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What do you do with 144 7-segment displays ... This presented a problem, as [Frugha] wanted to control the clock with a single Arduino Nano. Even charlieplexing won’t get you that many I ...
And we end up seeing all kinds of display techniques being used to show time. For the simplest of builds, 7-segment display ... pretty plain vanilla — an Arduino Nano clone, a DS3231 RTC ...