Bosch Sensortec, Akustica

First Integrated Environmental Unit opens broad range of applications Bosch Sensortec's BME280 sensor combines pressure, humidity and temperature measurement High accuracy and versatility, very small footprint

  • Fastest temperature and humidity measurement in the market
  • Supports many emerging smartphone applications such as home automation control and innovative sport and fitness use cases
  • Adds floor level tracking to indoor navigation
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  • January 06, 2014
  • Bosch Sensortec, Akustica
  • Press releases
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press release

Bosch Sensortec announces a world first in sensor technology: the BME280 Integrated Environmental Unit combines sensors for pressure, humidity and temperature in a single package. This unique sensor has been developed to support a broad range of emerging high performance applications such as indoor navigation, home automation control, personalized weather stations and innovative sport and fitness applications. The precise altitude measurement function of the BME280 is a key requirement in applications such as indoor navigation with floor tracking where exceptional accuracy, low temperature drift and high resolution are needed. Additionally, the BME280 has a best-in-class response time of just one second for humidity determination, excellent ambient temperature measurement and low energy consumption.

More precise measurement at lowest power consumption
With a small footprint of just 2.5 x 2.5 mm2 and a height of 0.93 mm in a space-saving 8-pin LGA package, the sensor offers high design flexibility and is ideally suited for mobile devices with limited space such as smartphones, tablets, smart watches and electronic wristbands. Very low current consumption of only 3.6 µA (at 1 Hz) makes the BME280 Integrated Environmental Unit particularly suitable for battery-driven applications. Three power modes and separately configurable oversampling rates for pressure and temperature measurements allow designers to adapt the BME280 to a wide range of use cases.

The humidity sensor within the Integrated Environmental Unit measures relative humidity (0% to 100%) across a wide temperature range from -40°C to +85°C with a fast response time of less than 1 second. The humidity measurement accuracy is ±3% with a hysteresis of 2% or better, and the temperature reading accuracy is within 0.5°C.

The BME280 offers excellent overall precision. The relative accuracy of pressure readings is ±0.12 hPA, which equates to ±1 m (3.28 ft) of altitude difference at a resolution of 1.5 cm (0.59 inches). As a result, the BME280 is ideal for enhanced high performance GPS applications where it can be used to achieve more precise and faster position determination.

BME280 pressure measurement is very stable over temperature: The low temperature coefficient of 1.5 Pa/K, translates into an altitude stability over temperature measure of 12.6 cm/K (5.0 inches/K). This precision, along with its versatility and compactness, makes the BME280 ideal not only for innovative new applications but also to improve the exactness of existing ones. A few examples: the sensor can be used to implement indoor climate control applications for smartphones; it allows altitude profiling to be integrated into sports applications, enabling better training performance monitoring, and much more. As a connected sensor in the Internet of Things, the BME280 enables a host of further applications in home automation, smart energy, smart transportation and elderly care.

Bosch Sensortec also provides support software. The BSH1.0 algorithm enables developers to implement a precise temperature compensation function.

First samples of the BME280 to key development customers are available now.

Features and properties
Relative humidity range: 0 to 100 % at temperatures from -40°C to +85°C
Response time for humidity measurements: 1s
Humidity accuracy tolerance: ± 3 % relative humidity
Hysteresis: ≤ 2 % relative humidity
Pressure range: 300 to 1100 hPa
Absolute pressure accuracy: typ ± 1hPa after soldering
Absolute temperature accuracy ±0.5°C at 25°C
Communication interfaces: I2C, SPI

Tina, Horstmann,
phone: +49 7121 35-35924

Click here to find further information.

Bosch Sensortec GmbH is a fully owned subsidiary of Robert Bosch GmbH that is dedicated to delivering a complete portfolio of microelectromechanical systems (MEMS) sensors and solutions that enable consumer electronics to be connected. Bosch Sensortec develops and markets a wide portfolio of MEMS sensors and solutions tailored for smartphones, tablets, wearable devices and IoT (Internet of Things) applications.

The product portfolio includes 3-axis acceleration, gyroscope and geomagnetic sensors, integrated 6- and 9-axis sensors, environmental sensors, and a comprehensive software portfolio. Since its foundation in 2005, Bosch Sensortec has emerged as the MEMS technology leader in the markets it addresses. Bosch has been both a pioneer and a global market leader in the MEMS sensor segment since 1995 and has, to date, sold more than 7 billion MEMS sensors. Bosch sensors can be found in three out of four smartphones worldwide.

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The Bosch Group is a leading global supplier of technology and services. It employs roughly 375,000 associates worldwide (as of December 31, 2015). The company generated sales of 70.6 billion euros in 2015. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiaries and regional companies in some 60 countries. Including sales and service partners, Bosch’s global manufacturing and sales network covers some 150 countries. The basis for the company’s future growth is its innovative strength. Bosch employs 55,800 associates in research and development at 118 locations across the globe. The Bosch Group’s strategic objective is to deliver innovations for a connected life. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.”

Further information is available online at and,

PI8368 - January 06, 2014

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