parsing string

In case you get readings like “33, 58, 92″ , and need to parse it into individual numbers, here is some psudeocode.

// declare variable names at the beginning of the code
int a, b, c;

// read and parse string in void loop()
//%d stands for decimal integer, and correspond to the type of the pointer that follows
scanf (,”%d,%d,%d”,&a, &b, &c);

//do whatever you want with the numbers
Serial.print (a); // will print 33

Note that if your reading is bigger than integer, the number will be inaccurate . You’ll need to use unsigned integer, or long integer. You might also be reading float and charecters. For the corresponding format specifier, refer to


~ by cheng on April 23, 2010.

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