Costumes are mandatory! So, as part of my costume, I have gotten the idea into my head that I'd like to build a wearable, battery-powered, 8-character alphanumeric display using 14-segment LEDs. I'm ...

We’re not sure, but the number of recognizable alphanumeric characters that a seven-segment display can manage seems to have more to do with human pattern recognition than engineering. It takes some ...