What do you do with 144 7-segment displays ... coded lookup tables for each digit. The lookup tables are stored in ROM, saving precious RAM on the Arduino. A clock wouldn’t be any good if ...

“I’ve built a digital clock made out of 144 seven-segment displays controlled by an Arduino Nano. The segments are controlled by 18 MAX7219 ICs which can control up to 64 individual LEDs or 8 ...

Check out the demonstration video below to learn more about the Arduino clock. “I built a countdown timer a couple of months ago using a two-digit mechanical 7-segment display which was driven ...

The Arduino fetches the time from a DS1302 RTC module and splits the result up into four-digit time ... it comes to 7-segment displays, we say the more the merrier. Here’s a clock that uses ...