How to read a float after a char

Projects Programming
1

Hello

Let's say you read a text file with a string X1.525Y2.625 and you want the float value after x but doesn't always end with y it's always ends different and x value is always different. How would you go about this?

Thank you in advance

2

Give examples of the strings to be interpreted.

3

char code[50]="X1.555Y2.786";

//get x and y float values sometimes x ends with null and sometimes ends with other characters can be any character

4

If 'Y' always separates values:

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  unsigned int index;

  char msg[] = "X1.555Y2.786";
  char *ptr;

  ptr = strchr(msg, 'Y');
  if (ptr != NULL) {
    *ptr = '\0';
    index = ptr - msg;
    Serial.print("X = ");
    Serial.print(&msg[1]);
    Serial.print("   Y = ");
    Serial.println(&msg[index + 1]);
  }
}

void loop() {
  // put your main code here, to run repeatedly:

}
5

Check out "isdigit()" it will tell you whether a character is a digit or not.

6

Thank you everyone this has helped big time