HardLabs

NixieClock

gztproject·NixieClock·PCB/NixieClock.kicad_pcb

NixieClock PCB layout, top view — open source ESP8266 board by gztproject

About the NixieClock PCB

NixieClock is an open source ESP8266 PCB design by gztproject, published on GitHub under the MIT license. It is a 2-layer board measuring 146.7 × 95.3 mm, with 46 components from 14 distinct parts.

Its main chip is the WEMOS_D1_MINI, from the ESP8266 family. Other key parts include the L7805, BME280, 74HC595 and 74141. By type, the board carries 14 resistors, 13 ICs, 4 transistors, 3 connectors and 2 capacitors.

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

From the project

Firmware for ESP8266 based nixie tube clock

Install VS Code Install PlatformIO Clone/download this repo Open with VS Code/PlatformIO Copy configoverrideexample.h to configoverride.h Edit settings in configoverride.h * Build and upload to your ESP8266

Main components on the NixieClock

L7805WEMOS_D1_MINIBME28074HC59574141

NixieClock bill of materials (BOM)

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

QtyPartRefs
1
L7805
U1
1
WEMOS_D1_MINI
WeMos_D1_mini
U2
1
BME280
U3
4
74HC595
U4, U5, U6, U7
6
74141
U9, U10, U11, U12, U13, U14
4
MPSA42
Q1, Q2, Q3, Q4
1
Barrel_Jack
J1
2
CONN_01X03_MALE
Conn_01x03_Male
J3, J4
6
IN-12A
N1, N2, N3, N4, N5, N6
4
Lamp_Neon
NE1, NE2, NE3, NE4
2
470NF
470nF
C1, C2
4
2K2
2k2
R1, R2, R13, R14
6
1.5K
R3, R4, R7, R8, R11, R12
4
180K
R5, R6, R9, R10

NixieClock design files

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

NixieClock: common questions

What microcontroller does the NixieClock use?

The NixieClock is built around the WEMOS_D1_MINI, from the ESP8266 family.

How big is the NixieClock PCB?

The NixieClock measures 146.7 × 95.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the NixieClock?

46 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 NixieClock design files?

From the gztproject/NixieClock 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 NixieClock design in my own project?

Yes, under the terms of its MIT license, which gztproject chose for the repository.

Can I test firmware for the NixieClock without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP8266 firmware against it before you order a PCB.

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