Project designed for 6 IN-8 Nixie tubes [hours : minutes : seconds].

For that Clock you will need one MCU boards NCM109 and one Tubes board NCT408

DIY KIT includes MCU (microcontroller unit) ATmega328p flashed with Arduino Uno Bootloader and sketch (Firmware)

DIY KIT compatible with Arduino UNO, so it allows you to write your own unique programs on the Arduino platform

All the latest sources are always available on our Github 'Afch' channel

PCB, Design, Schematics, Case and Software made by GRA & AFCH

Listing includes: 

• Tubes Board (NCT408) Bare PCB
• Control Board (NCM109) Bare PCB
• IN-8 Nixie Tubes – 6 pcs (optional, choose in selector)
• NE2H Neon Bulbs for Dots – 2 pcs (1 additional spare)
• Set of Electronic Parts and Components for NCT408+NCM109* Boards
• Set of Screws and Spacers for NCT408+NCM109 Boards
• Glass Columns (for four Dots) (optional, choose in selector)
• Socket pins (Set for 6 Tubes) (included)
• Power Supply (12V, 1A) (US, EU, UK, AU) (optional AC plug, choose in selector)
• Principal Electrical Scheme on paper
• BOM Lists for NCT408 and NCM109 Boards
• User Manual on a Vintage style paper

The base listing does NOT contain Columns and Power supply.
These parts you need to select in options.
Also you can buy these items separately.

*The MCU board support a variety of tubes, such: ZM1042, Z522M, Z566M, Z5220M, ZM1040, Z5660M, B566M, LC-631, IN-14, IN-18, IN-12, IN-8, IN-7, IN-1, IN-2, IN-4, IN-8, IN-15, IN-16, IN-17. To use this tubes You need appropriate tubes PCB(s)

Software Features:

• Clock support many kinds of Nixie tubes (6 tubes [hh:mm:ss] format and 4 tubes [hh:mm]).
• 12/24 hour format.
• Date format: DD:MM:YY
• Slote Machine (Ani poisoning)
• Unique RGB LEDs backlight with 16,7 millions colors.
• Very easy to switch LEDS off/on.
• As alarm sound clock uses standard RTTTL (Nokia format) melodies, so You can easy change it. (included songs: mission impossible, we wish you).
• Easy updating firmware via USB using Arduino IDE.
• Software based on Arduino sketch, so MCU has Arduino bootloader within.
• Power On Self Test (POST): LEDs test, tubes test, input voltage test, sound test.

Hardware Features:

• Integrated High Voltage Power supply 150 – 220V.
• ICSP connector for flashing Arduino Bootloader to blank MCU.
• 3 PWM channels for RGB LEDs 8 bit per channel = 24bit = 16,7 millions colors. It can be disabled in the menu (see manual).
• Test points for testing, adjust and control low and high voltage circuits.
• Pads for internal buttons and terminals for external buttons.
• Pads for internal USB connector and terminals for external USB.
• Terminals for internal and external power connector.
• Terminals for external and internal buzzer.
• 2 dots column with separate controls upper and lower dots.
• Power consumption: 11-14V, 360mA (Recommended power source: voltage 12V, current 1-2A).
• MCU board NCM109 has world smallest size: 100mmx50mm.
• Tubes board NCT408 size: 200mmx50mm.

*The MCU board support a variety of tubes, such: ZM1042, Z522M, Z566M, Z5220M, ZM1040, Z5660M, B566M, LC-631, IN-14, IN-18, IN-12, IV-8, IN-7, IN-1, IN-2, IN-4, IN-8, IN-15, IN-16, IN-17 in case if you build your own Tube boards.

DIY KIT for IN-8 Nixie Tubes Clock:

Boards dimensions in 2D and 3D

Example of assembled Boards

Example of assembled Nixie Tubes Clock on IN-8 Tubes with Columns

Example of assembled Nixie Tubes Clock on IN-8 Tubes without Columns

Principal Electrical Schemes:

User Manual