Arduino LCD Master Clock

This clock is designed to backup my Master Clock should it fail or need maintenance and is portable with battery backup. This clock uses an Arduino 328 Microprocessor to decode Time from the DCF77 “Atomic” Clock in Mainflingen near Frankfurt Germany. Time is displayed on a skeleton clock and a Blue 4x20 LCD display. Clock pulses to drive slave dials are monitored on an LED panel. 3 x 1.5volt AA cells provide battery backup when disconnected from the mains. The main board has a USB to UART connector so the clock software can be updated from a PC or even a Mac. Serial code is included for monitoring over the USB but is commented out.”

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