HardLabs

Nixie-2.1

jhrg·nixie-2·PCB/nixie-2.1/nixie-2.1.kicad_pcb

Nixie-2.1 PCB layout, top view — open source AVR/Arduino board by jhrg

About the Nixie-2.1 PCB

Nixie-2.1 is an open source AVR/Arduino PCB design by jhrg, published on GitHub. It is a 2-layer board measuring 167.1 × 142.8 mm, with 79 components from 32 distinct parts.

Its main chip is the Arduino_Nano_v3.x, from the AVR/Arduino family. Other key parts include the LM317_TO-220, 74141, Z573M_Board and BMP180_breakout. By type, the board carries 41 resistors, 14 transistors, 9 ICs, 6 capacitors, 2 switches and 1 module.

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

From the project

Z573M-tube is a breakout board for the Z57xM nixie tubes.

Z573M-tube is a breakout board for the Z57xM nixie tubes.

breakout-boards are KiCAD footprints for the Adafruit DS3231, BMP-180/280 and the exixe IN-14N nixie tube board.

nixies-2.1 has the KiCAD design files for the nixie-2.1 board

nixie-footprints.pretty holds a number of KiCAD footprints for the nixie-2.1 PCB.

nixie-tube-clock-2.1.kicad_sym holds (most of) the symbols used by the nixies-2.1 board.

Main components on the Nixie-2.1

LM317_TO-22074141Z573M_BoardBMP180_breakoutArduino_Nano_v3.x

Nixie-2.1 bill of materials (BOM)

79 components, 32 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LM317_TO-220
U1
1
74141
U3
6
Z573M_Board
U4, U5, U6, U7, U8, U9
1
BMP180_breakout
U10
1
Arduino_Nano_v3.x
A1
1
IRF730 TO220-3
Q1
1
ZTX857
MPSA92
Q2
5
MPSA92
Q3, Q4, Q8, Q9, Q10
7
MPSA42
Q5, Q6, Q7, Q11, Q12, Q13, Q14
1
Barrel_Jack_Switch
J1
1
MUR160G
CR1
2
Heatsink
HS1, HS2
2
SW_Push
SW1, SW2
1
1N5819
1N4002
D1
1
200uH 1A 450m
L1
3
0.1uF 50V
C1, C5, C6
1
1.0uF 160V
C2
1
10uF 400V
C3
1
470uF 25V
C4
1
220
R1
Show 12 more
QtyPartRefs
2
330
R2, R3
1
220
390K
R4
1
390K
1M
R5
1
10K_TRIMMER
10K_Trimmer
R6
1
390K
10K
R7
13
10K
R8, R9, R16, R17, R18, R22, R23, R24 +5
6
1M
R10, R11, R12, R25, R26, R27
6
3.3K
R13, R14, R15, R28, R29, R30
6
220K
R19, R20, R21, R34, R35, R36
1
12K
R39
1
R_Photo
R40
1
390K
R41

Nixie-2.1 design files

The KiCad project lives in the jhrg/nixie-2 repository on GitHub; these links point at the commit this page was built from.

Nixie-2.1: common questions

What microcontroller does the Nixie-2.1 use?

The Nixie-2.1 is built around the Arduino_Nano_v3.x, from the AVR/Arduino family.

How big is the Nixie-2.1 PCB?

The Nixie-2.1 measures 167.1 × 142.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Nixie-2.1?

79 components, from 32 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-2.1 design files?

From the jhrg/nixie-2 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Nixie-2.1 design in my own project?

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

Can I test firmware for the Nixie-2.1 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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