SparkFun SCD4x Arduino Library


Library for the Sensirion SCD4x family of CO2 Sensors (SCD40 and SCD41)
An Arduino library for the SCD4x family of CO2 sensors from Sensirion. The SCD41 is a high quality photoacoustic CO₂ sensor capable of detecting 400 to 5000ppm with an accuracy of ±(40ppm+5%). On-chip signal compensation is realized with the built-in SHT4x humidity and temperature sensor. Get the SCD40 here.

Author: SparkFun Electronics

Maintainer: SparkFun Electronics

Read the documentation


This library is compatible with all architectures so you should be able to use it on all the Arduino boards.


To use this library, open the Library Manager in the Arduino IDE and install it from there.