30 Apr '17, 2am

A LED Strip Clock As Linear As Time

A LED Strip Clock As Linear As Time

We love custom clocks here at Hackaday, and are always thrilled to see each inventive means of time-keeping. In a seldom-seen take on the familiar device, the [Bastel Brothers]’s LED Strip Clock’s sleek profile finds itself in good company. The clock is a two-metre strip of 60 LEDs; every minute past the current hour corresponds to one lit LED, every fifth LED is turned to red in order to make reading minutes easier. So 3 red LEDs +3 green LEDs=18 minutes, with the hour marked by a third color. Sounds complex, but the [Brothers] are quick to say you get used to it quickly, especially when the 6 o’clock LED is centered at some noticeable object or feature. A custom and home-etched PCB using an ATtiny4313 instead of an Arduino are the clock’s brains, a Maxim DS1307 for time-keeping, and a simple rotary encoder as the input for setting the time. The processor was seen as exce...

Full article: http://hackaday.com/2017/04/29/a-led-strip-clock-as-linea...

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