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BME280 - digital sensor of humidity, temperature and atmospheric pressure I2C/SPI - SparkFun SEN-13676

Index: SPF-04901 EAN: 5904422352127

Digital sensor allows to measure atmospheric conditions, i.e. temperature from -40 °C to 85 °C, humidity from 0 to 100 %Rh and pressure from 300 hPa to 1100 hPa . The last value allows for indirect height measurement up to 9,2 km. Sensor communicates via I2C or SPI bus, leads work with voltage 3,3 V, however I2C lines tolerate higher value up to 5 V.

BME280 - digital sensor of humidity, temperature and atmospheric pressure I2C/SPI - SparkFun...
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Manufacturer: SparkFun
Compatibility: Arduino Raspberry Pi

Description: BME280 - I2C/SPI digital humidity, temperature and pressure sensor - SparkFun SEN-13676

Digital sensor allows to measure current atmospheric conditions: temperature from -40 °C to 85 °C, humidity from 0 to 100 %Rh and pressure from 300 hPa to 1100 hPa . The last value also allows for indirect height measurement up to 9,2 km with an average accuracy of 1 m. The sensor communicates via the I2C or SPI bus, the leads work with a voltage of 3.3 V, however the I2C lines tolerate a higher value up to 5 V. This allows the sensor to be operated directly from Arduino boards.

Product compatible with Arduino

The manufacturer has prepared a user guide and a library on GitHub.

Connection of BME280 sensor

Board has 10 holes with 2,54 mm raster, which allow to solder goldpin connector strip (kit doesn't include connectors, you can buy them separately).

Pin Description
GND System ground
3.3V Supply voltage from 1.8 V to 3.3 V.
SDA I2C bus data line - tolerates 5 V.
SCL I2C bus clock line - tolerates 5V.
GND System ground.
3.3V Supply voltage from 1.8 V to 3.3 V.
SCK SPI bus clock line - operates with voltage up to 3.3 V.
SDO SPI bus data line - operates up to 3.3V.
SDI SPI bus data line - operates with a voltage up to 3.3 V.
CS Chip Select - SPI bus device selection, activated by a low state - operates with a voltage up to 3.3 V.

Specification for humidity, temperature and pressure sensor BME280

  • Supply voltage: from 1.8 V to 3.3 V
  • Communication: I2C or SPI
  • I2C bus lines tolerate a voltage of 5 V
  • Humidity:
    • Measuring range: 0 %Rh to 100 %Rh
    • Accuracy: 3 % for the range from 20 %Rh to 80 %Rh
  • Temperature:
    • Measuring range: from - 40 °C to 85 °C
    • Accuracy: + / - 1 °C
  • Pressure:
    • Measuring range: from 30,000 Pa to 110,000 Pa
    • Accuracy: 100 Pa
  • Connectors: holes for soldering goldpin connectors, 2.54 mm pitch (not supplied, to be purchased separately)
  • Board dimensions: 20 x 13 mm

Interface SPI / I2C
Sensor - Temperature to 100 °C
Sensor - Temperature accuracy +/- 1 °C
Sensor - Temperature from -40 °C - 120 °C
Package width 3 cm
Package height 0.25 cm
Package depth 2.3 cm
Package weight 0.002 kg

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