BME280 - Digital humidity, temperature and pressure sensor - I2C/SPI - Connector version - SparkFun SEN-13905

Multifunctional environmental sensor from SparkFun equipped with the BME280 chip. It allows you to measure atmospheric values such as temperature, humidity and pressure. In addition, the pressure measurement allows the indirect measurement of altitudes up to 9.2 km . The measuring range for temperature is -40 ° C to 85 ° C , humidity is from 0% to 100% RH , and pressure is from 300 hPa to 1100 hPa . The subject of sale is a sensor with soldered connectors.

BME280 - digital I2C / SPI humidity, temperature and atmospheric pressure sensor - version with connectors - SparkFun SEN-13905.

• Built-in chip: BME280
• Supply voltage: 1.8 V to 3.3 V
• Communication: I2C or SPI
• The lines of the I2C bus are 5V tolerant
• Humidity:
  • Measuring range: 0% to 100% RH
  • Accuracy: 3% for the range from 20% to 80% RH
• Temperature:
  • Measurement range: - 40 ° C to 85 ° C
  • Accuracy: +/- 1 ° C
  • Resolution: 0.1 ° C
• Pressure:
  • Measurement range: from 30,000 Pa to 110,000 Pa
  • Relative accuracy: 12 Pa
  • Absolute accuracy: 100 Pa
  • Sampling time: 1 s
• Conclusions: goldpin connectors 2.54 mm raster soldered to the board

• GND - the ground of the system
• 3.3V - power supply in the range from 1.8 V to 3.6 V
• SDA - data line of the I2C bus
• SCL - clock line of the I2C bus
• SCK - clock line of the SPI bus
• SDO - data line of the SPI bus
• SDI - data line of the SPI bus
• CS - Chip Select - selection of the device of the SPI bus, activated by the low state

All the outputs of the board are marked, which makes the connection much easier.

• The website of the manufacturer: SparkFun SEN-13905
• User Guide
• Layout diagram
• EagleCAD files
• Technical documentation BME280
• GitHub (design files)
• GitHub (library and sample program code)