pi_weather.core.managers.service module

Definition of BMP390 sensor service

class pi_weather.core.managers.service.BMP390Service

Bases: object

BMP390 sensor service class

__init__()

Constructor function (init)

Return type:

None

static _is_sensor_enabled()

Function to check whether current sensor is enabled or disabled from the docker-compose.yaml

Returns:

True if BMP390 sensor is enabled, False otherwise

Return type:

bool

get_latest()

Function to get the latest sensor reading

Returns:

Latest sensor data read by the sensor

Return type:

LatestSensorReading | None

_update_metrics(p, t, a, st, et)

Function to update Prometheus metrics

Parameters:

• p (float) – Pressure data read

• t (float) – Temperature data read

• a (float) – Altitude data computed

• st (float) – Sensor time data read

• et (float) – Event time generated

Returns:

Nothing

Return type:

None

_save_latest_reading(p, t, a, st, et)

Function to record/save the latest sensor reading

Parameters:

• p (float) – Pressure data read

• t (float) – Temperature data read

• a (float) – Altitude data computed

• st (float) – Sensor time data read

• et (float) – Event time generated

Returns:

Nothing

Return type:

None

_read_sensor_data()

Function to read sensor data This method will record the latest reading + update Prometheus metrics

Returns:

Nothing

Return type:

None

_log_new_data(p, t, a, st, et)

Function to correctly log the new data read (regardless the data acquisition mode

Parameters:

• p (float) – Pressure data read

• t (float) – Temperature data read

• a (float) – Altitude data computed

• st (float) – Sensor time data read

• et (float) – Event time generated

Returns:

Nothing

Return type:

None

_on_interrupt()

Function to be executed on hardware interrupt

Returns:

Nothing

Return type:

None

_on_interrupt_end()

Function to be executed on hardware interrupt end (when_deactivated)

Returns:

Nothing

Return type:

None

_on_polling()

Function to be executed within the separate polling thread (target func)

Returns:

Nothing

Return type:

None

start()

Function to start the sensor data capture

Returns:

Nothing

Return type:

None

stop()

Function to stop the sensor data capture

Returns:

Nothing

Return type:

None