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6 changed files with 152 additions and 173 deletions

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@ -8,6 +8,7 @@ import frc.robot.constants.ManipulatorPivotConstants;
import frc.robot.constants.ClimberPivotConstants;
import frc.robot.constants.ElevatorConstants;
import frc.robot.constants.OIConstants;
import frc.robot.constants.ElevatorConstants.ElevatorPositions;
import frc.robot.subsystems.ManipulatorPivot;
import frc.robot.subsystems.Vision;
import frc.robot.subsystems.ClimberPivot;
@ -26,7 +27,9 @@ import edu.wpi.first.wpilibj.shuffleboard.ShuffleboardTab;
import edu.wpi.first.wpilibj.smartdashboard.SendableChooser;
import edu.wpi.first.wpilibj2.command.Command;
import edu.wpi.first.wpilibj2.command.Commands;
import edu.wpi.first.wpilibj2.command.WaitUntilCommand;
import edu.wpi.first.wpilibj2.command.button.CommandXboxController;
import edu.wpi.first.wpilibj2.command.button.Trigger;
public class RobotContainer {
private ClimberPivot climberPivot;
@ -53,14 +56,14 @@ public class RobotContainer {
climberRollers = new ClimberRollers();
manipulator = new Manipulator();
//vision = new Vision(drivetrain::getGyroValue);
drivetrain = new Drivetrain();
elevator = new Elevator();
elevator = new Elevator(manipulator::getAlgaePhotoswitch);
//elevator = new ElevatorSysID();
manipulator = new Manipulator();
manipulatorPivot = new ManipulatorPivot();
driver = new CommandXboxController(OIConstants.kDriverControllerPort);
@ -104,11 +107,6 @@ public class RobotContainer {
)
);
elevator.setDefaultCommand(
elevator.maintainPosition()
);
manipulatorPivot.setDefaultCommand(
manipulatorPivot.maintainPosition()
);
@ -147,28 +145,28 @@ public class RobotContainer {
//Operator inputs
operator.povUp().onTrue(
safeMoveManipulator(
ElevatorConstants.kL4Position,
ElevatorPositions.kL4,
ManipulatorPivotConstants.kL4Position
)
);
operator.povRight().onTrue(
safeMoveManipulator(
ElevatorConstants.kL3Position,
ElevatorPositions.kL3,
ManipulatorPivotConstants.kL3Position
)
);
operator.povLeft().onTrue(
safeMoveManipulator(
ElevatorConstants.kL2Position,
ElevatorPositions.kL2,
ManipulatorPivotConstants.kL2Position
)
);
operator.povDown().onTrue(
safeMoveManipulator(
ElevatorConstants.kL1Position,
ElevatorPositions.kL1,
ManipulatorPivotConstants.kL1Position
)
);
@ -185,8 +183,12 @@ public class RobotContainer {
algaeIntakeRoutine(false)
);
operator.y().whileTrue(
elevator.goToSetpoint(() -> ElevatorConstants.kL2Position)
operator.y().onTrue(
elevator.setTargetPosition(ElevatorPositions.kL2)
);
new Trigger(() -> Math.abs(MathUtil.applyDeadband(operator.getLeftY(), .05)) > .05).onTrue(
elevator.runManualElevator(operator::getLeftY)
);
@ -272,7 +274,7 @@ public class RobotContainer {
@SuppressWarnings("unused")
private Command coralIntakeRoutine() {
return moveManipulator(
ElevatorConstants.kCoralIntakePosition,
ElevatorPositions.kCoralIntake,
ManipulatorPivotConstants.kCoralIntakePosition
)
.andThen(manipulator.runUntilCollected(() -> .5));
@ -287,7 +289,7 @@ public class RobotContainer {
@SuppressWarnings("unused")
private Command algaeIntakeRoutine(boolean l2) {
return moveManipulator(
l2 ? ElevatorConstants.kL2AlgaePosition : ElevatorConstants.kL3AlgaePosition,
l2 ? ElevatorPositions.kL2Algae : ElevatorPositions.kL3Algae,
l2 ? ManipulatorPivotConstants.kL2AlgaePosition : ManipulatorPivotConstants.kL3AlgaePosition
)
.andThen(manipulator.runUntilCollected(() -> 1));
@ -300,10 +302,10 @@ public class RobotContainer {
* @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) {
private Command moveManipulator(ElevatorPositions 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)) || (manipulatorPivot.isMotionSafe() && manipulatorPivot.isMotionSafe(armPosition))) {
if ((elevator.isMotionSafe() && elevator.isMotionSafe(elevatorPosition.getPosition())) || (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
@ -332,7 +334,7 @@ public class RobotContainer {
* @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) {
private Command moveManipulatorUtil(ElevatorPositions elevatorPosition, double armPosition, boolean elevatorFirst, boolean sequential) {
/*if (elevatorPosition <= ElevatorConstants.kBracePosition || elevatorPosition == 0) {
armPosition = MathUtil.clamp(
@ -344,13 +346,16 @@ public class RobotContainer {
return Commands.either(
Commands.either(
elevator.goToSetpoint(() -> elevatorPosition).andThen(manipulatorPivot.goToSetpoint(() -> armPosition)),
elevator.goToSetpoint(() -> elevatorPosition).alongWith(manipulatorPivot.goToSetpoint(() -> armPosition)),
elevator.setTargetPosition(elevatorPosition).andThen(
new WaitUntilCommand(elevator::atSetpoint),
manipulatorPivot.goToSetpoint(() -> armPosition)
),
elevator.setTargetPosition(elevatorPosition).alongWith(manipulatorPivot.goToSetpoint(() -> armPosition)),
() -> sequential
),
Commands.either(
manipulatorPivot.goToSetpoint(() -> armPosition).andThen(elevator.goToSetpoint(() -> elevatorPosition)),
manipulatorPivot.goToSetpoint(() -> armPosition).alongWith(elevator.goToSetpoint(() -> elevatorPosition)),
manipulatorPivot.goToSetpoint(() -> armPosition).andThen(elevator.setTargetPosition(elevatorPosition)),
manipulatorPivot.goToSetpoint(() -> armPosition).alongWith(elevator.setTargetPosition(elevatorPosition)),
() -> sequential
),
() -> elevatorFirst
@ -358,18 +363,24 @@ public class RobotContainer {
}
@SuppressWarnings("unused")
private Command manipulatorSafeTravel(double elevatorPosition, double armPosition, boolean isL4){
private Command manipulatorSafeTravel(ElevatorPositions elevatorPosition, double armPosition, boolean isL4){
if(!isL4){
return Commands.sequence(
manipulatorPivot.goToSetpoint(() -> ManipulatorPivotConstants.kPivotSafeStowPosition),
elevator.goToSetpoint(() -> elevatorPosition),
elevator.setTargetPosition(elevatorPosition),
new WaitUntilCommand(elevator::atSetpoint),
manipulatorPivot.goToSetpoint(() -> armPosition));
}else{
return Commands.sequence(
manipulatorPivot.goToSetpoint(() -> ManipulatorPivotConstants.kPivotSafeStowPosition),
elevator.goToSetpoint(() -> elevatorPosition).until(() -> elevator.getEncoderPosition() > ElevatorConstants.kL4TransitionPosition),
Commands.parallel( manipulatorPivot.goToSetpoint(() -> armPosition)), elevator.goToSetpoint(() -> elevatorPosition));
elevator.setTargetPosition(elevatorPosition),
new WaitUntilCommand(() -> elevator.getEncoderPosition() > ElevatorPositions.kL4Transition.getPosition()),
Commands.parallel(
manipulatorPivot.goToSetpoint(() -> armPosition),
elevator.setTargetPosition(elevatorPosition).andThen(new WaitUntilCommand(elevator::atSetpoint))
)
);
}
}
@ -382,14 +393,14 @@ public class RobotContainer {
* @return Moves the elevator and arm to the setpoints
*/
@SuppressWarnings("unused")
private Command safeMoveManipulator(double elevatorPosition, double armPosition) {
private Command safeMoveManipulator(ElevatorPositions elevatorPosition, double armPosition) {
return moveManipulatorUtil(elevatorPosition, ManipulatorPivotConstants.kPivotSafeStowPosition, false, true)
.andThen(manipulatorPivot.goToSetpoint(() -> armPosition));
}
@SuppressWarnings("unused")
private Command startingConfig() {
return moveManipulatorUtil(0, 0, false, true)
return moveManipulatorUtil(ElevatorPositions.kStartingPosition, 0, false, true)
.alongWith(climberPivot.climb(ClimberPivotConstants.kClimberStartingPosition, .1));
}
}

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@ -11,6 +11,34 @@ import edu.wpi.first.wpilibj2.command.sysid.SysIdRoutine;
import edu.wpi.first.wpilibj2.command.sysid.SysIdRoutine.Config;
public class ElevatorConstants {
public enum ElevatorControlMode {
kPID,
kManualMaintain
}
public enum ElevatorPositions {
kStartingPosition(0),
kCoralIntake(0),
kL1(0),
kL2(14.5),
kL2Algae(22),
kL3(29),
kL3Algae(39),
kL4(53),
kL4Transition(40),
kProcessor(4);
private double position;
private ElevatorPositions(double position) {
this.position = position;
}
public double getPosition() {
return position;
}
}
public static final int kElevatorMotor1ID = 8;
public static final int kElevatorMotor2ID = 6;
@ -36,18 +64,13 @@ public class ElevatorConstants {
public static final double kFeedForwardG = (0.95 + 0.2)/2; /* kG too high + kG too low / 2 */ // calculated value 0.6
public static final double kFeedForwardV = 0.12; // calculated value 0.12
public static final double kFeedForwardAlgaeHeldS = 0;
public static final double kFeedForwardAlgaeHeldG = 0;
public static final double kFeedForwardAlgaeHeldV = 0;
public static final double kMaxVelocity = 150.0; // 120 inches per second (COOKING) calculated max is 184 in/s
public static final double kMaxAcceleration = 240; // 400 inches per second^2 (also COOKING) calculated max is 600 in/s^2
public static final double kCoralIntakePosition = 0;
public static final double kL1Position = 0;
public static final double kL2Position = 14.5;
public static final double kL3Position = 29.0;
public static final double kL4Position = 53.0;
public static final double kL4TransitionPosition = 40.0;
public static final double kL2AlgaePosition = 22.0;
public static final double kL3AlgaePosition = 39.0;
public static final double kProcessorPosition = 4.0;
/**The position of the top of the elevator brace */
public static final double kBracePosition = 0;
public static final double kMaxHeight = 47.5; //actual is 53

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@ -4,7 +4,9 @@ import com.revrobotics.spark.config.SparkMaxConfig;
public class ManipulatorConstants {
public static final int kManipulatorMotorID = 12;
public static final int kCoralBeamBreakID = 2;
public static final int kAlgaePhotoswitchID = 3;
public static final SparkMaxConfig motorConfig = new SparkMaxConfig();
}

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@ -1,5 +1,6 @@
package frc.robot.subsystems;
import java.util.function.BooleanSupplier;
import java.util.function.DoubleSupplier;
import com.revrobotics.RelativeEncoder;
@ -15,6 +16,8 @@ import edu.wpi.first.wpilibj.DigitalInput;
import edu.wpi.first.wpilibj2.command.Command;
import edu.wpi.first.wpilibj2.command.SubsystemBase;
import frc.robot.constants.ElevatorConstants;
import frc.robot.constants.ElevatorConstants.ElevatorControlMode;
import frc.robot.constants.ElevatorConstants.ElevatorPositions;
public class Elevator extends SubsystemBase {
protected SparkMax elevatorMotor1;
@ -22,13 +25,20 @@ public class Elevator extends SubsystemBase {
protected RelativeEncoder encoder;
private BooleanSupplier hasAlgae;
private DigitalInput bottomLimitSwitch;
private PIDController pidController;
private ElevatorFeedforward feedForward;
private ElevatorFeedforward algaeHeldFeedForward;
private ElevatorControlMode mode;
private ElevatorPositions currentTargetPosition;
public Elevator() {
public Elevator(BooleanSupplier hasAlgae) {
elevatorMotor1 = new SparkMax(
ElevatorConstants.kElevatorMotor1ID,
MotorType.kBrushless
@ -53,6 +63,8 @@ public class Elevator extends SubsystemBase {
encoder = elevatorMotor1.getEncoder();
this.hasAlgae = hasAlgae;
bottomLimitSwitch = new DigitalInput(
ElevatorConstants.kBottomLimitSwitchID
);
@ -71,6 +83,16 @@ public class Elevator extends SubsystemBase {
ElevatorConstants.kFeedForwardG,
ElevatorConstants.kFeedForwardV
);
algaeHeldFeedForward = new ElevatorFeedforward(
ElevatorConstants.kFeedForwardAlgaeHeldS,
ElevatorConstants.kFeedForwardAlgaeHeldG,
ElevatorConstants.kFeedForwardAlgaeHeldV
);
mode = ElevatorControlMode.kPID;
currentTargetPosition = ElevatorPositions.kCoralIntake;
}
@Override
@ -78,6 +100,27 @@ public class Elevator extends SubsystemBase {
if (!getBottomLimitSwitch()) {
encoder.setPosition(0);
}
if(mode == ElevatorControlMode.kPID) {
if (!pidController.atSetpoint()) {
elevatorMotor1.setVoltage(
pidController.calculate(
encoder.getPosition(),
currentTargetPosition.getPosition()
) + (hasAlgae.getAsBoolean() ? algaeHeldFeedForward.calculate(0) : feedForward.calculate(0))
);
} else {
if (hasAlgae.getAsBoolean()) {
elevatorMotor1.setVoltage(
algaeHeldFeedForward.calculate(0)
);
} else {
elevatorMotor1.setVoltage(
feedForward.calculate(0)
);
}
}
}
}
/**
@ -108,7 +151,10 @@ public class Elevator extends SubsystemBase {
* @return Sets motor voltage to translate the elevator and maintain position
*/
public Command runManualElevator(DoubleSupplier speed) {
return run(() -> {
return startRun(() -> {
mode = ElevatorControlMode.kManualMaintain;
},
() -> {
double desired = speed.getAsDouble();
if(Math.abs(MathUtil.applyDeadband(desired, .05)) > 0) {
@ -116,145 +162,33 @@ public class Elevator extends SubsystemBase {
speed.getAsDouble()
);
} else {
elevatorMotor1.setVoltage(feedForward.calculate(0));
if (hasAlgae.getAsBoolean()) {
elevatorMotor1.setVoltage(
algaeHeldFeedForward.calculate(0)
);
} else {
elevatorMotor1.setVoltage(
feedForward.calculate(0)
);
}
}
});
}
/**
* A command that will use the feed forward to hold up the elevator.
* Used for feed forward tuning.
*
* @return Sets motor voltage based on feed forward calculation.
*/
public Command maintainPosition() {
public Command setTargetPosition(ElevatorPositions position) {
return runOnce(() -> {
if (mode == ElevatorControlMode.kManualMaintain) {
pidController.reset();
mode = ElevatorControlMode.kPID;
}
return startRun(() -> {
//pidController.reset();
// pidController.setSetpoint(encoder.getPosition());
},
() -> {
/*if (!pidController.atSetpoint()) {
elevatorMotor1.setVoltage(
pidController.calculate(
encoder.getPosition()
) + feedForward.calculate(0)
);
} else {
elevatorMotor1.setVoltage(
feedForward.calculate(0)
);
}*/
elevatorMotor1.setVoltage(
feedForward.calculate(0)
);
currentTargetPosition = position;
});
/*
elevatorMotor1.setVoltage(
pidController.calculate(
encoder.getPosition(),
clampedSetpoint
) + feedForward.calculate(0)
);
*/
/*
if (!pidController.atSetpoint()) {
elevatorMotor1.setVoltage(
pidController.calculate(
encoder.getPosition(),
clampedSetpoint
) + feedForward.calculate(0)
);
} else {
elevatorMotor1.setVoltage(
feedForward.calculate(0)
);
}
});*/
}
/**
* Moves the elevator 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(DoubleSupplier setpoint) {
return startRun(() -> {
pidController.setSetpoint(setpoint.getAsDouble());
pidController.reset();
},
() -> {
if (!pidController.atSetpoint()) {
elevatorMotor1.setVoltage(
pidController.calculate(
encoder.getPosition(),
setpoint.getAsDouble()
) + feedForward.calculate(0)
);
} else {
elevatorMotor1.setVoltage(
feedForward.calculate(0)
);
}
}).until(() -> pidController.atSetpoint());
/*
elevatorMotor1.setVoltage(
pidController.calculate(
encoder.getPosition(),
clampedSetpoint
) + feedForward.calculate(0)
);
*/
/*
if (!pidController.atSetpoint()) {
elevatorMotor1.setVoltage(
pidController.calculate(
encoder.getPosition(),
clampedSetpoint
) + feedForward.calculate(0)
);
} else {
elevatorMotor1.setVoltage(
feedForward.calculate(0)
);
}
});*/
public boolean atSetpoint() {
return pidController.atSetpoint();
}
/*
if(encoder.getPosition() >= setpoint.getAsDouble()){
elevatorMotor1.setVoltage(
pidControllerUp.calculate(
encoder.getPosition(),
clampedSetpoint
) + feedForward.calculate(pidControllerUp.getSetpoint().velocity)
);
}else if(encoder.getPosition() <= setpoint.getAsDouble()){
elevatorMotor1.setVoltage(
pidControllerDown.calculate(
encoder.getPosition(),
clampedSetpoint
) + feedForward.calculate(pidControllerDown.getSetpoint().velocity)
);
}
*/
/**
* Returns the current encoder position

View File

@ -16,6 +16,7 @@ public class Manipulator extends SubsystemBase {
private SparkMax manipulatorMotor;
private DigitalInput coralBeamBreak;
private DigitalInput algaePhotoswitch;
public Manipulator() {
manipulatorMotor = new SparkMax(
@ -30,6 +31,7 @@ public class Manipulator extends SubsystemBase {
);
coralBeamBreak = new DigitalInput(ManipulatorConstants.kCoralBeamBreakID);
algaePhotoswitch = new DigitalInput(ManipulatorConstants.kAlgaePhotoswitchID);
}
/**
@ -90,4 +92,8 @@ public class Manipulator extends SubsystemBase {
public boolean getCoralBeamBreak() {
return coralBeamBreak.get();
}
public boolean getAlgaePhotoswitch() {
return algaePhotoswitch.get();
}
}

View File

@ -2,6 +2,9 @@ package frc.robot.subsystems.sysid;
import static edu.wpi.first.units.Units.Inches;
import static edu.wpi.first.units.Units.Volts;
import java.util.function.BooleanSupplier;
import static edu.wpi.first.units.Units.InchesPerSecond;
import edu.wpi.first.units.measure.MutDistance;
@ -22,8 +25,8 @@ public class ElevatorSysID extends Elevator {
private SysIdRoutine routine;
public ElevatorSysID() {
super();
public ElevatorSysID(BooleanSupplier hasAlgae) {
super(hasAlgae);
appliedVoltage = Volts.mutable(0);
@ -38,7 +41,7 @@ public class ElevatorSysID extends Elevator {
(log) -> {
log.motor("elevatorMotor1")
.voltage(appliedVoltage.mut_replace(
elevatorMotor1.get() * RobotController.getBatteryVoltage(), Volts
getMotor1(), Volts
))
.linearPosition(elevatorPosition.mut_replace(
encoder.getPosition(), Inches