SKU: SENS-0914
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Seeed Studio Studio Grove Multichannel Gas Sensor v2 - GM-102B/302B/502B/702B MEMS Sensors w/ STM32F030 & I2C Interface

₹3,569.00 (Inclusive of all taxes)
Out of Stock

The Seeed Studio Studio Grove Multichannel Gas Sensor v2 is a compact MEMS-based module featuring four independent gas sensing elements (GM-102B, GM-302B, GM-502B, GM-702B) for qualitative detection of CO, NO2, VOCs, and alcohol. It integrates an STM32F030 MCU and communicates via a Grove I2C interface (address 0x55), making it compatible with 3.3V/5V Arduino, Raspberry Pi, and other microcontroller platforms.

Features

  • Four independent MEMS gas sensing elements (GM-102B, GM-302B, GM-502B, GM-702B) on a single package.
  • Qualitative detection of multiple gases including CO, NO2, VOCs, and Ethyl Alcohol.
  • Integrated STM32F030 microcontroller for onboard signal processing and data management.
  • Standard Grove I2C interface (address 0x55) for easy plug-and-play connectivity.
  • Wide 3.3V to 5V operating voltage range for broad microcontroller compatibility.

Out of stock

Description

The Grove Multichannel Gas Sensor v2 employs advanced MEMS (Micro-Electro-Mechanical Systems) technology to house four distinct gas-sensitive elements within a single, compact module. Each sensor element is tuned to respond to different gas types, enabling the module to provide a qualitative profile of the ambient air composition rather than precise quantitative concentrations. This makes it ideal for applications requiring gas presence detection, pattern recognition, or relative air quality assessment.

The onboard STM32F030 microcontroller handles sensor signal conditioning, data acquisition, and I2C communication, simplifying integration with host systems like Arduino, Raspberry Pi, ESP32, or other development boards. The module’s design prioritizes measurement stability and repeatability in a small form factor, suitable for deployment in portable devices, environmental monitoring stations, and smart home systems.

Key Features

  • Quad-channel MEMS gas sensor array for multi-gas qualitative analysis.
  • Onboard STM32F030 MCU provides robust signal processing and I2C protocol management.
  • Grove standardized I2C connector ensures quick, solderless prototyping and system integration.
  • Wide 3.3V to 5V DC input range supports compatibility with both 3.3V and 5V logic systems.
  • Compact PCB footprint and low-profile design optimized for space-constrained applications.
  • Provides a stable qualitative output suitable for trend analysis and presence detection.
  • Includes a JST-to-Grove cable for immediate connection to Grove ecosystem base shields.

Applications

  • Indoor air quality (IAQ) monitoring and profiling in smart home or office environments.
  • Qualitative leak detection and ambient gas presence sensing in DIY safety projects.
  • Integration into portable environmental data loggers and wearable devices.
  • Educational platforms for demonstrating multi-sensor data fusion and gas detection principles.
  • Prototyping systems for HVAC control, automotive cabin air monitoring, or industrial safety.

Technical Specifications

Item TypeGas Sensor Module
MCU TypeSTM32F030
InterfaceGrove I2C Interface
I2C Address0x55
Output Voltage3.3V ~ 5V DC
SensorsGM-102B, GM-302B, GM-502B, GM-702B
Measurement TypeQualitative Detection
Target GasesCO, NO2, VOCs, Ethyl Alcohol (C2H5OH)
TechnologyMEMS

Frequently Asked Questions

What is the operating voltage range for the Grove Multichannel Gas Sensor v2?

The module operates from 3.3V to 5V DC. You can power it directly from the 5V or 3.3V pin of most development boards like Arduino or Raspberry Pi via the Grove connector, ensuring compatibility with both logic levels.

How do I communicate with this sensor, and what is its I2C address?

Communication is via the standard Grove I2C interface. The module has a fixed I2C address of 0x55 (hexadecimal). Use standard I2C libraries to read the four channels of qualitative data from the onboard STM32F030 microcontroller.

Can this sensor provide precise concentration values for specific gases?

No, this module is designed for qualitative detection, not quantitative measurement. It provides relative resistance changes from its four MEMS sensor elements, which can be used to detect the presence or profile of gases like CO, NO2, VOCs, and alcohol, but not their exact ppm concentrations.

What is included in the package, and do I need any additional cables?

The package includes the Grove Multichannel Gas Sensor v2 module and one JST-to-Grove 4-pin cable. This cable allows you to connect the module directly to any Grove base shield or board with a Grove I2C port. No additional cables are required for basic operation.

Package Includes

  • 1 x Seeed Studio Studio Grove Multichannel Gas Sensor v2 Module
  • 1 x JST to Grove 4-pin Cable

Additional Information

Weight 0.01 kg
Dimensions 13 × 8 × 1 cm