MPU9250_I2C (community library)

Summary

Name Value
Name MPU9250_I2C
Version 0.0.3
Installs 1580
Author Juan David Velasquez Rosero jdvr1994@hotmail.com
URL https://github.com/jdvr1994/MPU9250PhotonLibrary
Repository https://github.com/jdvr1994/MPU9250PhotonLibrary.git
Download .tar.gz
All Versions 0.0.3, 0.0.2, 0.0.1

An Implementation of Mpu9250 Library for the Particle Photon

Example Build Testing

Device OS Version:

This table is generated from an automated build. Success only indicates that the code compiled successfully.

Library Read Me

This content is provided by the library maintainer and has not been validated or approved.

MPU9250Library

This is a library of MPU9250 devices (Inertial and Magnetic Array Sensors) for Particle Photon

Supported MPU9250 devices

Usage

Set up the hardware:

  • A MPU9250 device with I2C Protocol

Flash the mpu9250 example.

Adapt it to your needs while keeping this general structure:

MPU9250 margSensor();
int16_t dataSensor[10];

void setup() {
margSensor.begin();
}
void loop() {
margSensor.Read9Axis(dataSensor);
// The sensor values is stored in dataSensor[x] as follows:
// dataSensor[0] ~ dataSensor[2] (Acceleration X Axis - Acceleration Y Axis - Acceleration Z Axis)
// dataSensor[3] (Temperature)
// dataSensor[4] ~ dataSensor[6] (AngularRate X Axis - AngularRate Y Axis - AngularRate Z Axis)
// dataSensor[7] ~ dataSensor[9] ( MagneticComponent X Axis - MagneticComponent Y Axis - MagneticComponent Z Axis)
}

Documentation

MPU9250
// IMPORTANT: Create dataSensor array for to store all readings
int16_t dataSensor[10];
begin

margSensor.begin();

Sets up the the operating mode of mpu9250 devices.

getGyroOffsets
int16_t GyroOffsets[3]; //we will save the readings of the offsets in this array
margSensor.getGyroOffsets(GyroOffsets);
Serial.printlnf("GyroOffset X:  %d", GyroOffsets[0]);
Serial.printlnf("GyroOffset Y:  %d", GyroOffsets[1]);
Serial.printlnf("GyroOffset Z:  %d", GyroOffsets[2]);

This function allows us to read the offsets gyroscope Register and store them in the pointer GyroOffsets

getAccelOffsets
int16_t AccelOffsets[3]; //we will save the readings of the offsets in this array
margSensor.getAccelOffsets(AccelOffsets);
Serial.printlnf("AccelOffset X:  %d", AccelOffsets[0]);
Serial.printlnf("AccelOffset Y:  %d", AccelOffsets[1]);
Serial.printlnf("AccelOffset Z:  %d", AccelOffsets[2]);

This function allows us to read the offsets accelerometer Register and store them in the pointer AccelOffsets

setGyroOffsetX
setGyroOffsetY
setGyroOffsetZ
int16_t gxOffset = 543;
int16_t gyOffset = 25;
int16_t gzOffset = -78;

margSensor.setGyroOffsetX(gxOffset);
margSensor.setGyroOffsetY(gyOffset);
margSensor.setGyroOffsetZ(gzOffset);

These functions set up gyroscope offset register.

setAccelOffsetX
setAccelOffsetY
setAccelOffsetZ
int16_t axOffset = 2890;
int16_t ayOffset = -13125;
int16_t azOffset = -768;

margSensor.setAccelOffsetX(axOffset);
margSensor.setAccelOffsetY(ayOffset);
margSensor.setAccelOffsetZ(azOffset);

These functions set up accelerometer offset register.

setGyroScale
/* ============================
Select Gyroscope Scale:
0 = ±250dps =
1 = ±500 dps =
2 = ±1000 dps =
3 = ±2000 dps =
===============================*/
margSensor.setGyroScale(3);// +-2000 dps

This function set up gyroscope scale register.

setAccelScale
/* ============================
Select Accelerometer scale:
0 = ±2g
1 = ±4g
2 = ±8g
3 = ±16g
===============================*/
margSensor.setAccelScale(1);// +-4g

This function set up accelerometer scale register.

Nuances

References

License

Copyright 2018-2022 JDVR, Juan David Velasquez Rosero

Released under the LGPL license

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