Help with Keyboard.write combinations Micro

Using Arduino Programming Questions
1

Hi, I am new to the Keyboard.write function and I need to write specific key combinations using my Micro.

These are the 4 combinations I need to write:

  1. 'Windows + 1' 2. 'Shift+N' 3.'Control + 1' 4. 'Control+Alt+C'

When I do for instance, Keyboard.write('Shift+n'); it returns only n and does not press shift.
I am struggling to find a reference for these combinations. Can anyone please help?

Thank you!

2

TRY Reading The Functions Manual

3

Thank you for your awnsers. I did try this, however, it is unclear how to use these?

I tried:

Keyboard.press('KEY_SHIFT');
Keyboard.press('n');
delay(1000);
Keyboard.release('KEY_SHIFT');
Keyboard.release('n');

}//

With this code I just get 'ntntnt' over and over and my computer is highlighting everything. Is there any examples of how these modifiers might be used in relation to the combinations I need? There are no code examples in this manual?

I would appreciate any examples. Thank you.

4

You are pressing them for 1 second!

Keyboard.press(KEY_LEFT_SHIFT);
Keyboard.press('n');
delay(10);
Keyboard.releaseAll();

There are examples supplied in the IDE :
Files -> Examples -> USB

5

Thank you for your quick answers. Sorry I miss typed and meant (10) not 100 ;
The problem is the code:
Keyboard.press('KEY_SHIFT');
Keyboard.press('n');

is still returning 'NT' and not (Shift +N). I don't understand Where is the 'T' coming from? Sorry if it is a stupid question. Thanks.

6

Post your full updated code, please.

7

Try that code.

8

Thanks. Here is my full code to test the 'shift +n'. Not sure if it is the best way to do it. I still need to figure out the other combinations posted above.

#include <Keyboard.h>
long count;
void setup(){
Serial.begin(9600);
Keyboard.begin(); // Initialise the library.

}

void loop()
{
count = count+1;
Serial.println(count);

if (count == 8500){
Keyboard.press('KEY_SHIFT');
Keyboard.press('n');
delay(10);
Keyboard.releaseAll();
count= 1;
}

}

9

I just tried this and it is still returning 'NT'. Not sure what is wrong. Thanks again.

10

Also, I do not see the 'Windows' key listed in the modifiers is it still possible to use this? I also need 'Windows + 1' to be initiated. Thanks.

11

There is no such thing as KEY_SHIFT and it also should not have single ticks around it. Try

Keyboard.press(KEY_LEFT_SHIFT);

I further suggest that you use a safety mechanism so your PC doesn't get spammed. I use what I call a safetyPin that must be tied to GND for the code to be able to send keys.

#include <Keyboard.h>

const byte safetyPin = A0;

long count;
void setup() {
  Serial.begin(57600);
  while (!Serial);
  Keyboard.begin(); // Initialise the library.

  pinMode(safetyPin, INPUT_PULLUP);

}

void loop()
{
  if (digitalRead(safetyPin) == HIGH)
  {
    return;
  }

  count = count + 1;
  Serial.println(count);

  if (count == 8500) {
    Keyboard.press(KEY_LEFT_SHIFT);
    Keyboard.press('n');
    delay(10);
    Keyboard.releaseAll();
    count = 1;
  }
}

And the Windows key is KEY_LEFT_GUI or KEY_RIGHT_GUI.

12

Sorry for the delayed reply. Thank you for the answer and suggestions. This all worked perfectly now!

13

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