Each one illuminates in the color that represents the digit in the current time. For instance, I’m typing this sentence at 1:37PM. The clock uses 24-hour time, so let’s call it 13:37.
An RTC is used to keep accurate time, and the time is set by running a one-off program to initialise the clock. To tell the time, the LEDs are color coded. However, instead of using a binary ...
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