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NCV3.1-16 is the full nixie clock kit
including four IN-16 nixie tubes. The kit contains all
required electronic parts, preprogrammed microcontroller,
fittings, printed circuit board, column separator bulb and
nixie tubes (78 parts in total). Not included are enclosure
and wall-cube type power supply.
The clock is professionally designed using
the cutting-edge tools and technologies. Printed circuit board
is routed with considerations to requirements for SMPS, signal
interference, shielding and heat dissipation. Here is no doubt
- you will feel quality from the first sight. To ensure easy
assembly, no tiny SMD parts were introduced. Best, FR4 type
material is used for the PCBs.
All electronic parts are the best quality and
comes from the famous producers such as: Philips, Microchip,
Texas Instruments, STM, Maxim-Dallas, International
Rectifier, Yageo and others. The Nixie tubes are New-Old-Stock
and comes mostly from Russian military plants.
The clock's
firmware is driven by Round-Robbin scheduler. Several
industrial protocols are involved and dozens of tasks and
algorithms are coded. It is quite complex and contains many
thousands of code lines. It is programmed so that all settings
and tube's lifetime counter values are stored in the internal
EEPROM memory and are kept safely during the power outage.
Current version of firmware: v2.0.
Technical
data
Software
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Time display
12-hour mode
24-hour mode
AM/PM display
Programmable leading zero
suppression
Autorotate Date
display
Autorotate Seconds
display
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Date display
DD/MM mode
MM/DD mode
Leap year
correction
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Programmable column separator
(4 – modes)
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Programmable tubes shut-down
during night time
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Visual effects
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Tube's lifetime
counter
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Cathode poisoning
prevention
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Tube testing
routine
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Tubes backlight with
programmable brightness
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Temperature
display
Celsius readout
Fahrenheit readout
Programmable offset auto
correction
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Alarm clock
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Programmable power supply
voltage
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Time accuracy auto
correction
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All settings and time are
stored into EEPROM memory
Hardware
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Microchip PIC16F88 main
controller
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Programming
interface
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Drive mode: 4x1 multiplex
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High voltage power supply
with PWM – PI controller and software shut-down
(160V…200V)
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Dedicated MOSFET driver for
high efficiency SMPS
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2 pushbuttons
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Temperature sensor
(0…+99ºC)
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Tubes backlight 4 blue
LED
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Alarm buzzer
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Power supply: 9-15V @
600-1000mA DC; 5.5/2.1mm jack with positive inner.
recommended 12V 1A DC PSU. It does not matter stabilized
or not
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Auto recovery fuse
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High precision (10ppm)
timebase XTAL
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