Introduction
The SparkFun Indoor Air Quality Sensor - SCD41 SEN55 (Qwiic) combines two excellent indoor air quality sensors in the SCD41 and SEN55 from Sensirion™ to provide a comprehensive indoor air quality sensor that measures CO2, Volatile Organic Compounds (VOCs), particulate matter (PM1.0, 2.5, 4, and 10) along with temperature and relative humidity.
Required Materials
To follow along with this guide you will need a microcontroller to communicate with the Air Quality Combo Board. Below are a few options that come Qwiic-enabled out of the box:
If your chosen microcontroller is not already Qwiic-enabled, you can add that functionality with one or more of the following items:
You will also need at least one Qwiic cable to connect the air quality sensor board to your microcontroller:
Optional Materials
If you prefer a soldered connection or want to modify the solder jumpers on this board, you may need some of the products listed below:
Suggested Reading
We designed this board for easy integration into SparkFun's Qwiic connect system. Click on the banner below to learn more about the SparkFun Qwiic Connect System.
Before getting started with this Hookup Guide, you may want to read through the tutorials below if you are not familiar with the concepts covered in them or want a refresher. If you are using either of the Qwiic Shields linked above, we recommend reading through their respective Hookup Guides before continuing with this tutorial:
