Parsing serial dats

Projects Programming
1

I have been trying to parse a stream of serial data that looks like this (i think it is spaced by tabs). I want to end up with an array of floats.

-1.1251 41.29 -0.03 0.00 0.0000 0.0 0.0 0 0.0 0.00 0.99 0.00 0.00 1

-1.1251 41.29 -0.03 0.00 0.0000 0.0 0.0 0 0.0 0.00 0.99 0.00 0.00 1

-1.1251 41.29 -0.03 0.00 0.0000 0.0 0.0 0 0.0 0.00 0.99 0.00 0.00 1

-1.1251 41.28 -0.03 0.00 0.0000 0.0 0.0 0 0.0 0.00 0.99 0.00 0.00 1

I have tried a few different approaches but I am not getting it to work. I made a loop that seems like it should do the job but it just does weird things to my code. please help.

void convertToFloatArray() {
if (newData == true) {
int p = 0;
int j = 0;
int k = 0;
char tokenPtr[] = {0};
float tokenFlPtr;

while( i <= 68 ) {
if (receivedChars[p] == ' '){
tokenFlPtr = atof(tokenPtr);
floatOutput[k] = tokenFlPtr;
p++;
j = 0;
k++;
}

else {
tokenPtr[j] = receivedChars[p];
p++;
j++;
}
}
}
}

2

The parse example in Serial Input Basics may give you some ideas.

...R

3

'\t' is the tab character. '\n' is the newline character. You may also see other characters such as carriage-return. Only accept characters you recognize and ignore all others.

tokenPtr[j]

How big can j get? How much storage did you allocate to tokenPtr? You are writing on memory you don't own.

4

Robin

thank you I did read the Serial basics but couldn't get the example to work until...

MorganS

I used '\t' and that changed everything so thank you both