reading strings from serial port

[graynomad]

Here's another example,

// assumes a format like <???>
// NOTES:
//    no checking for buffer overflow
//    will hang if ">" never received
//    only designed for an app that has nothing else to do
//    no null termination of packet as not specifically designed for strings
//
boolean in_packet = false;
char buffer[30];
int bptr = 0;

void loop()
{

      while(Serial.peek() == -1) {}; // wait for a character

      char c = Serial.read(); //reading from the serial

      if (c == '<') { // check for start of packet char, if not then ignore
            bptr = 0;
            in_packet = true;
            while (in_packet) {
                  if (Serial.available()) {
                        incomingData = Serial.read();

                        if (c == '>') {
                              handleData();
                              in_packet = false; // end of packet
                        } else {
                              buffer[bptr++] = c;
                        }
                  }
            }
      }
}

void handleData () {
   // deal with the data here
}

---

Rob