2 layers110 × 50 mm
2 layers110 × 50 mm
Nixie clock back
iley/nixie-clockYet another nixie tube clock
- Size
- 110 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 22
- Nets
- 31
- Pads
- 96
- Tracks, vias
- 146, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 19 Oct 2019
- Updated
- 9 Mar 2026
Overview
Nixie clock back is an open-source printed circuit board by iley, from the iley/nixie-clock repository on GitHub, published under the MIT licence. It is a 2-layer board of 110 × 50 mm with 22 parts on 31 nets, routed with 146 tracks and 0 vias.
It is built around the ATMEGA328P-PU, DS1307Z+ and CR2032. Its parts include 4 connectors, 3 capacitors, 3 resistors, 2 ICs and 2 switches. It belongs with the lEDs and displays boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
3
ATMEGA328P-PU
DIP-28-300mil-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH DIP-28-300mil Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
DS1307Z+
SO-80℃~+70℃ 10nA 300nA 4.5V~5.5V Backup power management and battery charging、InsideSRAM/NVRAM、Programmable clock output External I2C SO-8 Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time Clocks
CR2032
-- Unclassified goods ROHSMaxellUncategorised
README
README.mdYet another nixie clock
This repo contains hardware design files and firmware source code for a nixie tube clock.
The clock uses soviet IN-12 tubes and K155ID1 driver ICs.
Parts
22| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 0.1uF | Capacitor_THT:C_Disc_D3.8mm_W2.6mm_P2.50mm | C1, C2, C3 |
| 2 | 2.2K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R3 |
| 2 | Conn_01x10_Male | Connector_PinSocket_2.54mm:PinSocket_1x10_P2.54mm_Vertical | J1, J2 |
| 1 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 32768Hz | Crystal:Crystal_C38-LF_D3.0mm_L8.0mm_Horizontal | Y1 |
| 1 | 5V_IN | nixie_clock:Terminal_Block_KF301-5.0-2P | J4 |
| 1 | ATmega328P-PU | Package_DIP:DIP-28_W7.62mm | U1 |
| 1 | BTN1 | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | SW2 |
| 1 | BTN2 | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | SW1 |
| 1 | CR2032 | Battery:BatteryHolder_Keystone_103_1x20mm | BT1 |
| 1 | DS1307 | Package_DIP:DIP-8_W7.62mm | U2 |
| 1 | ICSP | nixie_clock:Atmel_ISP_Socket_10pin | J3 |
The 16 most common of 22 parts.
Questions
How big is the Nixie clock back PCB?
It measures 110 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Nixie clock back use?
22 parts, built around the ATMEGA328P-PU, DS1307Z+ and CR2032. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Nixie clock back KiCad files?
From the iley/nixie-clock repository on GitHub, at the commit this page was made from: the board is pcb/back/nixie_clock_back.kicad_pcb and its schematic pcb/back/nixie_clock_back.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Nixie clock back design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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