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2 layers32 × 10 mmSeparator, the printed circuit board in 3D

ESP32-S3 -based IV-22 desk clock

Size
32 × 10 mm
Copper layers
2
Thickness
1.6 mm
Parts
10
Nets
7
Pads
29
Tracks, vias
41, 15
Pours
1
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
23 May 2025
Updated
25 Sep 2025

Overview

Separator is an open-source printed circuit board by GraniteGobbler, from the GraniteGobbler/VFDClock repository on GitHub. It is a 2-layer board of 32 × 10 mm with 10 parts on 7 nets, routed with 41 tracks and 15 vias.

It is built around the BSS138. Its parts include 2 capacitors, 2 resistors, 2 diodes, 1 transistor and 1 connector.

Main components

1

README

README.md

VFDClock

A table clock with 7-segment VFD tubes running on an ESP32-S3 MCU.

Front Render

Showcase

Board Assembly

Parts

10
QtyValueFootprintReferences
2100nCapacitor_SMD:C_0805_2012MetricC1, C2
210kResistor_SMD:R_0805_2012MetricR1, R2
2Inolux_IN-PI554FCHLED_SMD:LED_Inolux_IN-PI554FCH_PLCC4_5.0x5.0mm_P3.2mmD1, D2
2MountingHole_PadMountingHole:MountingHole_3.2mm_M3_ISO14580_Pad_TopBottomH1, H2
1BSS138Package_TO_SOT_SMD:SOT-23Q1
1COL_CONNConnector_PinHeader_2.00mm:PinHeader_2x02_P2.00mm_VerticalJ1

Questions

How big is the Separator PCB?

It measures 32 × 10 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Separator use?

10 parts, built around the BSS138. 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 Separator KiCad files?

From the GraniteGobbler/VFDClock repository on GitHub, at the commit this page was made from: the board is separator_pcb/Separator.kicad_pcb and its schematic module_pcb/Module.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Separator design in my own project?

Its repository states no licence, so its author keeps all rights: ask GraniteGobbler before reusing the design.

More from GraniteGobbler/VFDClock

2
  • 4 layers80 × 52.7 mmVFDClock, the printed circuit board in 3D

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    GraniteGobbler/VFDClock

    ESP32-S3 -based IV-22 desk clock

    84 parts
  • 2 layers44.4 × 52.7 mmModule, the printed circuit board in 3D

    Module

    GraniteGobbler/VFDClock

    ESP32-S3 -based IV-22 desk clock

    28 parts

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