Understanding BME680: A 4-in-1 Environmental Digital Sensor
Explore the BME680, a versatile 4-in-1 environmental digital sensor launched in 2015, known for its temperature, pressure, humidity, and gas measuring capabilities. Learn about its operating range, accuracy, integrated gas sensor, and comparison with BME280 and BMP280. Discover how this sensor works, its applications in indoor air quality, personal weather stations, GPS navigation, IoT, automated homes, and agriculture.
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Presentation Transcript
BME680 Presented by Group 3: Akash Prasad, Alex Huynh, Grace Chiou Department of Physics - University of Illinois at Urbana-Champaign PHYS 398 - February 26, 2021
What is a BME680? First 4-in-1 environmental digital sensor, launched in 2015 Temperature Pressure Humidity Gas Features Small dimensions Low power consumption High EMC robustness
Operating and Accuracy Ranges Sensor Operating Range Temperature -40 to 85 C (or -40 to 185 F) Pressure 300 to 1100 hPa (sea level ~ 1013 hPa) Humidity 0 to 100% humidity Sensor Accuracy Temperature 1 Celsius Pressure 1 hPa Humidity 3 %
BME680s Integrated Gas Sensor Volatile Organic Compound (VOC) + Conductivity Resistance BME680 Gas Sensor
Compare to BME280 and BMP280 BME280 BMP280 Absolute barometric pressure sensor Pressure Temperature 3-in-1 humidity sensor Humidity Temperature Pressure
Piezoresistive Effect Image: https://minecraft.gamepedia.com/Iron_Ingot
Applications Indoor Air Quality Can detect amount of particulates of various types, such as carbon monoxide. Personal weather-stations GPS and navigation Both for indoors and outdoors Elevation and vertical speed detection Changing floor level Internet of Things Automated homes and agriculture depend on measurements BME680 is capable of.
References Gas Sensor Guide BME280 BMP280 Pressure Sensors Piezoresistive Effect Wheatstone Bridge BME680
