String mm = "98CDAC23EC94";

uint8_t arr[6];
void setup()
{
  Serial.begin(9600);
  //cosn(arr, mm);
  String p = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
  for (int i = 0; i < 26 ; i++) {
    String pp = String(p[i]);
    Serial.println(strtoul( (char*)pp.c_str(), nullptr, 36));

  } Serial.println(strtoul( "11z", nullptr, 36));
}
//template <typename >
void cosn(uint8_t *ar, String S)
{
  int g = 0;
  String p;
  for (int i = 0; i < 6 ; i++) {
    p = S[g] ;
    g++;
    p += S[g];
    g++;
    ar[i] =  strtoul( (char*)p.c_str(), nullptr, 16);
  }
}
void loop()
{ delay(100);
}