Mõistatus on iseenesest väga lihtne ja õigeid vahendeid kasutades lahendab end lausa ise. Lõpp-punktis logiraamatule ligi saamiseks võta kaasa 9V patarei.

char foo[] = {112, 97, 115, 115, 58};
char bar[] = {104, 101, 114, 110, 97, 110, 100, 111};
long int ar[] = {389031, 549467};
String arduino;
 
void setup() {
  Serial.begin(9600);
  for(int x = 0; x < 31; x++){
    arduino = arduino + "#";
  }
  arduino = arduino + "\n#        A R D U I N O        #\n";
  for(int x = 0; x < 31; x++){
    arduino = arduino + "#";
  }
  arduino = arduino + "\n#  N " + 17%6 + 26%9 + "." + ar[0]; 
  arduino = arduino + "   E " + 32%3 + 49%5 + "." + ar[1] + "  #\n";
  for(int x = 0; x < 31; x++){
    arduino = arduino + "#";
  } 
  arduino = arduino + "\n#       ";
  for(int x = 0; x < sizeof(foo); x++){
    arduino = arduino + foo[x];
  }
  arduino = arduino + " ";
  for(int x = 0; x < sizeof(bar); x++){
    arduino = arduino + bar[x];
  }
  arduino = arduino + "        #\n";
  for(int x = 0; x < 31; x++){
    arduino = arduino + "#";
  }
  Serial.print(arduino);  
}
 
void loop() {
}