Intro: PS/2/You: Go-anywhere, LED digital message board
Combine three inexpensive LED matrix display panels, an Ardweeny microcontroller and a standard PS/2 computer keyboard into your own go-anywhere, instantly updatable 768-pixel digital message board. The code ...
Dry fit the PS/2 port, DC jack and power switch again into the notch in the end of the frame. Heat up a glue gun and dab a bit of glue on each one before quickly pressing it tightly into the notch.
This is an admittedly unorthodox way of attaching what would normally be PCB or panel-mounted components, but it has the advantage of being very strong and relatively tidy – a good substitute when there's no PCB or mountable panel nearby.