Arduino keyboard Input language problem

Question

I need my Arduino (Leonardo) to open cmd, but if keyboard input language isn’t English it prints another language letters.

——— code ———

Keyboard.begin();
Keyboard.press(KEY_LEFT_GUI);
Keyboard.press('r');
delay(1000);
Keyboard.releaseAll();
Keyboard.write("cmd");
Keyboard.press(KEY_RETURN);
Keyboard.releaseAll();
delay(1000);

——— ——— ———

So my question is: can I somehow detect language, and if it’s not there add it?

My idea was to set languagelist via powershell, and it would be perfect for my program, but I don’t know how I can write English text from Arduino on pc with another language :(

Also my Arduino has sd card, maybe it helps.

——— code ———

powershell $OldList = Get-WinUserLanguageList

powershell Set-WinUserLanguageList -LanguageList en-US -Force

-something

powershell Set-WinUserLanguageList -LanguageList $OldList -Force

——— ——— ———

Sorry if it is 0iq question, I’m very new to Arduino, it will be great to hear your ideas!

@jsotola, oh sorry, but about what is it then? Can i rephrase my question like: Is there a way to print english text via arduino on system with another input language? thank you for your reply! — Mapagmataas, Sep 21 '22 at 06:57
As any other USB keyboard, your Arduino cannot change the host's input language. There is no way that your keyboard can directly change the input language. — the busybee, Sep 21 '22 at 07:09
Absolutely no way? Like copy from file from sd or check it somehow? Thank you anyway @thebusybee! — Mapagmataas, Sep 21 '22 at 07:18
Maybe there is a way to check printed text and if it is not english alt+shift? — Mapagmataas, Sep 21 '22 at 07:25

Edgar Bonet · Answer 1 · 2022-09-21T11:45:01.777

2

Your Arduino will be virtually typing on a keyboard like this:

See the labels on the keys? There are none. Your Windows OS has its own idea of what each key means, but the Arduino has no way of knowing that. Instead, you have to tell it explicitly what keyboard layout to use, e.g.:

Keyboard.begin(KeyboardLayout_fr_FR);

If you don't, the Keyboard library will assume KeyboardLayout_en_US.

There is no way the computer can tell the keyboard what layout it expects.

edited Sep 21 '22 at 11:45

answered Sep 21 '22 at 07:16

Edgar Bonet

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That's sad, thank you for your reply, now i'm undarstand it – Mapagmataas Sep 21 '22 at 07:20
Sorry, Maybe there is a way to check printed text and if it is not english alt+shift? @EdgarBonet – Mapagmataas Sep 21 '22 at 07:33
@Mapagmataas: Yes, you can check by looking at the screen. But a keyboard cannot do that, and neither can an Arduino posing as a keyboard. – Edgar Bonet Sep 21 '22 at 07:35
Sorry, i am newby with arduino) Thank you! – Mapagmataas Sep 21 '22 at 07:36
@Mapagmataas it has nothing to do with Arduino ... the problem is with computers and keyboards – jsotola Sep 21 '22 at 14:19
@jsotola: In principle you are right. However, this is the kind of info you only care about when you start using the Arduino Keyboard library. – Edgar Bonet Sep 21 '22 at 14:36

Mapagmataas · Answer 2 · 2022-09-21T12:38:06.643

i finaly found a solution for my problem. I wrote an algorithm, that automaticly change system input language if there are only two languages and one of them is English. This code is writen on Duckduino shortcuts, but it is not a problem to convert it back.

DELAY 1000

GUI r
DELAY 1000
STRING powershell
ENTER
DELAY 1000
STRING "ok"
ENTER
DELAY 1000
STRING Set-WinUserLanguageList -LanguageList en-US, ru -Force
ENTER
DELAY 1000
STRING exit
ENTER
DELAY 1000

ALT SHIFT
DELAY 1000
GUI r
DELAY 1000
STRING powershell
ENTER
DELAY 1000
STRING "ok"
ENTER
DELAY 1000
STRING Set-WinUserLanguageList -LanguageList ru, en-US -Force
ENTER
DELAY 1000
ALT SHIFT
DELAY 1000
STRING exit
ENTER
DELAY 1000

GUI r
DELAY 1000
STRING powershell
ENTER
DELAY 1000
STRING "ENGLISH"
ENTER
DELAY 1000

You can use for ru another language, for "ok" i want to add Get-WinUserLanguageList | ConvertTo-Json | Out-File C:\WinUserLanguageList.json to save user's list.

Than language is different than english this code makes errors, and than language is right it changes language list, thats how it works!

Update:

DELAY 1000

GUI r
DELAY 1000
STRING powershell
ENTER
DELAY 1000
STRING Get-WinUserLanguageList | ConvertTo-Json | Out-File C:\WinUserLanguageList.json
ENTER
DELAY 1000
STRING Set-WinUserLanguageList -LanguageList en-US, ru -Force
ENTER
DELAY 1000
STRING exit
ENTER
DELAY 1000

ALT SHIFT
DELAY 1000
GUI r
DELAY 1000
STRING powershell
ENTER
DELAY 1000
STRING Get-WinUserLanguageList | ConvertTo-Json | Out-File C:\WinUserLanguageList.json
ENTER
DELAY 1000
STRING Set-WinUserLanguageList -LanguageList ru, en-US -Force
ENTER
DELAY 1000
ALT SHIFT
DELAY 1000
STRING exit
ENTER
DELAY 1000

GUI r
DELAY 1000
STRING powershell
ENTER
DELAY 1000
STRING "CODE IN ENGLISH"
ENTER
DELAY 1000
STRING exit
ENTER
DELAY 1000

GUI r
DELAY 1000
STRING powershell
ENTER
DELAY 1000
STRING Get-WinUserLanguageList
ENTER
DELAY 1000
STRING $importedFile = Get-Content C:\WinUserLanguageList.json | ConvertFrom-Json
ENTER
DELAY 1000
STRING $langCollection = New-Object System.Collections.Generic.List[Microsoft.InternationalSettings.Commands.WinUserLanguage]
ENTER
DELAY 1000
STRING foreach ($item in $importedFile) {
ENTER
DELAY 1000
STRING $lang = [Microsoft.InternationalSettings.Commands.WinUserLanguage]::new($item.LanguageTag)
ENTER
DELAY 1000
STRING $lang.InputMethodTips.Clear()
ENTER
DELAY 1000
STRING foreach ($inputMethod in $item.InputMethodTips) {
ENTER
DELAY 1000
STRING $lang.InputMethodTips.Add($inputMethod) }
ENTER
DELAY 1000
STRING $lang.Handwriting = $item.Handwriting
ENTER
DELAY 1000
STRING $lang.Spellchecking = $item.Spellchecking
ENTER
DELAY 1000
STRING $langCollection += $lang }
ENTER
DELAY 1000
STRING Set-WinUserLanguageList $langCollection -Force
ENTER
DELAY 1000
STRING Remove-Item C:\WinUserLanguageList.json
ENTER
DELAY 1000
STRING exit
ENTER
DELAY 1000

GUI r
DELAY 1000
STRING https://ma.kak.si
ENTER

Arduino keyboard Input language problem

2 Answers2