Nixie UNIVERSAL TUBE CLOCK KIT - Introduction; The main features of the clock

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Introduction
This parts kit intended for an electronics hobbyists that want to make a Nixie clock and do not want
go deep to complicated clock control electronics and software. This instruction step-by-step assists
you to assemble the clock.
The kit consists all necessary electronics parts (excluding Nixie tubes and power adapter) and a
microcontroller with pre-programmed an application software.
The main features of the clock
 Hours, Minutes and Seconds display
 12 or 24 hour operation modes
 Time accuracy is provided by built-in RTC (Real Time Clock) based on extremely precise
DS3231 module with temperature compensation and backup with CR2032 battery
 Programmable leading zero blanking
 Date display in either DD/MM/YY or MM/DD/YY format
 Alarm
 Simple time setting using three buttons
 Standard, crossfade and scrollback display modes
 “Slot Machine” Cathode poisoning prevention routine
 Programmable Blue LED tube lighting
 Not AC frequency dependent – works in all countries
 Auto increase of adjusting value for quick time setting
 Neon colon indicators blinking at 1 Hz
 Tubes are driven in high frequency dynamical indication and provide service for many years