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Nixie Clock

haXoru5·nixie_clock·Nixie_KiCad/Nixie_Clock.kicad_pcb

Nixie Clock PCB layout, top view — open source AVR/Arduino board by haXoru5
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About the Nixie Clock PCB

Nixie Clock is an open source AVR/Arduino PCB design by haXoru5, published on GitHub. It is a 2-layer board measuring 140 × 60 mm, with 34 components from 14 distinct parts.

Its main chip is the Arduino_Nano_Every, from the AVR/Arduino family. Other key parts include the K155ID1, IN-14, IN-3, L7812CV and PS_V2H. By type, the board carries 14 ICs, 10 capacitors, 9 resistors and 1 module.

It belongs with the displays & leds and power & battery designs in this gallery.

From the project

Clock built using Arduino Nano Every and IN-14 Nixie tubes

Retro style clock built using an Arduino and IN-14 Nixie tubes

IN-14 Nixie Tube IN-3 Nixie Tube High Voltage Power Supply K155ID1 BCD Decoder IC

DS3231 RTC DIP Sockets Female PCB Headers

L7812CV 12V Voltage Regulator NJM78M05FA 5V Voltage Regulator 1/4W THT Resistors SMT Capacitors

Nixie Clock, from the project README
From the project README

Main components on the Nixie Clock

K155ID1IN-14IN-3L7812CVPS_V2HNJM78M05FA‎DS3231Arduino_Nano_Every

Nixie Clock bill of materials (BOM)

34 components, 14 distinct parts — part numbers from the project's BOM.

QtyPartRefs
5
K155ID1
U1, U3, U5, U10, U12
4
IN-14
U2, U4, U11, U13
1
IN-3
U6
1
L7812CV
U7
1
PS_V2H
U8
1
NJM78M05FA‎
U9
1
DS3231
U14
1
Arduino_Nano_Every
A1
7
100NF
100nF
C1, C2, C3, C4, C6, C7, C10
2
0.33UF
0.33uF
C5, C8
1
10UF
10uF
C9
7
10K
10k
R1, R2, R4, R5, R6, R8, R9
1
100K
100k
R3
1
5K1
5k1
R7

Nixie Clock design files

The KiCad project lives in the haXoru5/nixie_clock repository on GitHub; these links point at the commit this page was built from.

Nixie Clock: common questions

What microcontroller does the Nixie Clock use?

The Nixie Clock is built around the Arduino_Nano_Every, from the AVR/Arduino family.

How big is the Nixie Clock PCB?

The Nixie Clock measures 140 × 60 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Nixie Clock?

34 components, from 14 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Nixie Clock design files?

From the haXoru5/nixie_clock repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Nixie Clock design in my own project?

The repository has no license, so all rights stay with haXoru5. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Nixie Clock without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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