Pressure
Sky is no limit, elevate your altitude data!
Last updated
Sky is no limit, elevate your altitude data!
Last updated
BOSCH's BME280 pressure sensor is perfect for our mini GPS tracker. Its application is very popular in embedded systems, due to its precise measurements and miniature size. The metal casing houses both a pressure sensor and a temperature sensor.
In addition, its technological and energy performances are remarkable: 2.7µA for a reading every Hz in low-power mode. It's the perfect sensor for data acquisition at low energy cost.
Last but not least, the BMP280's price/performance ratio is equally impressive. BOSCH has succeeded in making a reliable, high-quality sensor affordable.
Measurement Range
Pressure: From 300 to 1100 hPa
Temperature: From -40°C To 85°C
Resolution
Pressure: ~0.01hPa
Temperature: ~0.01°C
Average Power Consumption
Normal Mode : 3.4µA @ 1Hz Low Power Mode : 2.74µA @ 1Hz
Acquisition Time
~ 5.5ms
I2C Speed
Jusqu'à 157Hz
Hardware integration is straightforward. The pressure sensor only requires two decoupling capacitor of 100nF (see page 35 of the datasheet).
1 & 7
GND
Connected to GND
2
CSB
Chip Select (for I2C use, connect to VDDIO)
3
SDI
I2C data bus (SDA) Serial Input & Output
4
SCK
I2C digital bus (SCL)
Serial Clock Input
5
SDO
Serial Data Output (for I2C use, connect to GND)
6
VDDIO
Digital Interface Supply
8
VDD
Analog Supply (From 1.71V To 3.6V)
