", bytes: 4, name: "exttest2",     description: "External Test Equipment Configuration #2", min: 0, max: 0, unit: "Bit Encoded", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "51", bytes: 2, name: "fuel_type",    description: "Fuel Type", min: 0, max: 0, unit: "Bit Encoded", convertToUseful: bitDecoder},
    {mode: modeRealTime, pid: "52", bytes: 2, name: "alch_pct",     description: "Ethanol fuel %", min: 0, max: 100, unit: "%", convertToUseful: bitDecoder},

    //DTC's
    {mode: modeRequestDTC, pid: undefined, bytes: 6, name: "requestdtc", description: "Requested DTC", convertToUseful: convertDTCRequest}, //n*6 --> For each code, 6 bytes.

    {mode: modeClearDTC, pid: undefined, bytes: 0, name: "cleardtc", description: "Clear Trouble Codes (Clear engine light)", convertToUseful: notSupported},

    //VIN
    {mode: modeVin, pid: "00", bytes: 4, name: "vinsupp0", description: "Vehicle Identification Number", convertToUseful: bitDecoder},
    {mode: modeVin, pid: "01", bytes: 1, name: "vin_mscout", description: "VIN message count", convertToUseful: convertVIN_count},
    {mode: modeVin, pid: "02", bytes: 1, name: "vin", description: "Vehicle Identification Number", convertToUseful: convertVIN}
];