6 Commits

14 changed files with 380 additions and 201 deletions

View File

@@ -4,20 +4,21 @@
package frc.robot;
import frc.robot.constants.ArmConstants;
import frc.robot.constants.ManipulatorPivotConstants;
import frc.robot.constants.ClimberPivotConstants;
import frc.robot.constants.ElevatorConstants;
import frc.robot.constants.OIConstants;
import frc.robot.subsystems.Arm;
import frc.robot.subsystems.ManipulatorPivot;
import frc.robot.subsystems.ClimberPivot;
import frc.robot.subsystems.ClimberRollers;
import frc.robot.subsystems.Drivetrain;
import frc.robot.subsystems.Elevator;
import frc.robot.subsystems.Indexer;
import frc.robot.subsystems.Manipulator;
import com.pathplanner.lib.auto.AutoBuilder;
import com.pathplanner.lib.auto.NamedCommands;
import edu.wpi.first.math.MathUtil;
import edu.wpi.first.wpilibj.shuffleboard.BuiltInWidgets;
import edu.wpi.first.wpilibj.shuffleboard.Shuffleboard;
import edu.wpi.first.wpilibj.shuffleboard.ShuffleboardTab;
@@ -27,8 +28,6 @@ import edu.wpi.first.wpilibj2.command.Commands;
import edu.wpi.first.wpilibj2.command.button.CommandXboxController;
public class RobotContainer {
private Arm arm;
private ClimberPivot climberPivot;
private ClimberRollers climberRollers;
@@ -37,18 +36,16 @@ public class RobotContainer {
private Elevator elevator;
private Indexer indexer;
private Manipulator manipulator;
private ManipulatorPivot manipulatorPivot;
private CommandXboxController driver;
private CommandXboxController operator;
private SendableChooser<Command> autoChooser;
public RobotContainer() {
arm = new Arm();
climberPivot = new ClimberPivot();
climberRollers = new ClimberRollers();
@@ -57,10 +54,10 @@ public class RobotContainer {
elevator = new Elevator();
indexer = new Indexer();
manipulator = new Manipulator();
manipulatorPivot = new ManipulatorPivot();
driver = new CommandXboxController(OIConstants.kDriverControllerPort);
operator = new CommandXboxController(OIConstants.kOperatorControllerPort);
@@ -74,12 +71,9 @@ public class RobotContainer {
}
private void configureButtonBindings() {
arm.setDefaultCommand(
arm.goToSetpoint(0, 1)
);
//Default commands
climberPivot.setDefaultCommand(
climberPivot.goToAngle(0, 1)
climberPivot.runPivot(0)
);
climberRollers.setDefaultCommand(
@@ -99,12 +93,12 @@ public class RobotContainer {
elevator.runAssistedElevator(operator::getLeftY)
);
indexer.setDefaultCommand(
indexer.runIndexer(0)
manipulator.setDefaultCommand(
manipulator.defaultCommand()
);
manipulator.setDefaultCommand(
manipulator.runManipulator(0)
manipulatorPivot.setDefaultCommand(
manipulatorPivot.runAssistedPivot(operator::getRightY)
);
//Driver inputs
@@ -113,35 +107,39 @@ public class RobotContainer {
);
driver.rightTrigger().whileTrue(
manipulator.runManipulator(1)
manipulator.runManipulator(() -> 1, true)
);
driver.start().and(driver.back()).onTrue(
startingConfig()
);
//Operator inputs
operator.povUp().onTrue(
moveManipulator(
ElevatorConstants.kElevatorL4Position,
ArmConstants.kArmL4Position
ElevatorConstants.kL4Position,
ManipulatorPivotConstants.kL4Position
)
);
operator.povRight().onTrue(
moveManipulator(
ElevatorConstants.kElevatorL3Position,
ArmConstants.kArmL3Position
ElevatorConstants.kL3Position,
ManipulatorPivotConstants.kL3Position
)
);
operator.povLeft().onTrue(
moveManipulator(
ElevatorConstants.kElevatorL2Position,
ArmConstants.kArmL2Position
ElevatorConstants.kL2Position,
ManipulatorPivotConstants.kL2Position
)
);
operator.povDown().onTrue(
moveManipulator(
ElevatorConstants.kElevatorL1Position,
ArmConstants.kArmL1Position
ElevatorConstants.kL1Position,
ManipulatorPivotConstants.kL1Position
)
);
@@ -174,84 +172,140 @@ public class RobotContainer {
.withPosition(0, 0)
.withWidget(BuiltInWidgets.kComboBoxChooser);
sensorTab.addDouble("ElevatorPosition", elevator::getEncoderPosition)
sensorTab.addDouble("Elevator Position", elevator::getEncoderPosition)
.withSize(2, 1)
.withPosition(0, 0)
.withPosition(0, 1)
.withWidget(BuiltInWidgets.kTextView);
sensorTab.addDouble("ArmPosition", arm::getEncoderPosition)
sensorTab.addDouble("Manipulator Position", manipulatorPivot::getEncoderPosition)
.withSize(2, 1)
.withPosition(2, 1)
.withWidget(BuiltInWidgets.kTextView);
sensorTab.addDouble("Climber Pivot Position", climberPivot::getEncoderPosition)
.withSize(2, 1)
.withPosition(2, 0)
.withWidget(BuiltInWidgets.kTextView);
sensorTab.addBoolean("Coral Sensor", manipulator::getCoralBeamBreak)
.withSize(1, 1)
.withPosition(4, 1)
.withWidget(BuiltInWidgets.kBooleanBox);
sensorTab.addBoolean("Algae Sensor", manipulator::getAlgaePhotoSwitch)
.withSize(1, 1)
.withPosition(4, 0)
.withWidget(BuiltInWidgets.kBooleanBox);
}
public Command getAutonomousCommand() {
return autoChooser.getSelected();
}
//teleop routines
/**
* Moves the elevator and arm to the coral intake position, then runs the manipulator until collected
* @return Moves the elevator and arm, then intakes coral
*/
private Command coralIntakeRoutine() {
return moveManipulator(
ElevatorConstants.kElevatorCoralIntakePosition,
ArmConstants.kArmCoralIntakePosition
ElevatorConstants.kCoralIntakePosition,
ManipulatorPivotConstants.kCoralIntakePosition
)
.andThen(manipulator.runUntilCollected(1, true));
}
/**
* Moves the elevator and arm to the constant setpoints and runs the manipulator until collected
*
* @param l2 Is the algae on L2? (True = L2, False = L3)
* @return Moves the elevator and arm then intakes algae
*/
private Command algaeIntakeRoutine(boolean l2) {
return moveManipulator(
l2 ? ElevatorConstants.kElevatorL2AlgaePosition : ElevatorConstants.kElevatorL3AlgaePosition,
l2 ? ArmConstants.kArmL2AlgaePosition : ArmConstants.kArmL3AlgaePosition
l2 ? ElevatorConstants.kL2AlgaePosition : ElevatorConstants.kL3AlgaePosition,
l2 ? ManipulatorPivotConstants.kL2AlgaePosition : ManipulatorPivotConstants.kL3AlgaePosition
)
.andThen(manipulator.runUntilCollected(1, false));
}
/**
* Moves the elevator and arm in different order based on target positions
*
* @param elevatorPosition The target position of the elevator
* @param armPosition The target rotation of the arm
* @return Moves the elevator and arm to the setpoints using the most efficient path
*/
private Command moveManipulator(double elevatorPosition, double armPosition) {
// If the elevator current and target positions are above the brace, or the arm current and target position is in
// front of the brace, move together
if ((elevator.isMotionSafe() && elevator.isMotionSafe(elevatorPosition)) || (arm.isMotionSafe() && arm.isMotionSafe(armPosition))) {
if ((elevator.isMotionSafe() && elevator.isMotionSafe(elevatorPosition)) || (manipulatorPivot.isMotionSafe() && manipulatorPivot.isMotionSafe(armPosition))) {
return moveManipulatorUtil(elevatorPosition, armPosition, false, false);
// If the target position is behind the brace, and the arm is not behind the brace, move the arm to a safe position first,
// then the elevator, then the arm again
} else if (!arm.isMotionSafe(armPosition) && !arm.isMotionSafe()) {
return moveManipulatorUtil(elevatorPosition, ArmConstants.kArmSafeStowPosition, false, true)
.andThen(arm.goToSetpoint(armPosition, 2));
} else if (!manipulatorPivot.isMotionSafe(armPosition) && !manipulatorPivot.isMotionSafe()) {
return moveManipulatorUtil(elevatorPosition, ManipulatorPivotConstants.kArmSafeStowPosition, false, true)
.andThen(manipulatorPivot.goToSetpoint(armPosition, 2));
// If the target position is behind the brace, and the arm is behind the brace, move the elevator first, then the arm
} else if (!arm.isMotionSafe(armPosition) && arm.isMotionSafe()) {
} else if (!manipulatorPivot.isMotionSafe(armPosition) && manipulatorPivot.isMotionSafe()) {
return moveManipulatorUtil(elevatorPosition, armPosition, true, true);
// If the arm is behind the brace, move the arm first, then the elevator
} else if (!arm.isMotionSafe()) {
} else if (!manipulatorPivot.isMotionSafe()) {
return moveManipulatorUtil(elevatorPosition, armPosition, false, true);
// Catch all command that's safe regardless of arm and elevator positions
} else {
return moveManipulatorUtil(elevatorPosition, ArmConstants.kArmSafeStowPosition, false, true)
.andThen(arm.goToSetpoint(armPosition, 2));
return moveManipulatorUtil(elevatorPosition, ManipulatorPivotConstants.kArmSafeStowPosition, false, true)
.andThen(manipulatorPivot.goToSetpoint(armPosition, 2));
}
}
/**
* Moves the elevator and arm in customizeable ways
*
* @param elevatorPosition The target elevator position
* @param armPosition The target arm position
* @param elevatorFirst Does the elevator move first? (True = Elevator first, False = Arm first)
* @param sequential Does the elevator and arm move separately? (True = .andThen, False = .alongWith)
* @return Moves the elevator and arm to the setpoints
*/
private Command moveManipulatorUtil(double elevatorPosition, double armPosition, boolean elevatorFirst, boolean sequential) {
if (elevatorPosition <= ElevatorConstants.kBracePosition || elevatorPosition == 0) {
armPosition = MathUtil.clamp(
armPosition,
0,
ManipulatorPivotConstants.kRotationLimit
);
}
return Commands.either(
Commands.either(
elevator.goToSetpoint(elevatorPosition, 2).andThen(arm.goToSetpoint(armPosition, 2)),
elevator.goToSetpoint(elevatorPosition, 2).alongWith(arm.goToSetpoint(armPosition, 2)),
elevator.goToSetpoint(elevatorPosition, 2).andThen(manipulatorPivot.goToSetpoint(armPosition, 2)),
elevator.goToSetpoint(elevatorPosition, 2).alongWith(manipulatorPivot.goToSetpoint(armPosition, 2)),
() -> sequential
),
Commands.either(
arm.goToSetpoint(armPosition, 2).andThen(elevator.goToSetpoint(elevatorPosition, 2)),
arm.goToSetpoint(armPosition, 2).alongWith(elevator.goToSetpoint(elevatorPosition, 2)),
manipulatorPivot.goToSetpoint(armPosition, 2).andThen(elevator.goToSetpoint(elevatorPosition, 2)),
manipulatorPivot.goToSetpoint(armPosition, 2).alongWith(elevator.goToSetpoint(elevatorPosition, 2)),
() -> sequential
),
() -> elevatorFirst
);
}
/*
* A moveManipulator method that will guarantee a safe movement.
* Here in case we need want to skip moveManipulator debugging
/**
* Moves the arm and elevator in a safe way.
*
* @param elevatorPosition The target position of the elevator
* @param armPosition The target rotation of the arm
* @return Moves the elevator and arm to the setpoints
*/
@SuppressWarnings("unused")
private Command safeMoveManipulator(double elevatorPosition, double armPosition) {
return moveManipulatorUtil(elevatorPosition, ArmConstants.kArmSafeStowPosition, false, true)
.andThen(arm.goToSetpoint(armPosition, 2));
return moveManipulatorUtil(elevatorPosition, ManipulatorPivotConstants.kArmSafeStowPosition, false, true)
.andThen(manipulatorPivot.goToSetpoint(armPosition, 2));
}
private Command startingConfig() {
return moveManipulatorUtil(0, 0, false, true)
.alongWith(climberPivot.climb(ClimberPivotConstants.kClimberStartingPosition, .1));
}
}

View File

@@ -1,5 +1,7 @@
package frc.robot.constants;
import com.revrobotics.spark.config.SparkMaxConfig;
public class ClimberPivotConstants {
public static final int kPivotMotorID = 0;
@@ -10,4 +12,9 @@ public class ClimberPivotConstants {
public static final double kPIDControllerP = 0;
public static final double kPIDControllerI = 0;
public static final double kPIDControllerD = 0;
public static final double kClimberClimbPosition = 0;
public static final double kClimberStartingPosition = 0;
public static final SparkMaxConfig motorConfig = new SparkMaxConfig();
}

View File

@@ -1,5 +1,9 @@
package frc.robot.constants;
import com.revrobotics.spark.config.SparkMaxConfig;
public class ClimberRollersConstants {
public static final int kRollerMotorID = 0;
public static final SparkMaxConfig motorConfig = new SparkMaxConfig();
}

View File

@@ -33,17 +33,18 @@ public class ElevatorConstants {
public static final double kFeedForwardG = 0;
public static final double kFeedForwardV = 0;
public static final double kElevatorMaxVelocity = 0;
public static final double kMaxVelocity = 0;
public static final double kElevatorCoralIntakePosition = 0;
public static final double kElevatorL1Position = 0;
public static final double kElevatorL2Position = 0;
public static final double kElevatorL3Position = 0;
public static final double kElevatorL4Position = 0;
public static final double kElevatorL2AlgaePosition = 0;
public static final double kElevatorL3AlgaePosition = 0;
public static final double kElevatorBracePosition = 0;
public static final double kElevatorMaxHeight = 0;
public static final double kCoralIntakePosition = 0;
public static final double kL1Position = 0;
public static final double kL2Position = 0;
public static final double kL3Position = 0;
public static final double kL4Position = 0;
public static final double kL2AlgaePosition = 0;
public static final double kL3AlgaePosition = 0;
/**The position of the top of the elevator brace */
public static final double kBracePosition = 0;
public static final double kMaxHeight = 0;
// 1, 7, 10 are the defaults for these, change as necessary
public static final double kSysIDRampRate = 1;

View File

@@ -1,6 +0,0 @@
package frc.robot.constants;
public class IndexerConstants {
public static final int kIndexerMotorID = 0;
public static final int kIndexerBeamBreakID = 0;
}

View File

@@ -1,7 +1,11 @@
package frc.robot.constants;
import com.revrobotics.spark.config.SparkMaxConfig;
public class ManipulatorConstants {
public static final int kManipulatorMotorID = 0;
public static final int kCoralBeamBreakID = 0;
public static final int kAlgaeBeamBreakID = 0;
public static final SparkMaxConfig motorConfig = new SparkMaxConfig();
}

View File

@@ -13,13 +13,13 @@ import edu.wpi.first.math.util.Units;
import edu.wpi.first.wpilibj2.command.sysid.SysIdRoutine;
import edu.wpi.first.wpilibj2.command.sysid.SysIdRoutine.Config;
public class ArmConstants {
public class ManipulatorPivotConstants {
public static final int kArmMotorID = 0;
public static final int kCANcoderID = 0;
public static final int kMotorAmpsMax = 0;
public static final double kArmMaxVelocity = 0;
public static final double kPivotMaxVelocity = 0;
public static final double kPositionalP = 0;
public static final double kPositionalI = 0;
@@ -32,14 +32,17 @@ public class ArmConstants {
// TODO Is this reasonable?
public static final double kVelocityTolerance = Units.degreesToRadians(3) / 60;
public static final double kArmCoralIntakePosition = 0;
public static final double kArmL1Position = 0;
public static final double kArmL2Position = 0;
public static final double kArmL3Position = 0;
public static final double kArmL4Position = 0;
public static final double kArmL2AlgaePosition = 0;
public static final double kArmL3AlgaePosition = 0;
public static final double kCoralIntakePosition = 0;
public static final double kL1Position = 0;
public static final double kL2Position = 0;
public static final double kL3Position = 0;
public static final double kL4Position = 0;
public static final double kL2AlgaePosition = 0;
public static final double kL3AlgaePosition = 0;
/**The closest position to the elevator brace without hitting it */
public static final double kArmSafeStowPosition = 0;
/**The forward rotation limit of the arm */
public static final double kRotationLimit = 0;
public static final double kMagnetOffset = 0.0;
public static final double kAbsoluteSensorDiscontinuityPoint = 0.0;
@@ -66,7 +69,7 @@ public class ArmConstants {
static {
canCoderConfig.MagnetSensor.SensorDirection = SensorDirectionValue.CounterClockwise_Positive;
canCoderConfig.MagnetSensor.MagnetOffset = 0.0;
canCoderConfig.MagnetSensor.MagnetOffset = kMagnetOffset;
// TODO Need to do more reading on this setting, and how to properly offset the Arm so that horizontal is 0
//canCoderConfig.MagnetSensor.AbsoluteSensorDiscontinuityPoint = 0.5;

View File

@@ -2,9 +2,10 @@ package frc.robot.subsystems;
import com.revrobotics.RelativeEncoder;
import com.revrobotics.spark.SparkMax;
import com.revrobotics.spark.SparkBase.PersistMode;
import com.revrobotics.spark.SparkBase.ResetMode;
import com.revrobotics.spark.SparkLowLevel.MotorType;
import edu.wpi.first.math.controller.PIDController;
import edu.wpi.first.wpilibj.DigitalInput;
import edu.wpi.first.wpilibj2.command.Command;
import edu.wpi.first.wpilibj2.command.SubsystemBase;
@@ -17,23 +18,21 @@ public class ClimberPivot extends SubsystemBase {
private DigitalInput cageLimitSwitch;
private PIDController pidController;
public ClimberPivot() {
pivotMotor = new SparkMax(
ClimberPivotConstants.kPivotMotorID,
MotorType.kBrushless
);
pivotMotor.configure(
ClimberPivotConstants.motorConfig,
ResetMode.kResetSafeParameters,
PersistMode.kPersistParameters
);
neoEncoder = pivotMotor.getEncoder();
cageLimitSwitch = new DigitalInput(ClimberPivotConstants.kClimberLimitSwitchID);
pidController = new PIDController(
ClimberPivotConstants.kPIDControllerP,
ClimberPivotConstants.kPIDControllerI,
ClimberPivotConstants.kPIDControllerD
);
}
public Command runPivot(double speed) {
@@ -42,18 +41,29 @@ public class ClimberPivot extends SubsystemBase {
});
}
public Command goToAngle(double setpoint, double timeout) {
/**
* Runs the climber until it is at setpoint
*
* @param speed The speed at which the pivot runs
* @param setpoint The target position of the climber
* @return Sets the motor speed until at the target position
*/
public Command climb(double setpoint, double speed) {
return run(() -> {
pivotMotor.set(
pidController.calculate(
neoEncoder.getPosition(),
setpoint
)
);
}).withTimeout(timeout);
pivotMotor.set(speed);
}).until(() -> neoEncoder.getPosition() >= setpoint);
}
/**
* Returns the limit switch attached to the climber. Detects if the cage is present
*
* @return Is the cage in the climber
*/
public boolean getCageLimitSwitch() {
return cageLimitSwitch.get();
}
public double getEncoderPosition() {
return neoEncoder.getPosition();
}
}

View File

@@ -1,12 +1,15 @@
package frc.robot.subsystems;
import com.revrobotics.spark.SparkMax;
import com.revrobotics.spark.SparkBase.PersistMode;
import com.revrobotics.spark.SparkBase.ResetMode;
import com.revrobotics.spark.SparkLowLevel.MotorType;
import edu.wpi.first.wpilibj2.command.Command;
import edu.wpi.first.wpilibj2.command.SubsystemBase;
import frc.robot.constants.ClimberRollersConstants;
//TODO Figure out a way to detect if we're at the top of the cage
public class ClimberRollers extends SubsystemBase {
private SparkMax rollerMotor;
@@ -15,8 +18,20 @@ public class ClimberRollers extends SubsystemBase {
ClimberRollersConstants.kRollerMotorID,
MotorType.kBrushless
);
rollerMotor.configure(
ClimberRollersConstants.motorConfig,
ResetMode.kResetSafeParameters,
PersistMode.kPersistParameters
);
}
/**
* Runs the rollers at a set speed
*
* @param speed The speed in which the roller runs
* @return Runs the rollers at a set speed
*/
public Command runRoller(double speed) {
return run(() -> {
rollerMotor.set(speed);

View File

@@ -8,10 +8,12 @@ import com.revrobotics.spark.SparkBase.PersistMode;
import com.revrobotics.spark.SparkBase.ResetMode;
import com.revrobotics.spark.SparkLowLevel.MotorType;
import edu.wpi.first.math.MathUtil;
import edu.wpi.first.math.controller.ElevatorFeedforward;
import edu.wpi.first.math.controller.PIDController;
import edu.wpi.first.wpilibj.DigitalInput;
import edu.wpi.first.wpilibj2.command.Command;
import edu.wpi.first.wpilibj2.command.Commands;
import edu.wpi.first.wpilibj2.command.SubsystemBase;
import frc.robot.constants.ElevatorConstants;
@@ -76,6 +78,13 @@ public class Elevator extends SubsystemBase {
);
}
@Override
public void periodic() {
if (getBottomLimitSwitch()) {
encoder.setPosition(0);
}
}
/**
* Returns whether or not the motion is safe relative to the encoder's current position
* and the elevator brace position
@@ -94,27 +103,7 @@ public class Elevator extends SubsystemBase {
* @return Is the motion safe
*/
public boolean isMotionSafe(double motionTarget) {
return motionTarget > ElevatorConstants.kElevatorBracePosition;
}
/**
* A manual translation command that will move the elevator using a consistent velocity disregarding direction
*
* @param speed How fast the elevator moves
* @return Sets motor voltage to move the elevator relative to the speed parameter
*/
public Command runAssistedElevator(DoubleSupplier speed) {
return run(() -> {
double realSpeedTarget = speed.getAsDouble() * ElevatorConstants.kElevatorMaxVelocity;
double voltsOut = velocityController.calculate(
encoder.getVelocity(),
realSpeedTarget
) + feedForward.calculate(realSpeedTarget);
elevatorMotor1.setVoltage(voltsOut);
}).until(
() -> bottomLimitSwitch.get() || encoder.getPosition() >= ElevatorConstants.kElevatorMaxHeight);
return motionTarget > ElevatorConstants.kBracePosition;
}
/**
@@ -130,17 +119,61 @@ public class Elevator extends SubsystemBase {
}
/**
* Moves the elevator to a target destination (setpoint)
* A manual translation command that will move the elevator using a consistent velocity disregarding direction
*
* @param speed How fast the elevator moves
* @return Sets motor voltage to move the elevator relative to the speed parameter
*/
public Command runAssistedElevator(DoubleSupplier speed) {
return run(() -> {
double realSpeedTarget = speed.getAsDouble() * ElevatorConstants.kMaxVelocity;
double voltsOut = velocityController.calculate(
encoder.getVelocity(),
realSpeedTarget
) + feedForward.calculate(realSpeedTarget);
elevatorMotor1.setVoltage(voltsOut);
}).until(
() -> bottomLimitSwitch.get() || encoder.getPosition() >= ElevatorConstants.kMaxHeight);
}
/**
* Moves the elevator to a target destination (setpoint).
* If the setpoint is 0, the elevator will creep down to hit the limit switch
*
* @param setpoint Target destination of the subsystem
* @param timeout Time to achieve the setpoint before quitting
* @return Sets motor voltage to achieve the target destination
*/
public Command goToSetpoint(double setpoint, double timeout) {
double clampedSetpoint = MathUtil.clamp(
setpoint,
0,
ElevatorConstants.kMaxHeight
);
if (clampedSetpoint == 0) {
return run(() -> {
double voltsOut = positionController.calculate(
encoder.getPosition(),
setpoint
clampedSetpoint
) + feedForward.calculate(0);
elevatorMotor1.setVoltage(voltsOut);
}).until(
() -> positionController.atSetpoint() || bottomLimitSwitch.get()
).withTimeout(timeout)
.andThen(Commands.either(
runAssistedElevator(() -> 0),
runAssistedElevator(() -> -.2),
bottomLimitSwitch::get
)).withTimeout(timeout);
} else {
return run(() -> {
double voltsOut = positionController.calculate(
encoder.getPosition(),
clampedSetpoint
) + feedForward.calculate(0);
elevatorMotor1.setVoltage(voltsOut);
@@ -148,6 +181,7 @@ public class Elevator extends SubsystemBase {
() -> positionController.atSetpoint() || bottomLimitSwitch.get()
).withTimeout(timeout);
}
}
/**
* Returns the current encoder position

View File

@@ -1,36 +0,0 @@
package frc.robot.subsystems;
import com.revrobotics.spark.SparkMax;
import com.revrobotics.spark.SparkLowLevel.MotorType;
import edu.wpi.first.wpilibj.DigitalInput;
import edu.wpi.first.wpilibj2.command.Command;
import edu.wpi.first.wpilibj2.command.SubsystemBase;
import frc.robot.constants.IndexerConstants;
public class Indexer extends SubsystemBase {
private SparkMax indexerMotor;
private DigitalInput indexerBeamBreak;
public Indexer() {
indexerMotor = new SparkMax(
IndexerConstants.kIndexerMotorID,
MotorType.kBrushless
);
indexerBeamBreak = new DigitalInput(IndexerConstants.kIndexerBeamBreakID);
}
public Command runIndexer(double speed) {
return run(() -> {
indexerMotor.set(speed);
});
}
public Command indexCoral(double speed) {
return run(() -> {
indexerMotor.set(speed);
}).until(indexerBeamBreak::get);
}
}

View File

@@ -1,6 +1,10 @@
package frc.robot.subsystems;
import java.util.function.DoubleSupplier;
import com.revrobotics.spark.SparkMax;
import com.revrobotics.spark.SparkBase.PersistMode;
import com.revrobotics.spark.SparkBase.ResetMode;
import com.revrobotics.spark.SparkLowLevel.MotorType;
import edu.wpi.first.wpilibj.DigitalInput;
@@ -20,19 +24,65 @@ public class Manipulator extends SubsystemBase {
MotorType.kBrushless
);
manipulatorMotor.configure(
ManipulatorConstants.motorConfig,
ResetMode.kResetSafeParameters,
PersistMode.kPersistParameters
);
coralBeamBreak = new DigitalInput(ManipulatorConstants.kCoralBeamBreakID);
algaeBeamBreak = new DigitalInput(ManipulatorConstants.kAlgaeBeamBreakID);
}
public Command runManipulator(double speed) {
/**
* The default command for the manipulator that either stops the manipulator or slowly
* runs the manipulator to retain the algae
*
* @return Returns a command that sets the speed of the motor
*/
public Command defaultCommand() {
return run(() -> {
manipulatorMotor.set(speed);
manipulatorMotor.set(
algaeBeamBreak.get() ? 0.1 : 0
);
});
}
/**
* Runs the manipulator at a set speed with the direction based on the coral parameter
*
* @param speed The speed at which the manipulator runs
* @param coral Is the manipulator manipulating a coral? (True = Coral, False = Algae)
* @return Returns a command that sets the speed of the motor
*/
public Command runManipulator(DoubleSupplier speed, boolean coral) {
return run(() -> {
manipulatorMotor.set(
coral ? speed.getAsDouble() : speed.getAsDouble() * -1
);
});
}
/**
* Runs the manipulator until either the algae or coral beam break reads true
*
* @param speed The speed at which the manipulator is run
* @param coral Is the object a coral? (True = Coral, False = Algae)
* @return Returns a command that sets the speed of the motor
*/
public Command runUntilCollected(double speed, boolean coral) {
return run(() -> {
manipulatorMotor.set(coral ? speed : speed * -1);
manipulatorMotor.set(
coral ? speed : speed * -1
);
}).until(() -> coralBeamBreak.get() || algaeBeamBreak.get());
}
public boolean getCoralBeamBreak() {
return coralBeamBreak.get();
}
public boolean getAlgaePhotoSwitch() {
return algaeBeamBreak.get();
}
}

View File

@@ -8,14 +8,15 @@ import com.revrobotics.spark.SparkBase.PersistMode;
import com.revrobotics.spark.SparkBase.ResetMode;
import com.revrobotics.spark.SparkLowLevel.MotorType;
import edu.wpi.first.math.MathUtil;
import edu.wpi.first.math.controller.ArmFeedforward;
import edu.wpi.first.math.controller.PIDController;
import edu.wpi.first.math.util.Units;
import edu.wpi.first.wpilibj2.command.Command;
import edu.wpi.first.wpilibj2.command.SubsystemBase;
import frc.robot.constants.ArmConstants;
import frc.robot.constants.ManipulatorPivotConstants;
public class Arm extends SubsystemBase {
public class ManipulatorPivot extends SubsystemBase {
protected SparkMax armMotor;
private CANcoder canCoder;
@@ -25,34 +26,38 @@ public class Arm extends SubsystemBase {
private ArmFeedforward feedForward;
public Arm() {
public ManipulatorPivot() {
armMotor = new SparkMax(
ArmConstants.kArmMotorID,
ManipulatorPivotConstants.kArmMotorID,
MotorType.kBrushless
);
armMotor.configure(ArmConstants.motorConfig, ResetMode.kResetSafeParameters, PersistMode.kPersistParameters);
armMotor.configure(
ManipulatorPivotConstants.motorConfig,
ResetMode.kResetSafeParameters,
PersistMode.kPersistParameters
);
positionController = new PIDController(
ArmConstants.kPositionalP,
ArmConstants.kPositionalI,
ArmConstants.kPositionalD
ManipulatorPivotConstants.kPositionalP,
ManipulatorPivotConstants.kPositionalI,
ManipulatorPivotConstants.kPositionalD
);
// TODO: Generate constants for continuous input range based on CANcoder configuration?
positionController.enableContinuousInput(Units.degreesToRadians(-180), Units.degreesToRadians(179));
positionController.setTolerance(ArmConstants.kPositionalTolerance);
positionController.setTolerance(ManipulatorPivotConstants.kPositionalTolerance);
velocityController = new PIDController(
ArmConstants.kVelocityP,
ArmConstants.kVelocityI,
ArmConstants.kVelocityD
ManipulatorPivotConstants.kVelocityP,
ManipulatorPivotConstants.kVelocityI,
ManipulatorPivotConstants.kVelocityD
);
velocityController.setTolerance(ArmConstants.kVelocityTolerance);
velocityController.setTolerance(ManipulatorPivotConstants.kVelocityTolerance);
canCoder = new CANcoder(ArmConstants.kCANcoderID);
canCoder.getConfigurator().apply(ArmConstants.canCoderConfig);
canCoder = new CANcoder(ManipulatorPivotConstants.kCANcoderID);
canCoder.getConfigurator().apply(ManipulatorPivotConstants.canCoderConfig);
}
/**
@@ -73,13 +78,24 @@ public class Arm extends SubsystemBase {
* @return Is the motion safe
*/
public boolean isMotionSafe(double motionTarget) {
return motionTarget > ArmConstants.kArmSafeStowPosition;
return motionTarget > ManipulatorPivotConstants.kArmSafeStowPosition;
}
//manual command that keeps ouput speed consistent no matter the direction
public Command runArm(DoubleSupplier speed) {
/**
* A manual rotation command that will move the elevator using a consistent velocity disregarding direction
*
* @param speed The velocity at which the arm rotates
* @return Sets motor voltage to achieve the target velocity
*/
public Command runAssistedPivot(DoubleSupplier speed) {
double clampedSpeed = MathUtil.clamp(
speed.getAsDouble(),
-1,
1
);
return run(() -> {
double realSpeedTarget = speed.getAsDouble() * ArmConstants.kArmMaxVelocity;
double realSpeedTarget = clampedSpeed * ManipulatorPivotConstants.kPivotMaxVelocity;
double voltsOut = velocityController.calculate(
getEncoderVelocity(),
@@ -93,11 +109,24 @@ public class Arm extends SubsystemBase {
});
}
/**
* Moves the arm to a target destination (setpoint)
*
* @param setpoint Target destination of the subsystem
* @param timeout Time to achieve the setpoint before quitting
* @return Sets motor voltage to achieve the target destination
*/
public Command goToSetpoint(double setpoint, double timeout) {
double clampedSetpoint = MathUtil.clamp(
setpoint,
0,
ManipulatorPivotConstants.kRotationLimit
);
return run(() -> {
double voltsOut = positionController.calculate(
getEncoderPosition(),
setpoint
clampedSetpoint
) + feedForward.calculate(
getEncoderPosition(),
getEncoderVelocity()
@@ -107,10 +136,20 @@ public class Arm extends SubsystemBase {
}).until(positionController::atSetpoint).withTimeout(timeout);
}
/**
* Returns the CANCoder's position in radians
*
* @return CANCoder's position in radians
*/
public double getEncoderPosition() {
return Units.rotationsToRadians(canCoder.getAbsolutePosition().getValueAsDouble());
}
/**
* Returns the CANCoder's velocity in radians per second
*
* @return CANCoder's velocity in radians per second
*/
public double getEncoderVelocity() {
return Units.rotationsToRadians(canCoder.getVelocity().getValueAsDouble());
}

View File

@@ -10,29 +10,29 @@ import edu.wpi.first.units.measure.MutVoltage;
import edu.wpi.first.wpilibj.RobotController;
import edu.wpi.first.wpilibj2.command.Command;
import edu.wpi.first.wpilibj2.command.sysid.SysIdRoutine;
import frc.robot.constants.ArmConstants;
import frc.robot.subsystems.Arm;
import frc.robot.constants.ManipulatorPivotConstants;
import frc.robot.subsystems.ManipulatorPivot;
public class ArmSysID extends Arm {
public class ManipulatorPivotSysID extends ManipulatorPivot {
private MutVoltage appliedVoltage;
private MutAngle armPosition;
private MutAngle pivotPosition;
private MutAngularVelocity armVelocity;
private MutAngularVelocity pivotVelocity;
private SysIdRoutine routine;
public ArmSysID() {
public ManipulatorPivotSysID() {
super();
appliedVoltage = Volts.mutable(0);
armPosition = Radians.mutable(0);
pivotPosition = Radians.mutable(0);
armVelocity = RadiansPerSecond.mutable(0);
pivotVelocity = RadiansPerSecond.mutable(0);
routine = new SysIdRoutine(
ArmConstants.kSysIDConfig,
ManipulatorPivotConstants.kSysIDConfig,
new SysIdRoutine.Mechanism(
armMotor::setVoltage,
(log) -> {
@@ -40,10 +40,10 @@ public class ArmSysID extends Arm {
.voltage(appliedVoltage.mut_replace(
armMotor.get() * RobotController.getBatteryVoltage(), Volts
))
.angularPosition(armPosition.mut_replace(
.angularPosition(pivotPosition.mut_replace(
getEncoderPosition(), Radians
))
.angularVelocity(armVelocity.mut_replace(
.angularVelocity(pivotVelocity.mut_replace(
getEncoderVelocity(), RadiansPerSecond
));
},