Can A1 to A4 used as buttons too?

[exico]

sure, if you want analog input port use for button, no problem, if you want let output different voltage, so you can add many button by one GPIO. because different voltage output means different button pressed.

Hello, I received the boards. I tried to connect A1 to ground and use it as another input but that does not work.

Can you please provide me an example? I'm using esphome