Dimmer lamp 220Vac with 2 buttons.

Hi everyone! i'm matteo and i'm a beginner about arduino! i need to make a dimmer for a 220Vac lamp using 2 buttons, one for increase lighting and the other one for decrease lightning.. how can i make it?

thanks a lot!!

Attach a servo to the shaft of the pot in your dimmer, and use the two buttons to control the angle of the servo.