this is a simple clock based on a single geared stepper motor from nippon ... The motor is basically a 1:10 geared motor working at 18v with a 3mm shaft. The single motor is driven by a attiny2313 and l293dd circuit with the coded written in arduino ide. The single motor moves a gear train which in turn moves the minute ring and hour ring. The attiny pulses the motor every minute to move the minute wheel and the hour wheel.
programming instructions :
kit includes :
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I am a architect/industrial designer working in beijing . You can find a lot of my work on the following links