For now, let’s skip over the electrical issues and build the actual display. First you need a box to host the project. I chose to use pegboard for the clock face because it already has ...

I had a section of wall to hang up these clipboards for my display. I measured to make sure I put everything an equal ...

Make that matrix tiny ... Each PCBA holds two groups of discrete LEDs each arranged into a 5×7 display. There’s enough density here for a full Latin character set and simple icons and graphics ...