char* binario[9];

char* char2binary(char c) {
  


    binario[8] = '\0'; // terminador nulo
    
    for (int i = 7; i >= 0; i--) {

        binario[7 - i] = bitRead(c, i) ? '1' : '0'; // Lee cada bit y lo convierte a '1' o '0'*/

    }
    
    return binario;
}


void setup() {
  char* resultat = char2binary('A');// put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}