Needing to clear buffer for some reason

[Whandall]

Serial Input Basics - updated

Updated Version Please note that this is a revised version of the advice in this earlier Thread which has become very long. As far as possible I have kept the code examples identical or simplifed them slightly. It should not be necessary to refer to the older Thread, but feel free to do so. Contents The following sections are in this Tutorial Introduction Serial data is slow by Arduino standards Example 1 - Receiving single characters Why code is organized into functions Exampl…

I use something like the following to call oneLineReceived when a line from Serial is complete.

void handleSerial() {
  static uint8_t bIndex;
  static uint8_t buffer[maxMsgLen + 1];
  bool lineReady = false;
  if (Serial.available()) {
    uint8_t inChar = Serial.read();
    if (inChar != cbLF) {
      if (inChar == cbCR) {
        lineReady = true;
      } else {
        buffer[bIndex++] = inChar;
        lineReady = (bIndex == maxMsgLen);
      }
      if (lineReady) {
        buffer[bIndex] = 0;
        oneLineReceived((const char*)buffer);
        bIndex = 0;
      }
    }
  }
}