MicroPython MPL3115A2 Library¶

mpl3115a2¶

MicroPython driver for the NXP MPL3115A2 Pressure and Temperature sensor

• Author(s): Jose D. Montoya

class micropython_mpl3115a2.mpl3115a2.MPL3115A2(i2c, address: int = 0x60)[source]¶

Driver for the MPL3115A2 Sensor connected over I2C.

Parameters:¶

i2c : I2C¶

The I2C bus the MPL3115A2 is connected to.

address : int¶

The I2C device address. Defaults to 0x60

Raises:¶

RuntimeError – if the sensor is not found

Quickstart: Importing and using the device

Here is an example of using the MPL3115A2 class. First you will need to import the libraries to use the sensor

from machine import Pin, I2C
from micropython_mpl3115a2 import mpl3115a2

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))
mpl3115a2 = mpl3115a2.MPL3115A2(i2c)

Now you have access to the attributes

press = mpl3115a2.pressure

property altitude : float¶

Read the altitude as calculated based on the sensor pressure and previously configured pressure at sea-level. This will return a value in meters. Set the sea-level pressure by updating the sealevel_pressure property first to get a more accurate altitude value.

property oversample_ratio : str¶

Sensor oversample_ratio

Mode	Value
mpl3115a2.OS1	0b000
mpl3115a2.OS2	0b001
mpl3115a2.OS4	0b010
mpl3115a2.OS8	0b011
mpl3115a2.OS16	0b100
mpl3115a2.OS32	0b101
mpl3115a2.OS64	0b110
mpl3115a2.OS128	0b111

property pressure : float¶

Read the barometric pressure detected by the sensor in Hectopascals.

property sealevel_pressure : float¶

Read and write the pressure at sea-level used to calculate altitude.

property temperature : float¶

Read the temperature as measured by the sensor in Celsius.