Sure, you could put it in a case, but we think a clock this crazy deserves to be left open – so you can see it in all its glory. Posted in clock hacks Tagged 7-segment display, clock, multiplex ...

This time [jegatheesan.soundarapandian] is making it big by building a giant 7 feet tall 7-segment display. Apparently, the plan is to build a giant clock so he started off by making the first digit.

By using these driver ICs, the complexity of wiring and control is significantly reduced. “I’ve built a digital clock made out of 144 seven-segment displays controlled by an Arduino Nano.

“I built a countdown timer a couple of months ago using a two-digit mechanical 7-segment display which was driven by 14 servos and an Arduino Mega. It came out quite well, and a number of people ...