Combined pressure, temperature, and humidity sensor. Bosch, I2C/SPI.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | SDO | I2C address select, SPI MISO | BUS |
| 2 | CSB | Chip select, high for I2C | I/O |
| 3 | SDA | I2C data, SPI MOSI | BUS |
| 4 | SCL | I2C / SPI clock | BUS |
| 5 | GND | Ground | GND |
| 6 | VCC | Power 1.8V–3.6V | PWR |
The BME280 is an environmental sensor by Bosch measuring pressure, temperature, and humidity. It is the BME version of the BMP280 with added humidity sensing. Supports I2C and SPI, popular for weather stations.