BMP388 / BMP390 Temperature+Pressure Sensor
The bmp3xx sensor platform allows you to use your BMP388 or BMP390
(datasheet, BMP390 product page) temperature and pressure sensors with ESPHome.
Either I²C bus or SPI bus is required to be set up in your configuration for this sensor to work.

Over I²C
The bmp3xx_i2c component allows you to use the device over I²C interface.
# Example configuration entry for I2C connection
sensor:
- platform: bmp3xx_i2c
temperature:
name: "Outside Temperature"
oversampling: 16x
pressure:
name: "Outside Pressure"
address: 0x77
update_interval: 60sConfiguration variables
address (Optional, int): Manually specify the I²C address of the sensor. Defaults to
0x77. Another address can be0x76.temperature (Optional): The information for the temperature sensor.
oversampling (Optional): The oversampling parameter for the temperature sensor. See Oversampling Options.
All other options from Sensor.
pressure (Optional): The information for the pressure sensor.
oversampling (Optional): The oversampling parameter for the temperature sensor. See Oversampling Options.
All other options from Sensor.
iir_filter (Optional): Set up an Infinite Impulse Response filter to increase accuracy. One of
OFF,2x,4x,16x,32,64x,128x. Defaults toOFF.update_interval (Optional, Time): The interval to check the sensor. Defaults to
60s.
Over SPI
The bmp3xx_spi component allows you to use the device over SPI interface.
# Example configuration entry for SPI connection
sensor:
- platform: bmp3xx_spi
temperature:
name: "Outside Temperature"
oversampling: 16x
pressure:
name: "Outside Pressure"
cs_pin: 13
update_interval: 60sConfiguration variables
cs_pin (Required, Pin Schema): The Chip Select (CS) pin.
temperature (Optional): The information for the temperature sensor.
oversampling (Optional): The oversampling parameter for the temperature sensor. See Oversampling Options.
All other options from Sensor.
pressure (Optional): The information for the pressure sensor.
oversampling (Optional): The oversampling parameter for the temperature sensor. See Oversampling Options.
All other options from Sensor.
iir_filter (Optional): Set up an Infinite Impulse Response filter to increase accuracy. One of
OFF,2x,4x,16x,32,64x,128x. Defaults toOFF.address (Optional, int): I2C only. Manually specify the I²C address of the sensor. Defaults to
0x77. Another address can be0x76.update_interval (Optional, Time): The interval to check the sensor. Defaults to
60s.
Oversampling Options
By default, the BMP3xx sensor measures pressure 16 times and temperature 2 times when requesting a new value. You can, however, configure this amount. Possible oversampling values:
NONE(value is skipped)2x4x8x16x(default)32x