Ok, the connections are very easy. Below you have the scheamtic for this project. Remember that we need the keyboard and mouse just for the configuration and then we romove those so we need to set the raspbery pi to enable smart mirror automatically when it is turned on since the mirror won't have controls. Ok, connect the LCD to the HDMI driver. Power that driver at 12V from the DC adaptor. Connect the Raspberry Pi HDMI to the display driver with the HDMI cable. Power the Pi with the 5V adaptor. Power both adaptors from 220V AC from main outlet. Connect all the USB pheriferials for now, the mouse, keybaord and WiFi antenna if your Pi dosn't have WiFi integrated.