Android OBD response conversion to decimal
In my app i send four basic commands to OBD ports and get back hex data... I don't know why if i send the command:
ME: 010c
Car: 10c410c0000
Why the message don't start with 4? And get only 410c and the data that the obd receive from car?
I use this method for manage hex response and convert it to human readable data, and RawData is a String that take the message and clear all space, like this 41 0c 00 00 = 410c0000
public String getCalculatedResult() {
//TODO devo convertire i dati da esadecimale a decimale ed effettuare i calcoli
int calculatedData = 0;
String dataToShow = null;
//Log.d("ObdCommand", "rawData: " + rawData.substring(3));
calculatedData = Integer.parseInt(rawData.substring(7), 16);
if (Pattern.compile(Pattern.quote(rawData.substring(3,4)),
Pattern.CASE_INSENSITIVE).matcher("410D").find()){
Log.d("ObdCommand", "dentro 410D: ");
//Velocità veicolo km/h
dataToShow = String.valueOf(calculatedData) + " Km/h";
Log.d("ObdCommand", "rawData: " + dataToShow);
}else if (Pattern.compile(Pattern.quote(rawData.substring(3,4)),
Pattern.CASE_INSENSITIVE).matcher("410C").find()){
Log.d("ObdCommand", "dentro 410C: ");
//Giri minuto veicolo rpm
calculatedData = calculatedData/4;
dataToShow = String.valueOf(calculatedData) + " rpm";
}else if (rawData.substring(3).startsWith("4105")){
//Temperatura refrigetante C°
calculatedData = calculatedData - 40;
dataToShow = String.valueOf(calculatedData) + " C°";
}else if (rawData.substring(3).startsWith("4151")){
//Tipo di carburante
if (rawData.substring(7).startsWith("09")){
//Benzina
dataToShow = "Benzina";
}else if (rawData.substring(7).startsWith("0d")){
//Metano
dataToShow = "Metano";
}
}
return dataToShow;
}
I use the rawData.substring(7) because 3 is the characters that i tell at the start of post
10c
And the other 4 are
410c
So i get only the value that i need to decimal... but sometimes i get outof bound....
Someone have some idea to get this with no problems?
Thanks
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