Las Vegas, Nev. − Bosch Sensortec announced the introduction of the BME280 integrated environmental unit at the 2014 Consumer Electronics Show (CES). Touted as the industry's first integrated environmental unit, the BME280 device combines sensors for pressure, humidity and temperature in a single package. Applications include indoor navigation, home automation control, personalized weather stations, and 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 high accuracy, low temperature drift and high resolution are needed, said Bosch. The BME280 also is said to offer a best-in-class response time of just one second for humidity determination, excellent ambient temperature measurement, and low energy consumption.
A benefit for mobile devices such as smartphones, tablets, smart watches, and electronic wristbands is its small footprint of 2.5 x 2.5 mm2 with a height of 0.93 mm in an 8-pin LGA package. The BME280 also offers very low current consumption of 3.6 µA (at 1 Hz), making it 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," said Bosch.
- 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
Support software is provided. The BSH1.0 algorithm enables developers to implement a precise temperature compensation function, according to Bosch.
Availability: First samples are available now to key development customers.