allwpilib/wpilibcExamples/src/main/cpp/examples/GearsBot/include/subsystems/Wrist.h

/*----------------------------------------------------------------------------*/
/* Copyright (c) 2017-2020 FIRST. All Rights Reserved.                        */
/* Open Source Software - may be modified and shared by FRC teams. The code   */
/* must be accompanied by the FIRST BSD license file in the root directory of */
/* the project.                                                               */
/*----------------------------------------------------------------------------*/

#pragma once

#include <frc/AnalogPotentiometer.h>
#include <frc/PWMVictorSPX.h>
#include <frc2/command/PIDSubsystem.h>

/**
 * The wrist subsystem is like the elevator, but with a rotational joint instead
 * of a linear joint.
 */
class Wrist : public frc2::PIDSubsystem {
 public:
  Wrist();

  /**
   * The log method puts interesting information to the SmartDashboard.
   */
  void Log();

  /**
   * Use the potentiometer as the PID sensor. This method is automatically
   * called by the subsystem.
   */
  double GetMeasurement() override;

  /**
   * Use the motor as the PID output. This method is automatically called
   * by the subsystem.
   */
  void UseOutput(double output, double setpoint) override;

  /**
   * Log the data periodically. This method is automatically called
   * by the subsystem.
   */
  void Periodic() override;

 private:
  frc::PWMVictorSPX m_motor{6};
  double m_setpoint = 0;

// Conversion value of potentiometer varies between the real world and
// simulation
#ifndef SIMULATION
  frc::AnalogPotentiometer m_pot{3, -270.0 / 5};
#else
  frc::AnalogPotentiometer m_pot{3};  // Defaults to degrees
#endif

  static constexpr double kP_real = 1;
  static constexpr double kP_simulation = 0.05;
};