This can truly take care of all of your timekeeping needs! Posted in clock hacks Tagged 7 segment, arduino, arduino 238, atomic clock, clock, dcf77, lcd display ...

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 ...