This example listens for a byte coming from the serial port. When received, the board sends a keystroke back to the computer. The sent keystroke is one higher than what is received, so if you send an "a" from the serial monitor, you'll receive a "b" from the Leonardo (or Due). A "1" will return a "2" and so on.

• Arduino Leonardo, Micro, or Due board

Connect your board to your computer with a micro-USB cable.

Once programmed, open your serial monitor and send a byte. The Arduino will reply with a keystroke that is one number higher.

(:source http://github.com/arduino/Arduino/raw/master/build/shared/examples/09.USB/Keyboard/KeyboardSerial/KeyboardSerial.ino lang=arduino tabwidth=4:)

This example listens for a byte coming from the serial port. When received, the Leonardo or the Due send a keystroke back to the computer. The sent keystroke is one higher than what is received, so if you send an "a" from the serial monitor, you'll receive a "b" from the Leonardo (or Due). A "1" will return a "2" and so on.

• Arduino Leonardo or Arduino Due board

Connect your Leonardo or Due board to your computer with a micro-USB cable.

(:source lang=arduino tabwidth=4:) /*

 Keyboard test

 Reads a byte from the serial port, sends a keystroke back.
 The sent keystroke is one higher than what's received, e.g.
 if you send a, you get b, send A you get B, and so forth.

 The circuit:
 * none

 created 21 Oct 2011
 modified 27 Mar 2012
 by Tom Igoe

This example code is in the public domain.

 http://www.arduino.cc/en/Tutorial/KeyboardSerial
 */

void setup() {

  // open the serial port:

Serial.begin(9600);

  // initialize control over the keyboard:
  Keyboard.begin();

}

void loop() {

  // check for incoming serial data:
  if (Serial.available() > 0) {
    // read incoming serial data:
    char inChar = Serial.read();
    // Type the next ASCII value from what you received:
    Keyboard.write(inChar+1);
  }  

}

(:sourceend:)

(:source http://github.com/arduino/Arduino/raw/master/build/shared/examples/9.USB(Leonardo)/Keyboard/KeyboardSerial/KeyboardSerial.ino lang=arduino tabwidth=4:)

image developed using Fritzing. For more circuit examples, see the Fritzing project page

• ASCIITable

NB: When you use the Keyboard.print() command, the Arduino takes over your computer's keyboard! To insure you don't lose control of your computer while running a sketch with this function, make sure to set up a reliable control system before you call Keyboard.print(). This sketch is designed to only send a Keyboard command after the Leonardo has received a byte over the serial port.

Once programmed, open your serial monitor and send a byte. The Leonardo will reply with a keystroke that is one number higher.

(:include LeonardoSeeAlsoInclude:)

• ASCIITable

See Also

• Keyboard.write()
• Keyboard.print()
• Keyboard.println()

NB: When you use the Keybaord.print() command, the Arduino takes over your computer's keyboard! To insure you don't lose control of your computer while running a sketch with this function, make sure to set up a reliable control system before you call Keyboard.print(). This sketch is designed to only send a Keyboard command after the Leonardo has received a byte over the serial port.

(:source http://github.com/arduino/Arduino/raw/master/build/shared/examples/9.Keyboard/KeyboardSerial/KeyboardSerial.ino lang=arduino tabwidth=4:)

Circuit\\

(:source http://github.com/arduino/Arduino/raw/master/libraries/Keyboard/examples/KeyboardSerial/KeyboardSerial.ino lang=arduino tabwidth=4:)

This example listens for a byte coming from the serial port. When received, the Leonardo send a keystroke back to the computer. The sent keystroke is one higher than what is received, so if you send an "a" from the serial monitor, you'll receive a "b" from the Leonardo. A "1" will return a "2" and so on.

Examples > Keyboard Library

Keyboard Serial

 Reads a byte from the serial port, sends a keystroke back.  The sent keystroke is one higher than what's received, e.g.  if you send a, you get b, send A you get B, and so forth.

(:div class=BOM :) Hardware Required

• Arduino Leonardo board

Software Required

• none

(:divend:)

Circuit Connect your Leonardo board to your computer with a micro-USB cable.

Code

(:div class=code :) (:source http://github.com/arduino/Arduino/raw/master/libraries/Keyboard/KeyboardSerial/KeyboardSerial.ino lang=arduino tabwidth=4:) (:divend:)

\\