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Arduino DCF77 Master Clock with pulse outputs for driving electromechanical slave clocks 2014-09-17

oliverb

Member
oliverb submitted a new article:

Arduino DCF77 Master Clock with pulse outputs for driving electromechanical slave clocks - A Master Clock synchronised to the DCF77 radio clock that provides pulses for slave clocks

Arduino powered DCF77 Master Clock for driving electromechanical slave clocks


See 4K demo video below showing clock chiming 10 0'clock



Features
Arduino 328 Microprocessor is used to decode Time & date from the DCF77 "Atomic" Clock in Mainflingen near Frankfurt Germany

The DCF77 signal is decoded using the fantastic new...
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AndrewH7

New Member
I've made 2 slave clocks, 1st used an analogue 1 using its 2nd hand + a magnet going around to switch reed switch (all powered from 1½ volt dry electric cell), then 2nd used 555 timer & 2 transistor flip-flop & +1 transistor & also reed relay [@ 9 volt] to 1½ volt dry electric cell.
 

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