MicroPython DPS310 Library¶

`dps310`¶

MicroPython Driver for the DP310 Barametric Sensor

Author: Jose D. Montoya

Implementation Notes¶

Software and Dependencies:

This library depends on Micropython

class micropython_dps310.dps310.DPS310(i2c, address=0x77)[source]¶

Main class for the Sensor

Parameters:¶

i2c : I2C¶: The I2C bus the DPS310 is connected to.
address : int¶: The I2C device address. Defaults to 0x77

Raises:¶

RuntimeError – if the sensor is not found

Quickstart: Importing and using the device

Here is an example of using the micropython_dps310.DPS310 class. First you will need to import the libraries to use the sensor

from machine import Pin, I2C
import micropython_dps310.dps310 as dps310

Once this is done you can define your machine.I2C object and define your sensor object

i2c = I2C(1, sda=Pin(2), scl=Pin(3))
dps = dps310.DPS310(i2c)

Now you have access to the pressure attribute

press = dps.pressure

property altitude : float¶: The altitude in meters based on the sea level pressure (sea_level_pressure) - which you must enter ahead of time

property mode : str¶

Mode	Description
`dps310.IDLE`	Puts the sensor into a shutdown state
`dps310.ONE_PRESSURE`	Setting `mode` to `dps310.ONE_PRESSURE` takes a single pressure measurement then switches to `dps310.IDLE`
`dps310.ONE_TEMPERATURE`	Setting `mode` to `dps310.ONE_TEMPERATURE` takes a single temperature measurement then switches to `dps310.IDLE`
`dps310.CONT_PRESSURE`	Take pressure measurements at the current `pressure_rate`. `temperature` will not be updated
`dps310.CONT_TEMP`	Take temperature measurements at the current `temperature_rate`. `pressure` will not be updated
`dps310.CONT_PRESTEMP`	Take temperature and pressure measurements at the current `pressure_rate` and `temperature_rate`

property pressure : float¶: Returns the current pressure reading in hectoPascals (hPa)

property pressure_oversample : str¶

Pressure Oversample. In order to achieve a higher precision, the sensor DPS310 will read multiple times ( oversampling ), and combine the readings into one result. This increases the current consumption and also the measurement time, reducing the maximum possible measurement rate. It is necessary to balance the accuracy and data rate required for each application with the allowable current consumption.

Mode	Value
`dps310.SAMPLE_PER_SECOND_1`	`0b000` # 1 time (Pressure Low Precision)
`dps310.SAMPLE_PER_SECOND_2`	`0b001` # 2 times (Pressure Low Power)
`dps310.SAMPLE_PER_SECOND_4`	`0b010` # 4 times
`dps310.SAMPLE_PER_SECOND_8`	`0b011` # 8 times
`dps310.SAMPLE_PER_SECOND_16`	`0b100` # 16 times (Pressure Standard).**
`dps310.SAMPLE_PER_SECOND_32`	`0b101` # 32 times **
`dps310.SAMPLE_PER_SECOND_64`	`0b110` # 64 times (Pressure High Precision) **
`dps310.SAMPLE_PER_SECOND_128`	`0b111` # 128 times **

property pressure_rate : str¶

Mode	Value
`dps310.RATE_1_HZ`	`0b000`
`dps310.RATE_2_HZ`	`0b001`
`dps310.RATE_4_HZ`	`0b010`
`dps310.RATE_8_HZ`	`0b011`
`dps310.RATE_16_HZ`	`0b100`
`dps310.RATE_32_HZ`	`0b101`
`dps310.RATE_64_HZ`	`0b110`
`dps310.RATE_128_HZ`	`0b111`

property sea_level_pressure : float¶: The local sea level pressure in hectoPascals (aka millibars). This is used for calculation of altitude. Values are typically in the range 980 - 1030.

property temperature : float¶: The current temperature reading in Celsius

property temperature_oversample : str¶

Temperature Oversample. In order to achieve a higher precision, the sensor DPS310 will read multiple times ( oversampling ), and combine the readings into one result. This increases the current consumption and also the measurement time, reducing the maximum possible measurement rate. It is necessary to balance the accuracy and data rate required for each application with the allowable current consumption.

Mode	Value
`dps310.SAMPLE_PER_SECOND_1`	`0b000` # 1 time
`dps310.SAMPLE_PER_SECOND_2`	`0b001` # 2 times
`dps310.SAMPLE_PER_SECOND_4`	`0b010` # 4 times
`dps310.SAMPLE_PER_SECOND_8`	`0b011` # 8 times
`dps310.SAMPLE_PER_SECOND_16`	`0b100` # 16 times
`dps310.SAMPLE_PER_SECOND_32`	`0b101` # 32 times
`dps310.SAMPLE_PER_SECOND_64`	`0b110` # 64 times
`dps310.SAMPLE_PER_SECOND_128`	`0b111` # 128 times

property temperature_rate : str¶

Mode	Value
`dps310.RATE_1_HZ`	`0b000`
`dps310.RATE_2_HZ`	`0b001`
`dps310.RATE_4_HZ`	`0b010`
`dps310.RATE_8_HZ`	`0b011`
`dps310.RATE_16_HZ`	`0b100`
`dps310.RATE_32_HZ`	`0b101`
`dps310.RATE_64_HZ`	`0b110`
`dps310.RATE_128_HZ`	`0b111`

MicroPython DPS310 Library¶

dps310¶

Implementation Notes¶

`dps310`¶