onkeypressed focus to the next textbox

This is my code:

for($i=0;$i<5;$i++)
{
     echo"<input type='text' autocomplete='off' class='form-control text-center fw-bold mx-auto text-uppercase align-top mr-1' name=$count maxlength='1' style='font-size: 40px;height: 75px;width: 75px' required>";
     $count++;
}

I would like it to take you to the textbox as soon as you click a button, I’ve tried many ways but none of them worked.
Thanks in advance for the advice <3

I tried to modify an example where when you press a button an alert appears but nothing.

I tried with this but without the control for the enter key but nothing