String *hexList[256];
String s0 // address



void setup() {
  Serial1.begin(115200);
  // pinMode(16, INPUT);
  // pinMode(25, OUTPUT);
}

void hexConv(char a, char b) {
  char buffer[4];
  static i = 0;
  sprintf(buffer, "0x%c%c", a, b);
  s0 = buffer;
  hexList[i] = &s0;
  i++;
}

bool sw_status; 
void loop() {


  hexConv('5', 'C');
  hexConv('0', 'F');
  Serial1.println(*hexList[0]);
  Serial1.println(*hexList[1]);


  // sw_status = digitalRead(16);

  // if(sw_status == 1) {
  //   digitalWrite(25, HIGH);
  // } else {
  //   digitalWrite(25, LOW);

  // }

  delay(10); // this speeds up the simulation
}