Pressure

Sky is no limit, elevate your altitude data!

🛆 Pressure Chip

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.

Technological Capabilities

Characteristic

Description

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

Hardware integration is straightforward. The pressure sensor only requires two decoupling capacitor of 100nF (see page 35 of the datasheet).

Pin Number

Symbol

Description

1 & 7

GND

Connected to GND

CSB

Chip Select (for I2C use, connect to VDDIO)

SDI

I2C data bus (SDA) Serial Input & Output

SCK

I2C digital bus (SCL)

Serial Clock Input

SDO

Serial Data Output (for I2C use, connect to GND)

VDDIO

Digital Interface Supply

VDD

Analog Supply (From 1.71V To 3.6V)

🛆 Documentation

PreviousGeolocation System NexteCompass

Last updated 2 years ago

hashtag🛆 Pressure Chip

hashtagTechnological Capabilities

hashtag🛆 Hardware Integration

hashtag🛆 Documentation

🛆 Pressure Chip

Technological Capabilities

🛆 Hardware Integration

🛆 Documentation