Finally made my first useful application for Arduino after so many breadboard prototyping - a 4 digit clock. It is made using an Arduino, DS1307 realtime clock, four 35mm 7-segments LEDs and driven by four 74HC595 shift registers. The fun part of this is that I can customize the behavior of the di…

Arduino Clock with 7-Seg LED, DS1307 & 74HC595

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