You’ll need to choose a combination of up/down/left/right characters (up to 10) to act as your encryption key. Type that in at startup. Then boot up a console and connect a
screen session to your Arduboy. Your passwords will be entered via the Serial connection.
# just an example - your /dev/tty.usbmodem port will probably be different screen /dev/tty.usbmodemHIDP1 9600
Choose an empty (or existing) password slot using up/down, then press “A” button, this will put you in “create password” mode. You should see prompts in the console. The entries are stored – encrypted – in EEPROM. N.B. I didn’t create or study the encryption cipher (see https://github.com/gioblu/Cape), and at a minimum the length of the password is stored in clear text, so don’t put your launch codes in here, but should be sufficient for storing most passwords.
Once your password is set, use “B” button to have Arduboy type your password.
@ChrisS I thought you might find this interesting!