By using a band saw a 3 cm thick slice of wood was cut off the area of the wooden block. This peace was reattached later, to give the illusion of a unprepared peace of wood. The area underneath was hollowed out with the CNC milling machine. I manually drilled a hole that provides enough space for implementing a PS/2 Plug and a small perfboard. The 3 cm thick cover was glued back on for staging the object during the exhibition.
The inside is filled with stapeled wooden planks, that have a conductive upper surface by using aluminium tape. Eache plank has a cable attached to the conductive area, that is connected to toe PS/2 plug which leads to a Arduino board. If a nail penetrates two layers of wood a circuit is closed . In this case the programmed arduino scriped sends out a signal to let a certain amound of electricity to the lamp, wich causes a change in the brightness of it‘s light.