Arduino Zeitronix reader / logger

Not quite logging to SD in this code.. that part is in there but is not in use. Still working on KWP2000 & Zeitronix. Zeitronix bit is done and working well.

Here’s the Arduino / C++ code for capturing the Zeitronix stuff. I’m not bothering with the 3 byte start sequence in the output

#include 
#include 
#include 
#include 
#include 
#include 

const int chipSelect = 10;
int gotPacket = 0;
char packet[11];

void setup() {
    // Open serial communications and wait for port to open:
  Serial.begin(115200);
  Serial1.begin(9600);
  Serial1.setTimeout(100);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }
  Serial.print("Initializing SD card...");
  // see if the card is present and can be initialized:
  if (!SD.begin(chipSelect)) {
    Serial.println("Card failed, or not present");
    // don't do anything more:
    return;
  }
  Serial.println("card initialized.");

}


void getZeitronixPacket(char* packetpointer){
gotPacket = 0;
char buffer[32] = {0xF}; // buffer 32 bytes to make sure we find the 3 byte start sequence.
  for (int i=0; i<32; i++){
    Serial1.readBytes(&buffer[i],1);
    if (i > 1 && buffer[i] == 2 && buffer[i-1] == 1 && buffer[i-2] == 0) {
          gotPacket = 1;
          Serial1.readBytes(packetpointer,11);
          return;
    }
  }
}


void exampleStuff() {
  // make a string for assembling the data to log:
  String dataString = String(millis()) += ",";

  // read three sensors and append to the string:
  for (int analogPin = 0; analogPin < 3; analogPin++) {
    int sensor = analogRead(analogPin);
    dataString += String(sensor);
    if (analogPin < 2) {
      dataString += ",";
    }
}

  // open the file. note that only one file can be open at a time,
  // so you have to close this one before opening another.
  File dataFile = SD.open("datalog.txt", FILE_WRITE);

  // if the file is available, write to it:
  if (dataFile) {
    dataFile.println(dataString);
    dataFile.close();
    // print to the serial port too:
    Serial.println(dataString);
  }
  // if the file isn't open, pop up an error:
  else {
    Serial.println("error opening datalog.txt");
  }
}

void loop() {
char dataString[80];

while (Serial1.available() > 32){ // wait til there's a nice chunk in the serial buffer
    getZeitronixPacket(packet);
    // this would be our logtosd() below:
    if (gotPacket == 1) {
      sprintf(dataString, "%lu,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u", millis(),packet[0],packet[1],packet[2],packet[3],packet[4],packet[5],packet[6],packet[7],packet[8],packet[9],packet[10]);
      Serial.println(dataString);
    }
}

// Serial.print(".");


}