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The terrible, horrible, no good very bad Call Center Village SAO.
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Patrick Labbett 8efa1595f9 Added SAO2 footprint reference
2026-05-18 13:31:35 -04:00
pcbway_production/2026-05-17-15-05-33 initial commit 2026-05-17 19:43:42 -04:00
production initial commit 2026-05-17 19:43:42 -04:00
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booth outline.svg initial commit 2026-05-17 19:43:42 -04:00
Call Center Village SAO.kicad_pcb initial commit 2026-05-17 19:43:42 -04:00
Call Center Village SAO.kicad_pro initial commit 2026-05-17 19:43:42 -04:00
Call Center Village SAO.kicad_sch initial commit 2026-05-17 19:43:42 -04:00
fabrication-toolkit-options.json initial commit 2026-05-17 19:43:42 -04:00
LICENSE initial commit 2026-05-17 19:43:42 -04:00
phone_booth.svg initial commit 2026-05-17 19:43:42 -04:00
README.md Added SAO2 footprint reference 2026-05-18 13:31:35 -04:00
SAOv2.kicad_sym initial commit 2026-05-17 19:43:42 -04:00

README.md

Call Center Village SAO

First attempt at an SAO (Shitty/Standard Add-On) for Call Center Village.

A small phone-booth–shaped PCB add-on that plugs into any SAO v2 header on an electronic badge.

What it is

This is a minimal, power-only SAO: a single LED with a current-limiting resistor, powered straight from the host badge's SAO connector. There is no microcontroller and no I2C — the SDA, SCL, GPIO1 and GPIO2 pins on the connector are left unconnected. Plug it into a badge and the LED lights up.

The board outline is shaped like a british-style phone booth.

Specifications

  • Standard: SAO v2 — 6-pin 2×3 1.27 mm header (VCC, GND, SDA, SCL, GPIO1, GPIO2)
  • Power: VCC supplied by the host badge (SAO v2 is nominally 3.3 V)
  • Designed in: KiCad 10

Bill of materials

Designator Part Footprint Notes
D1 LED 1206 SMD Indicator LED (LCSC C49018)
R1 330 Ω resistor 0805 SMD LED current limiting (LCSC C17630)
X1 SAO v2 connector 2×3 1.27 mm header Connects to the host badge

D1 and R1 are wired in series between the connector's VCC and GND pins.

SAO Connector

KiCad footprint for SAO connector:

https://hackaday.io/project/175182-simple-add-ons-sao Direct Link

Repository contents

Path Description
Call Center Village SAO.kicad_pro / .kicad_sch / .kicad_pcb KiCad project, schematic, and PCB layout
SAOv2.kicad_sym SAO v2 connector schematic symbol
booth outline.svg, phone_booth.svg Phone-booth artwork / board outline
production/ Fabrication outputs — BOM, pick-and-place, netlist, gerber zip
pcbway_production/ PCBWay-specific fabrication package
fabrication-toolkit-options.json KiCad Fabrication Toolkit export settings

Building / ordering

The production files were exported with the KiCad Fabrication Toolkit plugin.

To order boards:

  1. Open the project in KiCad 10 or later to inspect or modify the design.
  2. Send a fabrication package to your board house:
    • pcbway_production/ — ready for PCBWay
    • production/Call_Center_Village_SAO.zip — generic gerber package
  3. The assembly BOM with LCSC part numbers is in production/bom.csv, and component placement is in production/positions.csv.

License

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License (CC BY-SA 4.0). See LICENSE for the full text.

You are free to share and adapt this design, including for commercial purposes, as long as you give appropriate credit and license your derivatives under the same terms.