How can I set a regular password/passcode in a U400?

Hi, first time Aqara purchaser. I do not have HomeKit or Aqara hubs yet. I have the U400 installed and connected to bluetooth. How do I set a password/passcode so I can enter it from the outside?

Hello, welcome to the forum. Theoretically, the access code can be set via Bluetooth using the Aqara home app. Install the app.