bme680 - Environmental Sensor

Allows access to environmental data of card10’s surroundings.

Example:

import bme680, utime

with bme680.Bme680() as environment:
    while True:
        d = environment.get_data()

        print("Temperature:    {:10.2f} °C".format(d.temperature))
        print("Humidity:       {:10.2f} % r.h.".format(d.humidity))
        print("Pressure:       {:10.2f} hPa".format(d.pressure))
        print("Gas Resistance: {:10.2f} Ω".format(d.resistance))

        utime.sleep(1)

Sensor Class

class bme680.Bme680

BME680 4-in-1 environmental sensor.

Example:

import bme680

environment = bme680.Bme680()
print("Current temperature: {:4.1f} °C".format(environment.temperature()))

This class can also be used as a context-manager which will automatically deactivate the sensor on exit:

import bme680

with bme680.Bme680() as environment:
    print("H: {:4.1f}%".format(environment.humidity()))

# Sensor is off again, saving power

New in version 1.10.

get_data()

Get all sensor data at once.

get_data() returns a namedtuple with the following fields:

• temperature: Temperature in °C

• humidity: Relative humidity

• pressure: Barometric pressure in hPa

• gas_resistance: Gas resistance in Ω

Example:

import bme680

with bme680.Bme680() as environment:
    data = environment.get_data()

    print("T: {}".format(data.temperature))
    print("H: {}".format(data.humidity))

close()

Stop/deinit the BME680.

If you no longer need measurements, you should call this function to save power.

temperature()

Measure current temperature in °C.

Example:

environment = bme680.Bme680()
print(str(environment.temperature()))

humidity()

Measure current relative humidity.

Example:

environment = bme680.Bme680()
print(str(environment.humidity()))

pressure()

Measure current barometric pressure in hPa.

Example:

environment = bme680.Bme680()
print(str(environment.pressure()))

gas_resistance()

Measure current gas resistance in Ω.

Example:

environment = bme680.Bme680()
print(str(environment.gas_resistance()))

Deprecated Interface

The following functions should no longer be used directly. The only exist for compatibility as they were the old BME680 interface in previous firmware versions.

bme680.init()

Initialize the sensor.

Before being able to read data from the sensor, you have to call bme680.init().

New in version 1.4.

Deprecated since version 1.10: Use the bme680.Bme680 class instead.

bme680.get_data()

Perform a single measurement of environmental data.

Returns

Tuple containing temperature (°C), humidity (% r.h.), pressure (hPa) and gas resistance (Ohm).

New in version 1.4.

Deprecated since version 1.10: Use the bme680.Bme680 class instead.

bme680.deinit()

Deinitialize the sensor.

New in version 1.4.

Deprecated since version 1.10: Use the bme680.Bme680 class instead.