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Propeller-like clock based on PSU fan

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BlackMamba

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Project by lukasb9
Source here

Described is so-called specter-clock based on PC computer PSU fan. Power supply for rotating part is taken from coreless transformer, time is set via uart (clock stopped) or by pushbuttons (clock rotating), information transfer is based on clock power supply modulation. A heart of design is ATmega8, real time is controlled by pcf8583 with battery backup. Accuracy of time is dependent on 32,768 kHz quarz oscillator used.

 

Re: Propeller-like clock

Very nice.

So your are using a power supply fan to propel the display?

BigDog
 

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