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BME680 Environmental Temperature Humidity Pressure & Gas Sensor Sensor Module

₹1,599.00 ₹ 1355.08 + 243.91 GST
In stock
SKU
PRO3250

The BME680 Environmental Sensor is a breakout that combines a gas sensor with temperature, humidity and barometric pressure sensing for a complete environmental sensor in a single package. Applications - Personal air quality tracker, Air quality mapping, Air quality inside cars & public transport, Enhanced context awareness, Accurate step & calorie tracker, Quick GPS-fix & improved navigation, Indicator of too high / low humidity, Air quality & well-being indicator, Sleep / recovery tracker, Weather trend, Stair counter, Floor level detection

The BME680 Environmental Sensor is a breakout that combines a gas sensor with temperature, humidity and barometric pressure sensing for a complete environmental sensor in a single package. The gas sensor on the BME680 can detect a wide variety of volatile organic compounds (or VOC for short) to monitor indoor air quality. Combine that with precise temperature, humidity, and barometric pressure and the BME680 can work as a completely standalone environmental sensor all in a 1in. x 1in. breakout! It is especially developed for mobile applications and wearables where size and low power consumption are critical requirements.

The sensor communicates via either I2C or SPI. We've broken out both the I2C and SPI pins to standard 0.1in.-spaced pins.

Like the BME280 & BMP280, this precision sensor from Bosch can measure humidity with ±3% accuracy, barometric pressure with ±1 hPa absolute accuracy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with  ±1 meter or better accuracy!

Features

  • Uses I2C interface. I2C Addresses: 0x77 (Default) or 0x76
  • Operating voltage range
    • 1.71V - 3.6V
  • Relative humidity
    • Operating range: 0% to 100%
    • Absolute Accuracy: ±3%RH
    • Resolution: ±0.008%RH
  • Temperature
    • Operating range: -40°C to +85 °C
    • Absolute Accuracy: ±0.5°C to ±1.0°C
    • Resolution: 0.01°C
  • Pressure
    • Operating range: 300hPa - 1100hPa
    • Relative accuracy: ±12Pa (25°C to 40°C @ constant RH)
    • Absolute accuracy: ±60Pa (0°C to 65°C)
    • Resolution: 0.18PA, highest oversampling
  • Gas
    • Resolution of gas sensor resistance: 0.05% to 0.11%
  • Typical current consumption (varies based on mode and active sensor)
    • 2.1µA to 18mA
    • 0.15 µA (sleep mode)

 

The BME680 takes those sensors to the next step in that it contains a small MOX sensor. The heated metal oxide changes resistance based on the volatile organic compounds (VOC) in the air, so it can be used to detect gasses & alcohols such as Ethanol, Alcohol and Carbon Monoxide, and perform air quality measurements. Note it will give you one resistance value, with overall VOC content, but it cannot differentiate gasses or alcohols.

Please note this sensor, like all VOC/gas sensors, has variability and to get precise measurements you will want to calibrate it against known sources! That said, for general environmental sensors, it will give you a good idea of trends and comparisons. We recommend that you run this sensor for 48 hours when you first receive it to "burn it in", and then 30 minutes in the desired mode every time the sensor is in use. This is because the sensitivity levels of the sensor will change during early use, and the resistance will slowly rise over time as the MOX warms up to its baseline reading.

For your convenience, we've pick-and-placed the sensor on a PCB with a 3.3V regulator and some level shifting, so it can be easily used with your favorite 3.3V or 5V microcontroller. All of the pins of the BME680 are available on standard 0.100”/ 2.54mm pitch headers for use with a breadboard.

Possible use cases & Applications:

  • Personal air quality tracker
  • Air quality mapping
  • Air quality inside cars & public transport
  • Enhanced context awareness
  • Accurate step & calorie tracker
  • Quick GPS-fix & improved navigation
  • Indicator of too high / low humidity
  • Air quality & well-being indicator
  • Sleep / recovery tracker
  • Weather trend
  • Stair counter
  • Floor level detection
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