SparkFun CO₂ Humidity and Temperature Sensor - SCD4x (Qwiic)

SparkFun CO₂ Humidity and Temperature Sensor - SCD40 (Qwiic)	SparkFun CO₂ Humidity and Temperature Sensor - SCD41 (Qwiic)

The SparkFun CO₂ Humidity and Temperature Sensor - SCD4x (Qwiic) features the SCD40 and SCD41 CO₂ sensors from Sensirion^©. The SCD4x sensors use Sensirion's PASens^® photoacoustic measurement system that combines narrow-band IR light and a microphone inside the sensing package capable of detecting concentrations from 0 to 40000 ppm with high accuracy. The SCD40 has best accuracy over 400-2000 ppm ±(50 ppm+5%) and the SCD41 has best accuracy over 400-5000 ppm ±(40 ppm+5%). The SCD4x have an integrated temperature and humidity CMos^® sensor to improve accuracy. For additional accuracy the SCD4x also accept ambient pressure readings!

Repository Contents

• /Documentation - Data sheets, additional product information
• /Hardware - Eagle design files (.brd, .sch)
• /Production - Production panel files (.brd)
• /docs - Online documentation files

Documentation

• SparkFun SCD4x CO₂ Sensor Arduino Library - Arduino library for the SparkFun CO₂ Humidity and Temperature Sensor - SCD4x (Qwiic).
• Hookup Guide - Basic hookup guide for the SparkFun Qwiic CO₂ Sensor - SCD4x.
• SparkFun Fritzing repo - Fritzing diagrams for SparkFun products.

Product Versions

• SEN-22935 - Qwiic CO₂ Sensor - SCD40
• SEN-22396 - Qwiic CO₂ Sensor - SCD41

Version History

• SCD40 v10 - Initial SparkFun release (SCD40)
• SCD41 v10 - Initial SparkFun release (SCD41)
• SparkX SCD40 v01 - Initial SparkX release (SCD40)
• SparkX SCD41 v01 - Initial SparkX release (SCD41)

License Information

This product is open source!

Please review the LICENSE.md file for license information.

If you have any questions or concerns on licensing, please contact technical support on our SparkFun forums.

Distributed as-is; no warranty is given.

• Your friends at SparkFun.