Fails with Caps-Lock=On or Key-Layout=LT

[sskras]

Trouble generating correct input with Caps Lock=On:

Or when the current keyboard layout uses numeric keys for different symbols:

[sskras]

Is this the actual lines present in the Firmware I got with the device?

      Keyboard.print(":q!");
      delay(1);
      Keyboard.send_now();

I ask because 5 lines above exhibits sending a key/scan code KEY_ESC:

      Keyboard.set_key1(KEY_ESC);
      Keyboard.send_now();

... which is different from the Keyboard.print() which seems to be designed to send logical symbols instead of physical key/scan-codes.

As we get wrong symbols in our case, I am lost about what Keyboard.print() actually does.

[ABLomas]

Problem with caps lock could probably be solved by changing line
Keyboard.print(":q!");
into

  Keyboard.print(":");  
  Keyboard.press(KEY_Q);
  Keyboard.release(KEY_Q);
  Keyboard.set_modifier(MODIFIERKEY_ALT);
  Keyboard.send_now();
  Keyboard.set_key1(KEYPAD_3);
  Keyboard.send_now();
  Keyboard.set_key1(0);
  Keyboard.send_now();
  Keyboard.set_key1(KEYPAD_3);
  Keyboard.send_now();
  Keyboard.set_key1(0);
  Keyboard.send_now();

(in other words - sending "literal symbol q" and after typing alt + 33, which is exclamation mark - i'm not sure that alt+code combo will work on exotic systems)
I do not have spare teensy2 anymore, only teensy3 around so need to re-work trigger code a bit to test...

[sskras]

If keyboard can sending key/scan codes only (as you imply), then I think you've got it vice-versa:

• char generated by pressing KEY_Q will depending on the Caps state.
  (So you should send the KEYPAD escape sequence for it too)
• char generated by pressing KEY_1 with MODIFIERKEY_SHIFT set will depend on the current keyboard driver map.
  (which you snippet tries to handle already)

AFAICS, your workaround should apply not only to the 2nd case, but to the 1st one too.

[sskras]

On the side note, can you tell whether this:

  Keyboard.press(KEY_Q);
  Keyboard.release(KEY_Q);

... would be different to this?

  Keyboard.set_key1(KEY_Q);
  Keyboard.send_now();
  Keyboard.set_key1(0);
  Keyboard.send_now();

IOW, why do you use the Keyboard.press() for pressing KEY_Q but not for KEYPAD_3 ?