ADXL90393 MicroPython Library¶

mlx90393¶

MicroPython Driver for the MLX90393 magnetometer sensor

• Author(s): Jose D. Montoya

Implementation Notes¶

Software and Dependencies:

This library depends on Micropython

class micropython_mlx90393.mlx90393.CBits(num_bits: int, register_address: int, start_bit: int, register_width=2, lsb_first=True, cmd_read=None, cmd_write=None)[source]¶

Changes bits from a byte register

class micropython_mlx90393.mlx90393.MLX90393(i2c, address=0x0C)[source]¶

Main class for the Sensor

Parameters:¶

i2c : I2C¶

The I2C bus the MLX90393 is connected to.

address : int¶

The I2C device address. Defaults to 0x0C

Raises:¶

RuntimeError – if the sensor is not found

Quickstart: Importing and using the device

Here is an example of using the MLX90393 class. First you will need to import the libraries to use the sensor

from machine import Pin, I2C
import micropython_mlx90393.mlx90393 as mlx90393

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

i2c = I2C(sda=Pin(8), scl=Pin(9))
mlx = mlx90393.MLX90393(i2c)

Now you have access to the magnetic attribute

magx, magy, magz = mlx.magnetic

property digital_filter¶

Digital filter applicable to ADC

Mode	Value
mlx90393.FILTER_0	0x0
mlx90393.FILTER_1	0x1
mlx90393.FILTER_2	0x2
mlx90393.FILTER_3	0x3
mlx90393.FILTER_4	0x4
mlx90393.FILTER_5	0x5
mlx90393.FILTER_6	0x6
mlx90393.FILTER_7	0x7

property gain¶

The gain setting for the device. Sets the analog gain to the desired value. The sensitivity is dependent on the axis (the X- and Y-axis have higher sensitivity, compared with the Z-axis, expressed in LSB/µT) as well as the setting of the resolution_x, resolution_y, resolution_z parameter.

property magnetic¶

The processed magnetometer sensor values. A 3-tuple of X, Y, Z axis values in microteslas that are signed floats.

property oversampling¶

Temperature sensor ADC oversampling ratio

Note

The MLX90393 provides configurable filters to adjust the tradeoff between current consumption, noise, and conversion time. See section 15.1.5 for details on selecting the conversion time by adjusting oversampling and digital_filter

Mode	Value
mlx90393.OSR_0	0x0
mlx90393.OSR_1	0x1
mlx90393.OSR_2	0x2
mlx90393.OSR_3	0x3

property resolution_x¶

X Axis Resolution

Mode	Value
mlx90393.RESOLUTION_3	0x3
mlx90393.RESOLUTION_2	0x2
mlx90393.RESOLUTION_1	0x1
mlx90393.RESOLUTION_0	0x0

property resolution_y¶

Y Axis Resolution

Mode	Value
mlx90393.RESOLUTION_3	0x3
mlx90393.RESOLUTION_2	0x2
mlx90393.RESOLUTION_1	0x1
mlx90393.RESOLUTION_0	0x0

property resolution_z¶

Z Axis Resolution

Mode	Value
mlx90393.RESOLUTION_3	0x3
mlx90393.RESOLUTION_2	0x2
mlx90393.RESOLUTION_1	0x1
mlx90393.RESOLUTION_0	0x0

class micropython_mlx90393.mlx90393.RegisterStructCMD(register_address: int, form: str, cmd_read: int = None, cmd_write: int = None)[source]¶

Register Struct