# SDM-SIO1 Serial I/O Module

**URL:** <https://forum.fritzing.org/t/sdm-sio1-serial-i-o-module/34573>\
**Category:** parts submit\
**Created:** [October 7, 2026, 12:33pm UTC](https://forum.fritzing.org/t/sdm-sio1-serial-i-o-module/34573 "2026-10-07T12:33:53Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![PhilemonPrevot](https://forum.fritzing.org/letter_avatar_proxy/v4/letter/p/5e9695/32.png) [@PhilemonPrevot](https://forum.fritzing.org/u/PhilemonPrevot)\
**Post date:** [October 7, 2026, 12:33pm UTC](https://forum.fritzing.org/t/sdm-sio1-serial-i-o-module/34573/1 "2026-10-07T12:33:53Z")

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Hello Fritzing community!

I am very new to Fritzing and working on a project needing of lots of parts that I didn’t find here. So I took on the task of creating the parts myself.  
Here is the first one : the SDM-SIO1 by Campbell Scientific.

[SDM-SIO1.fzpz](https://forum.fritzing.org/uploads/short-url/hf6Wk52ZdstjWtdklGWGHOY8wXZ.fzpz) (31.9 KB)

I am also using the Campbell CR-1000 made by Tyler1456 ([Campbell Scientific CR-1000 Fritzing Part](https://forum.fritzing.org/t/campbell-scientific-cr-1000-fritzing-part/13817)) but I need the schematics view and the [G;+12V] power pins. I know how to add pins however I have absolutely no idea how to correctly represent the CR-1000 and its three rows of pins of different sizes in schematic view.

[Campbell Scientific CR-1000.fzpz](https://forum.fritzing.org/uploads/short-url/7qonbrvCISCJQ9m47QT9UM1honm.fzpz) (136.8 KB)

I would be very gratefull if some of you could give me insight and feedback on the SDM, and if someone has the knowledge to modify the CR-1000 too.

Have a good Fritz!