Read the Grove SGP30 at one-second intervals, understand estimated CO2, and plan humidity compensation and baseline handling.
Technical setup notes
- SGP30 metal-oxide gas sensor module with TVOC (ppb) and CO2-equivalent/eCO2 (ppm) outputs over I2C. eCO2 is an estimate, not a direct CO2 measurement.
- Grove module supply: 3.3 V / 5 V. Use 3.3 V supply and bus levels with ESP32; bare-chip voltage is not the Grove connector supply requirement.
- Default I2C address: 0x58. The IAQ algorithm requires regular one-second measurements and an initialization period.
- For direct CO2 sensing, see our SCD40 / SCD41 guide.
Features
Outstanding stability: Metal-oxide gas sensing with TVOC and CO2-equivalent outputs; not an NDIR CO2 measurement
High-performance gas sensor: Sensirion SGP30, a multi-pixel gas sensor for indoor air quality applications
Low power consumption: Chip-level current/voltage figures are distinct from the Grove module input; use the module supply specification above
High measurement accuracy: Using dynamic baseline compensation algorithm and on-chip calibration parameters
Grove unified socket: The sensor ensures "Plug and Play" and could be versatile for various applications.
Description
The Sensirion SGP30 is a digital multi-pixel gas sensor that can easily integrate with air purifiers, demand-controlled ventilation, and other IoT applications. Powered by Sensirion’s CMOSens®technology, it integrates a complete sensor system on a single chip featuring a digital I2C interface, a temperature-controlled micro hotplate, and two preprocessed indoor air quality signals. As the first metal-oxide gas sensor featuring multiple sensing elements on one chip, the SGP30 provides more detailed information about air quality.
We have developed more than 400 Grove modules, covering a wide range of applications that can fulfil various needs. Click to explore the Grove Sensor family and get started to Grove your Idea. For all Grove users (especially beginners), we provide you with guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your use of the product.
Hardware Overview
Part List
Grove - VOC and eCO2 Gas Sensor (SGP30)
Grove cable
