SKU: SENS-3492
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Bosch BME680 4-in-1 Environmental Sensor Module - Temperature, Humidity, Pressure, Gas (VOC), I²C/SPI

₹1,089.00 (Inclusive of all taxes)
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The Bosch BME680 is a compact 4-in-1 environmental sensor module integrating MEMS-based sensing for temperature, humidity, barometric pressure, and volatile organic compound (VOC) gas detection. It features selectable I²C and SPI digital interfaces for seamless integration with microcontrollers like Arduino, Raspberry Pi, ESP32, and STM32, providing direct IAQ (Indoor Air Quality) index output.

Features

  • Integrated MEMS sensor for temperature, humidity, pressure, and VOC gas sensing.
  • Selectable I²C and SPI digital communication interfaces for flexible system integration.
  • Ultra-low power consumption, drawing less than 0.1 mA in low-power mode.
  • Compact 3.0 x 3.0 x 0.93 mm LGA package for space-constrained designs.
  • Provides direct IAQ (Indoor Air Quality) index output for simplified air quality monitoring.

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Description

The Bosch BME680 is a highly integrated environmental sensor combining four distinct sensing elements into a single MEMS package. It utilizes a metal-oxide (MOX) gas sensor for detecting a broad range of volatile organic compounds (VOCs), a piezoresistive pressure sensor, and capacitive sensing elements for humidity and temperature. This multi-sensor fusion enables comprehensive environmental monitoring from a single, compact device.

Designed for low-power mobile and wearable applications, the BME680 features advanced signal conditioning and digital compensation algorithms onboard. It outputs calibrated digital data via I²C or SPI, simplifying integration into IoT nodes, smart home devices, and portable instrumentation. Its fast response time and high accuracy make it suitable for dynamic environmental monitoring applications.

Key Features

  • Integrated 4-in-1 MEMS sensor for gas (VOC), pressure, humidity, and temperature.
  • High-accuracy pressure sensing with ±0.12 hPa typical accuracy.
  • Ultra-low power operation optimized for battery-powered IoT and wearable devices.
  • Compact 3.0 x 3.0 x 0.93 mm LGA package with a small PCB footprint.
  • Dual digital interface support (I²C up to 3.4 MHz, SPI up to 10 MHz).
  • On-chip signal processing and temperature compensation for stable readings.
  • Direct output of an Indoor Air Quality (IAQ) index for simplified application design.
  • RoHS compliant construction for environmentally conscious designs.

Applications

  • Indoor Air Quality (IAQ) monitoring in smart home and building automation systems.
  • Environmental sensing for portable IoT devices, wearables, and health monitors.
  • Altitude tracking and weather station data logging for outdoor sports and fitness devices.
  • HVAC system control and demand-controlled ventilation based on VOC levels.
  • Mobile device integration for context-aware applications and personal environmental tracking.

Technical Specifications

Manufacturer Part NumberBME680
Sensor Type4-in-1 Environmental (Gas, Pressure, Humidity, Temperature)
Gas Sensing PrincipleMetal-Oxide (MOX)
Pressure Range300 hPa to 1100 hPa
Pressure Accuracy±0.12 hPa (typical)
Humidity Range0% to 100% RH
Temperature Range-40°C to +85°C
Supply Voltage1.7 V to 3.6 V
Communication InterfaceI²C, SPI
Average Current Consumption< 0.1 mA (low power mode)
Package Type8-pin LGA
Package Dimensions (L x W x H)3.0 mm x 3.0 mm x 0.93 mm
Operating Temperature-40°C to +85°C

Frequently Asked Questions

What is the supply voltage range for the Bosch BME680 sensor?

The Bosch BME680 operates from a supply voltage (VDD) range of 1.7V to 3.6V. It is compatible with common 3.3V microcontroller logic levels. Care must be taken not to exceed the absolute maximum rating of 3.8V to prevent damage to the integrated circuitry.

How do I communicate with the BME680 using I²C or SPI?

The BME680 supports both I²C (up to 3.4 MHz) and SPI (up to 10 MHz) digital interfaces. The interface is selected by controlling the CSB (Chip Select) pin. For I²C mode, pull the CSB pin high; for SPI mode, connect it to your microcontroller's chip select line. The sensor's I²C address is 0x76 or 0x77, selectable via the SDO pin.

What does the BME680 measure for 'gas', and how is IAQ calculated?

The BME680's gas sensor detects a broad range of volatile organic compounds (VOCs) like ethanol, carbon monoxide, and other reducing gases via a metal-oxide (MOX) element. The sensor's integrated ASIC processes the raw gas resistance signal along with concurrent humidity and temperature data to calculate a proprietary Indoor Air Quality (IAQ) index, providing a simplified 0-500 scale output for air quality assessment.

What is the typical response time for gas measurements?

The BME680 offers a fast gas sensor response time of less than 1 second for detecting changes in VOC concentrations. For humidity measurements, the response time is approximately 8 seconds. Optimal accuracy for all parameters requires allowing sufficient stabilization time after power-up, especially for the gas sensor heater element.

Package Includes

  • 1 x Bosch BME680 Sensor Module

Additional Information

Weight 0.002 kg
Dimensions 0.3 × 0.3 × 0.093 cm