NicoHood/HID

Custom Symbol / non ascii character

Opened this issue · 9 comments

birdpump commented

Hello, I want to make a keyboard with the symbols × and ÷, but I cannot find how I could do that. A shortcut for ÷ is alt + 0247, and I tried that in the code but it doesent work. Thanks, Marc
Keyboard.press(KEY_LEFT_ALT); delay(500); Keyboard.write('0'); delay(200); Keyboard.write('2'); delay(200); Keyboard.write('4'); delay(200); Keyboard.write('7'); Keyboard.releaseAll(); delay(600);

NicoHood commented

Hmmm, does it work when you manually enter that combination? Your code looks correct.

birdpump commented

Yes, it works perfectly when I do it

NicoHood commented

Try to use strings instead of characters.

Keyboard.write('0');
// new
Keyboard.write("0");
birdpump commented

Ok, got it working. Instead of using Keyboard.write("0") or Keyboard.write('0') I used the keypad name

Keyboard.press(KEY_LEFT_ALT); 
    delay(100); 
    Keyboard.press(KEYPAD_0); 
    delay(100); 
    Keyboard.press(KEYPAD_2); 
    delay(100); 
    Keyboard.press(KEYPAD_4); 
    delay(100); 
    Keyboard.press(KEYPAD_7); 
    delay(700);
    Keyboard.releaseAll(); `
birdpump commented

You might want to include this in the wiki for people who want custom characters

NicoHood commented

That is a good idea! I will reopen this issue.

Did you also try if the "normal" numbers on your real keyboard work? I am really confused that your first code did not work.

birdpump commented

Hmm, the top numbers don't work even if I do it manually,
so that is why the code wasn't working

NicoHood commented

Does this work for you?

Keyboard.press(KEY_LEFT_ALT); 
delay(100); 
Keyboard.write(KEYPAD_0); 
delay(100); 
Keyboard.write(KEYPAD_2); 
delay(100); 
Keyboard.write(KEYPAD_4); 
delay(100); 
Keyboard.write(KEYPAD_7); 
delay(700);
Keyboard.releaseAll();

Or even without delay?

Keyboard.press(KEY_LEFT_ALT); 
Keyboard.write(KEYPAD_0); 
Keyboard.write(KEYPAD_2); 
Keyboard.write(KEYPAD_4); 
Keyboard.write(KEYPAD_7); 
Keyboard.releaseAll();

Where can I lookup those key combinations? Lets say I want to add a smiley like that: https://www.compart.com/de/unicode/U+1F642

birdpump commented

Yup, both of them work fine and they put ÷. You can find those codes by just looking them up for the character you want or use this table https://theasciicode.com.ar/