* It's my first 4-layer PCB. 2 Layers would probably have been sufficient if I spent more time on optimizing the design. But I wanted to try out making a 4-layer PCB anyway.
* It's the first time I soldered TSSOP packages. They are a PITA if you are as motorically incompetent as I am.
==== More pictures ====
<gallery widths="400px" heights="300px">
Datei:Ancient_board_assembly.jpg|Assembled without the top plate. On the right the PCB and cables, on the top the rows of LEDs.
Datei:Ancient_board_original_lighting.jpg|Ancient board fully assembled with one blue-coded insert.
</gallery>