Quantity   Component name
1 × arduino nano
1 × wooded sheet (thickness 3mm) to make a box with laser cut
1 × brass sheet (thickness 0.1mm) cut (5*5cm) to do the 3*3 matrice
1 × acrylic sheet The top of the box
2 × spring (1cm diameter and 5cm long) for the stamp
9 × nanopixel illuminate the box
1 × push button for the stamp
2 × m3 screw to fix all the parts of the stamp