Nixieduino

Nixie clock with arduino shields

Nixieduino clock

Specification

    • 4 ИН-14 (IN-14) or ИН-8-2 (IN-8-2) nixie tubes with neon tube IN-3 (ИН-3) as separator dot
    • CNC-machined wooden case with aluminum back plate
    • Program time correction
    • Easily reprogrammable Arduino-based board
    • Standard Arduino shield connectors inside case
    • Simple control with rotary encoder
    • Supercapacitor for backup power supply

Overview

Nixieduino is a nixie clock, based on Arduino mega board. Original Arduino schematic was modified, but it still has possibilities to program device through USB with Arduino IDE. It also has all Arduino LED indicators, located inside case.

To extend capabilities of the devise, standard Arduino shield connector also present on board. Small shields fit perfectly inside the case, but room for shields is limited, so check inner dimensions if you want to add a shield in your clock.

Warning! There are high-voltage lines on board, do not touch board or plug shields when board is powered on.

Clock case has two parts milled on CNC from solid piece of wood. To protect wood surface they finished with hard wax oil. Clock case has also aluminum back plate, covered with black paint.

For controlling the clock there are push-button rotary switch and additional button on the back plate. For setting the clock only rotary encoder is used, and additional button switches display between hh:mm and MM:dd, so button can be reprogrammed for user purposes without interfering main clock function.

Program time correction can help to increase accuracy of the clock.

Nixieduino uses supercapacitors for extending operating time without external power supply. In that case there is no indication, but time counting doesn’t stop. Supercapacitor stores enough power for several days of clock ticking.

Nixieduino can be produced with IN-8-2 or IN-14 tubes. Main difference between these tubes is in form of “5” digit.

Nixieduino uses 12V DC (1A minimum) power supply with 5.5mm x 2.1mm power socket, the same, as an Arduino mega board.

IN-8-2 Walnut case

nixie clock walnut casenixie clock walnut casenixie clock walnut case
nixie clock walnut casenixie clock walnut casenixie clock walnut case
nixie clock walnut casenixie clock walnut casenixie clock walnut case

IN-14 Beech case

nixie clock beech casenixie clock beech casenixie clock beech case
nixie clock beech casenixie clock beech casenixie clock beech case
nixie clock beech casenixie clock beech casenixie clock beech case

Resources

You can download manual for device, schematic and firmware.

3D model

If you want to add a shield into the clock, you can check model dimensions. Remember, real dimensions can be slightly differ.