Custom PCB for an 8x8 LED Matrix circuit with through-hole components, hooked up "motherboard" on which a Particle Core is plugged - Together with a simplistic custom website that can be used to send messages to display on the 16 LED matrices as an LED screen.
8x8 LED Matrix
At the time it was called Spark Core :)
Interface and IO ICs / Display Interface
OpenBean aluminium profiles
Create the box structure on which transparent black acrylic is bolted