Disconnected CO2 Data Logger

Monitor air quality on the go

by Liz Clark

published October 27, 2021, last edited May 13, 2025

posted in Sensors Feather STEMMA

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35

Beginner

Project guide

3D Printing

The enclosure is a 3D printed, snap fit case that prints with no supports.

It consists of three parts:

co2_topLid
co2_botLid
co2_mainBox

The files can be downloaded directly here or through Thingiverse.

The top and bottom lids are removable to allow for easy access to the SD card and electronics.

disconnectedCo2DataLogger_STLfiles.zip

STL files on Thingiverse

The case has mounting holes for the FeatherWing Doubler and the SCD-40 STEMMA sensor.

There are cutouts for the on/off switch and the Feather RP2040's USB-C port so that you can charge the LiPoly battery or update the code.

Page last edited March 08, 2024

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