The next step is to create a Frame for storing the electronics. I just put 4 pieces in a rectangle and glued them together. In the corners there are some Wooden "Blocks" for more stability.

Additional i milled some Notches to feed a cable through. on the bottom in this picture there are the hooks to gang it against a wall.

I first thought about using a 5mm Plywood but it was not sturdy enough and i upgraded to 15mm (Since it was available from the left over pieces at the Hardwarestore).

In this picture i removed the Electronics to not spoil your reading experience ;-)

But there are already the cables visible: 5V, GND and Data In.