IMU Pro Unit

The IMU Pro Unit is a versatile and integrated inertial motion unit. It incorporates advanced six-axis attitude sensors (BMI270), a three-axis geomagnetic sensor (BMM150), and an atmospheric pressure sensor (BMP280) to provide comprehensive measurement and detection capabilities for users. Whether it is measuring acceleration and angular velocity, detecting the direction and intensity of the geomagnetic field, or measuring atmospheric pressure.

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IMUProUnit

Micropython Example:

import os, sys, io
import M5
from M5 import *
from hardware import *
from unit import IMUProUnit
import time

i2c0 = I2C(0, scl=Pin(1), sda=Pin(2), freq=100000)
imupro_0 = IMUProUnit(i2c0)

while True:
    print((str('Acc:') + str((imupro_0.get_accelerometer()))))
    print((str('Gryo:') + str((imupro_0.get_gyroscope()))))
    print((str('Magneto:') + str((imupro_0.get_magnetometer()))))
    print((str('Compass:') + str((imupro_0.get_compass()))))
    print((str('Attitude') + str((imupro_0.get_attitude()))))
    print((str('Temperature') + str((imupro_0.get_temperature()))))
    print((str('Pressure:') + str((imupro_0.get_pressure()))))
    time.sleep_ms(100)

UIFLOW2 Example:

example.png

unit-imu-pro-demo.m5f2

class IMUProUnit

Constructors

class IMUProUnit(i2c)

Create a IMUProUnit object

Parameters:

i2c – the I2C object.

UIFLOW2:

init.png

Methods

IMUProUnit.get_accelerometer()

Get the tuple of x, y, and z values of the accelerometer and acceleration vector in gravity units (9.81m/s^2).

  • Return: tuple: (float, float, float)

UIFLOW2:

get_accelerometer.png

IMUProUnit.get_gyroscope()

Get the tuple of x, y, and z values of the gyroscope and gyroscope vector in rad/sec.

  • Return: tuple: (float, float, float)

UIFLOW2:

get_gyroscope.png

IMUProUnit.get_magnetometer()

Get the tuple of x, y, and z values of the magnetometer and magnetometer vector in uT.

  • Return: tuple: (float, float, float)

UIFLOW2:

get_magnetometer.png

IMUProUnit.get_compass()

Get the compass heading value is in range of 0º ~ 360º.

  • Return: float: 0 ~ 360

UIFLOW2:

get_compass.png

IMUProUnit.get_attitude()

Get the attitude angles as yaw, pitch, and roll in degrees.

  • Return: tuple: (float, float, float)

UIFLOW2:

get_attitude.png

IMUProUnit.get_temperature()

Get the temperature value in degrees celsius from the BMP280 sensor.

  • Return: float: -40 ~ +85 °C

UIFLOW2:

get_temperature.png

IMUProUnit.get_pressure()

Get the pressure value in pascals from the BMP280 sensor.

  • Return: float: 300 ~ 1100 hPa

UIFLOW2:

get_pressure.png

IMUProUnit.set_accel_gyro_odr(accel_odr, gyro_odr)

Set the accelerometer and gyroscope output data rate(ODR): 0.78 Hz … 1.6 kHz (accelerometer) and 25 Hz … 6.4 kHz (gyroscope).

Parameters:

  • accel_odr – range of 0.78 Hz … 1.6 kHz.

  • gyro_odr – range of 25 Hz … 6.4 kHz.

UIFLOW2:

set_accel_gyro_odr.png

IMUProUnit.set_magnet_odr(magnet_odr)

Set the magnetometer output data rate(ODR): 2, 6, 8, 10(default), 15, 20, 25, 30Hz.

Parameters:

magnet_odr – range of 2Hz … 30Hz.

UIFLOW2:

set_magnet_odr.png

IMUProUnit.set_accel_range(accel_scale)

Set the accelerometer scale range.

Parameters:

accel_scale – scale range of ±2g, ±4g, ±8g and ±16g.

UIFLOW2:

set_accel_range.png

IMUProUnit.set_gyro_range(gyro_scale)

Set the gyroscope scale range.

Parameters:

gyro_scale – scale range of ±125 dps, ±250 dps, ±500 dps, ±1000 dps, and ±2000 dps.

UIFLOW2:

set_gyro_range.png

IMUProUnit.set_gyro_offsets(x, y, z)

Set the manual gyro calibrations offsets value

Parameters:

  • x – 0.0

  • y – 0.0

  • z – 0.0

UIFLOW2:

set_gyro_offsets.png