Face
About the Face PCB
Face is an open source PCB design by jason-watkins, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 140 × 70 mm, with 13 components from 7 distinct parts.
By type, the board carries 6 resistors, 3 capacitors and 2 connectors.
It belongs with the displays & leds and power & battery designs in this gallery.
From the project
USB-C powered nixie tube clock. Four IN-12B digits, two INS-1 colon lamps, K155ID1 BCD decoder/drivers.
USB-C powered nixie tube clock. Four IN-12B digits, two INS-1 colon lamps, K155ID1 BCD decoder/drivers.
USB-PD negotiates 5-12V supply and feeds it into 3 converters:
- Flyback boost: 170V for the tube anodes - 3.3V buck boost for the MCU. Boost exists to make sure a 3.3V FTDI type UART adapter provides the full 3.3V to the rail. - 5V buck for the BCD drivers, bypassed if the source itself is 5V
Face bill of materials (BOM)
13 components, 7 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 26 pin IDC | IDC-Header_2x13_P2.54mm_Vertical | J1 |
| 1 | Phoenix MSTB | PhoenixContact_MSTBVA_2,5_3-G-5,08_1x03_P5.08mm_Vertical | J2 |
| 2 | INS-1 | INS-1_Recessed | NX5, NX6 |
| 2 | 100nF | C_Rect_L5.1mm_W3.2mm_P2.54mm_Goldmax | C1, C2 |
| 1 | 10uF | CP_Radial_D5.0mm_P2.00mm | C3 |
| 4 | 7.5k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3, R4 |
| 2 | 240k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5, R6 |
Face design files
The KiCad project lives in the jason-watkins/nixie-clock repository on GitHub; these links point at the commit this page was built from.
- Layoutpcb/face/face.kicad_pcb
- Schematicpcb/face/face.kicad_sch
Face: common questions
How big is the Face PCB?
The Face measures 140 × 70 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Face?
13 components, from 7 distinct parts. The full bill of materials is listed on this page.
Where can I download the Face design files?
From the jason-watkins/nixie-clock repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Face design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which jason-watkins chose for the repository.
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