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SensorBNO055IMU.java
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SensorBNO055IMU.java
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/* Copyright (c) 2017 FIRST. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted (subject to the limitations in the disclaimer below) provided that
* the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* Neither the name of FIRST nor the names of its contributors may be used to endorse or
* promote products derived from this software without specific prior written permission.
*
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS
* LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.firstinspires.ftc.robotcontroller.external.samples;
import com.qualcomm.hardware.bosch.BNO055IMU;
import com.qualcomm.hardware.bosch.JustLoggingAccelerationIntegrator;
import com.qualcomm.robotcore.eventloop.opmode.Disabled;
import com.qualcomm.robotcore.eventloop.opmode.LinearOpMode;
import com.qualcomm.robotcore.eventloop.opmode.TeleOp;
import org.firstinspires.ftc.robotcore.external.Func;
import org.firstinspires.ftc.robotcore.external.navigation.Acceleration;
import org.firstinspires.ftc.robotcore.external.navigation.AngleUnit;
import org.firstinspires.ftc.robotcore.external.navigation.AxesOrder;
import org.firstinspires.ftc.robotcore.external.navigation.AxesReference;
import org.firstinspires.ftc.robotcore.external.navigation.Orientation;
import org.firstinspires.ftc.robotcore.external.navigation.Position;
import org.firstinspires.ftc.robotcore.external.navigation.Velocity;
import java.util.Locale;
/**
* {@link SensorBNO055IMU} gives a short demo on how to use the BNO055 Inertial Motion Unit (IMU) from AdaFruit.
*
* Use Android Studio to Copy this Class, and Paste it into your team's code folder with a new name.
* Remove or comment out the @Disabled line to add this opmode to the Driver Station OpMode list
*
* @see <a href="http://www.adafruit.com/products/2472">Adafruit IMU</a>
*/
@TeleOp(name = "Sensor: BNO055 IMU", group = "Sensor")
@Disabled // Comment this out to add to the opmode list
public class SensorBNO055IMU extends LinearOpMode
{
//----------------------------------------------------------------------------------------------
// State
//----------------------------------------------------------------------------------------------
// The IMU sensor object
BNO055IMU imu;
// State used for updating telemetry
Orientation angles;
Acceleration gravity;
//----------------------------------------------------------------------------------------------
// Main logic
//----------------------------------------------------------------------------------------------
@Override public void runOpMode() {
// Set up the parameters with which we will use our IMU. Note that integration
// algorithm here just reports accelerations to the logcat log; it doesn't actually
// provide positional information.
BNO055IMU.Parameters parameters = new BNO055IMU.Parameters();
parameters.angleUnit = BNO055IMU.AngleUnit.DEGREES;
parameters.accelUnit = BNO055IMU.AccelUnit.METERS_PERSEC_PERSEC;
parameters.calibrationDataFile = "BNO055IMUCalibration.json"; // see the calibration sample opmode
parameters.loggingEnabled = true;
parameters.loggingTag = "IMU";
parameters.accelerationIntegrationAlgorithm = new JustLoggingAccelerationIntegrator();
// Retrieve and initialize the IMU. We expect the IMU to be attached to an I2C port
// on a Core Device Interface Module, configured to be a sensor of type "AdaFruit IMU",
// and named "imu".
imu = hardwareMap.get(BNO055IMU.class, "imu");
imu.initialize(parameters);
// Set up our telemetry dashboard
composeTelemetry();
// Wait until we're told to go
waitForStart();
// Start the logging of measured acceleration
imu.startAccelerationIntegration(new Position(), new Velocity(), 1000);
// Loop and update the dashboard
while (opModeIsActive()) {
telemetry.update();
}
}
//----------------------------------------------------------------------------------------------
// Telemetry Configuration
//----------------------------------------------------------------------------------------------
void composeTelemetry() {
// At the beginning of each telemetry update, grab a bunch of data
// from the IMU that we will then display in separate lines.
telemetry.addAction(new Runnable() { @Override public void run()
{
// Acquiring the angles is relatively expensive; we don't want
// to do that in each of the three items that need that info, as that's
// three times the necessary expense.
angles = imu.getAngularOrientation(AxesReference.INTRINSIC, AxesOrder.ZYX, AngleUnit.DEGREES);
gravity = imu.getGravity();
}
});
telemetry.addLine()
.addData("status", new Func<String>() {
@Override public String value() {
return imu.getSystemStatus().toShortString();
}
})
.addData("calib", new Func<String>() {
@Override public String value() {
return imu.getCalibrationStatus().toString();
}
});
telemetry.addLine()
.addData("heading", new Func<String>() {
@Override public String value() {
return formatAngle(angles.angleUnit, angles.firstAngle);
}
})
.addData("roll", new Func<String>() {
@Override public String value() {
return formatAngle(angles.angleUnit, angles.secondAngle);
}
})
.addData("pitch", new Func<String>() {
@Override public String value() {
return formatAngle(angles.angleUnit, angles.thirdAngle);
}
});
telemetry.addLine()
.addData("grvty", new Func<String>() {
@Override public String value() {
return gravity.toString();
}
})
.addData("mag", new Func<String>() {
@Override public String value() {
return String.format(Locale.getDefault(), "%.3f",
Math.sqrt(gravity.xAccel*gravity.xAccel
+ gravity.yAccel*gravity.yAccel
+ gravity.zAccel*gravity.zAccel));
}
});
}
//----------------------------------------------------------------------------------------------
// Formatting
//----------------------------------------------------------------------------------------------
String formatAngle(AngleUnit angleUnit, double angle) {
return formatDegrees(AngleUnit.DEGREES.fromUnit(angleUnit, angle));
}
String formatDegrees(double degrees){
return String.format(Locale.getDefault(), "%.1f", AngleUnit.DEGREES.normalize(degrees));
}
}