SparkX CO2 Sensor - STC31 (Qwiic) (SPX-18385)
Do you need to be able to sense CO2 concentrations of up to 100%? If so, the STC31 is the sensor for you! The Sensirion STC31 thermal conductivity sensor has two CO2 measurement ranges: 0 to 25 vol%; and 0 to 100 vol%. The measurement repeatability is 0.2 vol%, with a stability of 0.025 vol% / °C. The measurement accuracy depends on the measurement range: 0.5 vol% + 3% measured value; 1 vol% + 3% measured value.
Our breakout includes a separate SHTC3 humidity and temperature sensor; allowing the STC31 to deliver humidity-compensated measurements together with improved temperature compensation. The STC31 can compensate for atmospheric pressure too - which is handy if, like us, you’re up in the mountains!
The STC3x sensor family is Sensirion’s series of Gas Concentration sensors designed for high-volume applications. The STC3x utilizes a revolutionized thermal conductivity measurement principle, which results in superior repeatability and long-term stability. This makes the STC31 a perfect choice for applications where reliability is key.
The outstanding performance of these sensors is based on Sensirion’s patented CMOSens® sensor technology, which combines the sensor element, signal processing and digital calibration on a small CMOS chip. The well-proven CMOS technology is perfectly suited for high-quality mass production and is the ideal choice for demanding and cost-sensitive OEM applications.
- /Documents - datasheets etc.
- /Hardware - Eagle design files (.brd, .sch)
- LICENSE.md contains the licence information
- STC3x Arduino Library - Arduino library for the SparkX CO2 Sensor - STC31.
- Hookup Guide - Basic hookup guide for the SparkX CO2 Sensor - STC31.
- SPX-18385 - Original SparkX Release.
This product is open source!
Please review the LICENSE.md file for license information.
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Distributed as-is; no warranty is given.
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