Bosch BME280 - About the BME280; Table 1: the Technical Specifications of the BME280 Sensor

Bosch Sensortec | BME280 User Manual 5 | 23
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2 About the BME280
The typical applications that use BME280 are:
• Context awareness, e.g. skin detection, room change detection
• Fitness monitoring / well-being
• Warning regarding dryness or high temperatures
• Measurement of volume and air flow
• Home automation control
• control heating, venting, air conditioning (HVAC)
• Internet of things
• GPS enhancement (e.g. time-to-first-fix improvement, dead reckoning, slope detection)
• Indoor navigation (change of floor detection, elevator detection)
• Outdoor navigation, leisure and sports applications
• Weather forecast
• Vertical velocity indication (rise/sink speed)
The targeted devices that use BME280 are:
• Handsets such as mobile phones, tablet PCs, GPS devices
• Navigation systems
• Gaming, e.g flying toys
• Camera (DSC, video)
• Home weather stations
• Flying toys
• Watches
Table 1 : The technical specifications of the BME280 sensor
Parameter
Technical Data
Package Dimensions
8-Pin LGA with metal
2.5 x 2.5 x 0.93 mm³
Operation Range (full accuracy)
Pressure: 300...1100 hPa
Temperature: -40…85°C
Supply Voltage V
DDIO
Supply Voltage V
DD
1.2 ... 3.6 V
1.71 ... 3.6 V
Interface
I²C and SPI
Average current consumption
(1Hz data refresh rate)
1.8 μA @ 1 Hz (H, T)
2.8 μA @ 1 Hz (P, T)
3.6 μA @ 1 Hz (H, P, T)
T = temperature
Average current consumption in
sleep mode
0.1 μA
Pressure sensor
RMS Noise
Sensitivity Error
Temperature coefficient offset
0.2Pa (equiv. to 1.7cm)
±0.25% (equiv. to 1m at 400m height change)
±1.5Pa/K (equiv. to ±12.6cm at 1 °C temperature
change)
Humidity sensor:
Response time (τ63%)
Accuracy tolerance
Hysteresis
1 s
±3% relative humidity
≤2% relative humidity