Recently, we published an entry-level Arduino project with a single seven-segment LED display. Although it’s an amazing DIY project, we noted that most of the readers are looking for more advanced ...

For those of us who remember LED calculators, the HP 5082-7400 series red “bubble” displays hold a special charm. Available in 3, 4, or 5-digit varieties, these multiplexed 7-segment displays provided ...

[Rod] is in a position to provide a community service on New Year’s Eve. He spends the evening at a relative’s house next to the beach. There are fireworks at midnight, but the crowd has no communal ...