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 ...

For the 14 segment display, rather than using a 18650 cell or what not, you could use a straight 5v USB battery pack, assuming you get one that'll do 2+ amp out, and use this buck to take it down to 3 ...

Sometimes you’re looking for a component for a project that you know should exist, but you just cannot find it. Something like a 14-segment LED display, but not just one with a fixed color, instead ...