tema5.ino

#include <Keyboard.h>

void setup() {
  Serial.begin(9600);
  Keyboard.begin();
}

void loop() {
  char letra;
  if (Serial.available() > 0) {
    letra = Serial.read();
    if (letra == 'z')	Keyboard.write('a');
    else	Keyboard.write(letra+1);
  }  
}