Project 31 : Keyboard Message
Console Message
At the point when the catch is squeezed in this model, a content string is shipped off the PC as console input. The string reports the occasions the catch has been squeezed. When you have the Leonardo customized and wired up, open up your number one content tool to see the outcomes.
NB: When you utilize the Keyboard.print() order, the Arduino assumes control over your PC's console! To guarantee you don't lose control of your PC while running a sketch with this capacity, try to set up a dependable control framework before you call Keyboard.print(). This sketch incorporates a pushbutton to flip the console, so it just pursues the catch is squeezed.
Equipment Required
Arduino Leonardo, Micro, or Due board
transient pushbutton
10k ohm resistor
Programming Required
Any content tool
Circuit
Join one pin of the pushbutton to nail 4 to the Arduino. Connect the other pin to 5V. Utilize the resistor as a draw down, giving a reference to ground, by appending it from pin 4 to ground.
Whenever you've modified your board, unplug the USB link, open a content manager and put the content cursor at in the composing region. Associate the board to your PC through USB again and press the catch to write in the record.
Circuit & shematics :
Code
Keyboard Message test
For the Arduino Leonardo and Micro.
Sends a text string when a button is pressed.
The circuit:
* pushbutton attached from pin 4 to +5V
* 10-kilohm resistor attached from pin 4 to ground
created 24 Oct 2011
modified 27 Mar 2012
by Tom Igoe
modified 11 Nov 2013
by Scott Fitzgerald
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/KeyboardMessage
*/
#include "Keyboard.h"
#include "HID.h"
const int buttonPin = 4 ; // input pin for pushbutton
int previousButtonState = HIGH ; // for checking the state of a pushButton
int counter = 0 ; // button push counter
void setup ( ) {
// make the pushButton pin an input:
pinMode ( buttonPin , INPUT ) ;
// initialize control over the keyboard:
Keyboard. begin ( ) ;
}
void loop ( ) {
// read the pushbutton:
int buttonState = digitalRead ( buttonPin ) ;
// if the button state has changed,
if ( ( buttonState != previousButtonState )
// and it's currently pressed:
&& ( buttonState == HIGH ) ) {
// increment the button counter
counter ++;
// type out a message
Keyboard. print ( "You pressed the button " );
Keyboard. print ( counter ) ;
Keyboard. println ( " times." ) ;
}
// save the current button state for comparison next time:
previousButtonState = buttonState ;
}
