HardLabs

Nixie control board

shengwen-tw·nixie-clock·circuit/redesigned_ver2/control_board/nixie_control_board.kicad_pcb

Nixie control board layout, top view — open source AVR/Arduino board by shengwen-tw

About the Nixie control board

Nixie control board is an open source AVR/Arduino PCB design by shengwen-tw, published on GitHub under the MIT license. It is a 2-layer board measuring 183.8 × 59.4 mm, with 61 components from 43 distinct parts.

Its main chip is the ATMEGA328P-A, from the AVR/Arduino family. Other key parts include the MC34063A, TLP521, HEF4028, K155ID1 and DS1307. By type, the board carries 19 resistors, 12 ICs, 11 capacitors, 6 connectors, 4 transistors and 2 crystals.

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

From the project

IN-14 Russian nixie tube clock

A Russian IN-14 Nixie tube clock which support time display, alram and mp3 playing function

You must install the following arduino libraries before compiling the firmware (find the zip in firmware directory)

DFPlayer driver (a modified version of AltSoftwareSerial) RTC and Time library

The hardware was designed under Kicad 4, any previous version may not work properly.

Nixie control board, from the project README
From the project README

Main components on the Nixie control board

ATMEGA328P-AMC34063ATLP521HEF4028K155ID1DS1307DFPlayerLM7808CTSMD_7805

Nixie control board bill of materials (BOM)

61 components, 43 distinct parts.

QtyPartRefs
1
ATMEGA328P-A
IC1
1
MC34063A
U2
4
TLP521
U3, U4, U6, U7
1
HEF4028
U5
1
K155ID1
U8
1
DS1307
U9
1
DFPlayer
U18
1
LM7808CT
U19
1
SMD_7805
U20
1
2SB647
Q1
1
2SK2611
Q2
2
Q_NPN_EBC
Q3, Q4
1
16MHZ
Y1
1
32.768khz
Y2
1
BARREL_JACK
CON1
1
CONN_01X08
P1
1
CONN_02X03
P2
1
CONN_01X12
P3
1
CONN_01X04
P4
1
BLUETOOTH_SJ
P5
Show 23 more
QtyPartRefs
1
CR1220
BT1
1
SW_PUSH
SW1
1
SPST
SW2
1
1N4148
D1
1
FR157
D2
1
220uh
L1
1
22uh
L2
1
100uf/16v
C2
3
0.1uf
C3, C5, C10
3
1000pf
C4, C11, C12
1
33v/250v
C6
1
33uf/250v
C7
2
22pf
C8, C9
2
0.5ohm
R1, R2
4
1k ohm
R3, R4, R18, R19
1
620ohm
R5
1
100k ohm
R6
1
760 ohm
R7
4
330ohm
R8, R12, R13, R14
1
18k ohm
R9
2
R
R10, R11
1
10k ohm
R15
2
4.7k ohm
R16, R17

Nixie control board design files

The KiCad project lives in the shengwen-tw/nixie-clock repository on GitHub; these links point at the commit this page was built from.

Nixie control board: common questions

What microcontroller does the Nixie control board use?

The Nixie control board is built around the ATMEGA328P-A, from the AVR/Arduino family.

How big is the Nixie control board?

The Nixie control board measures 183.8 × 59.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Nixie control board?

61 components, from 43 distinct parts. The full bill of materials is listed on this page.

Where can I download the Nixie control board design files?

From the shengwen-tw/nixie-clock repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Nixie control board design in my own project?

Yes, under the terms of its MIT license, which shengwen-tw chose for the repository.

Can I test firmware for the Nixie control board 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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