Mrmoddom: MuHack SAO 10th anniversary project page

2025-05-07T12:23:06Z

MuHack SAO 10th anniversary project page

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{{Project
|Picture=MuHack-SAO-10th-all-colors.jpg
|Project Status=Finished
|Participants=Mrmoddom
}}
== MuHack SAO 10th anniversary ==

For the 10th anniversary of the MuHack hackerspace, I made a little SAO that can also be pinned to your shirt or backpack, working off a button battery.

=== Features ===
* Two configurations: SAO and pin
* Two LEDs mounted on a transparent part of the PCB
* I²C interface for connecting a small SPI flash memory
* Gold-plated for a neat design
* Clasp butterfly pin

== Getting Started ==
This PCB is designed to be used in two different configurations: as a pin or as a SAO.

The pin configuration is the simplest, with only two LEDs and a switch to turn them on and off, everything powered by a CR1220 battery.

There is also a solderable footprint for a clasp butterfly pin, so you can wear it on your shirt or backpack.

=== BOM for PIN configuration ===
* 2 × 0805 LEDs
* 1 × CR1220 battery holder (e.g. Keystone 3002)
* 1 × CR1220 battery
* 1 × 0805 1 kΩ resistor
* 1 × switch for on/off (e.g. C&K PCM12SMTR)

=== BOM for SAO configuration ===
* 2 × 0805 10 kΩ resistors
* 1 × SPI SOIC-8 flash memory (e.g. Winbond W25Q32JVSSIM)
* (Optional) Everything listed in the PIN configuration BOM except the battery and holder

:''Do not use the SAO configuration with the battery inserted, as it may damage the circuit or the connected badge!''

== Links ==

All the files for this project are available on the [https://github.com/mrmoddom/MuHack-SAO-10th GitHub Repo].

== License ==
This work is licensed under [https://creativecommons.org/licenses/by/4.0/ CC BY 4.0] by the author.

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Mrmoddom: MuHack SAO 10th anniversary project page