Need help with conveyor belt programming

[CavbotRyche]

Trying to get the programming in our robot finished and we are struggling. Here is the program. We are new and not very experienced any help or advice would be awesome.




import edu.wpi.first.wpilibj.Joystick;
import edu.wpi.first.wpilibj.RobotDrive;
import edu.wpi.first.wpilibj.RobotDrive.MotorType;
import edu.wpi.first.wpilibj.SampleRobot;
import edu.wpi.first.wpilibj.Timer;

/**
* This is a demo program showing how to use Mecanum control with the RobotDrive class.
*/
public class Buttontest extends SampleRobot {

RobotDrive robotDrive;
Joystick stick;

// Channels for the wheels
final int frontLeftChannel = 0;
final int rearLeftChannel = 1;
final int frontRightChannel = 2;
final int rearRightChannel = 3;

// The channel on the driver station that the joystick is connected to
final int joystickChannel = 3;
private Object conveyorMotor;
private Object joystick;
private Object set;

public Buttontest() {
robotDrive = new RobotDrive(frontLeftChannel, rearLeftChannel, frontRightChannel, rearRightChannel);
robotDrive.setExpiration(0.1);

stick = new Joystick(joystickChannel);
}


/**
* Runs the motors with Mecanum drive.
*/
public void operatorControl() {
robotDrive.setSafetyEnabled(true);
while (isOperatorControl() && isEnabled()) {

// Use the joystick X axis for lateral movement, Y axis for forward movement, and Z axis for rotation.
// This sample does not use field-oriented drive, so the gyro input is set to zero.
robotDrive.arcadeDrive(-stick.getY(), -stick.getX());
Timer.delay(0.005); // wait 5ms to avoid hogging CPU cycles
}
}
//Conveyor Belt
boolean belt = false;
boolean toggle = true;

if (toggle && Button) {
toggle = false;
if (belt) {
belt= false;
conveyorMotor.set(1);
}else{
belt= true;
conveyorMotor.set(0);
}
}else if(belt == FALSE){
toggle = true;
}

[notmattlythgoe]

Just reposting this in code tags for readability purposes. To use code tags place a [/code] at the end and a at the beginning.

Am I correct in assuming you are getting syntax errors?

[code]
import edu.wpi.first.wpilibj.Joystick;
import edu.wpi.first.wpilibj.RobotDrive;
import edu.wpi.first.wpilibj.RobotDrive.MotorType;
import edu.wpi.first.wpilibj.SampleRobot;
import edu.wpi.first.wpilibj.Timer;

/**
* This is a demo program showing how to use Mecanum control with the RobotDrive class.
*/
public class Buttontest extends SampleRobot {

RobotDrive robotDrive;
Joystick stick;

// Channels for the wheels
final int frontLeftChannel = 0;
final int rearLeftChannel = 1;
final int frontRightChannel = 2;
final int rearRightChannel = 3;

// The channel on the driver station that the joystick is connected to
final int joystickChannel = 3;
private Object conveyorMotor;
private Object joystick;
private Object set;

public Buttontest() {
robotDrive = new RobotDrive(frontLeftChannel, rearLeftChannel, frontRightChannel, rearRightChannel);
robotDrive.setExpiration(0.1);

stick = new Joystick(joystickChannel);
}


/**
* Runs the motors with Mecanum drive.
*/
public void operatorControl() {
robotDrive.setSafetyEnabled(true);
while (isOperatorControl() && isEnabled()) {

// Use the joystick X axis for lateral movement, Y axis for forward movement, and Z axis for rotation.
// This sample does not use field-oriented drive, so the gyro input is set to zero.
robotDrive.arcadeDrive(-stick.getY(), -stick.getX());
Timer.delay(0.005); // wait 5ms to avoid hogging CPU cycles
}
}

//Conveyor Belt
boolean belt = false;
boolean toggle = true;

if (toggle && Button) {
toggle = false;
if (belt) {
belt= false;
conveyorMotor.set(1);
}else{
belt= true;
conveyorMotor.set(0);
}
}else if(belt == FALSE){
toggle = true;
}

[CavbotRyche]

Thank you for doing that! Did not know how to. We have our robot driving with this code but the conveyor motor is not responding to joystick button commands. We are using a Victor 888 as a servo and want button 3 and 4 to be used for up and down movement on our Logitech Extreme 3D Pro.

[TFleig78]

Looks like you need to put the conveyor code within the operatorControl method.
Also you need to use the joystick method getRawButton() in order to get the state of a button.
The updated code below should work better.



import edu.wpi.first.wpilibj.Joystick;
import edu.wpi.first.wpilibj.RobotDrive;
import edu.wpi.first.wpilibj.RobotDrive.MotorType;
import edu.wpi.first.wpilibj.SampleRobot;
import edu.wpi.first.wpilibj.Timer;

/**
* This is a demo program showing how to use Mecanum control with the RobotDrive class.
*/
public class Buttontest extends SampleRobot {

RobotDrive robotDrive;
Joystick stick;

// Channels for the wheels
final int frontLeftChannel = 0;
final int rearLeftChannel = 1;
final int frontRightChannel = 2;
final int rearRightChannel = 3;

// The channel on the driver station that the joystick is connected to
final int joystickChannel = 3;
private Object conveyorMotor;
private Object joystick;
private Object set;

public Buttontest() {
robotDrive = new RobotDrive(frontLeftChannel, rearLeftChannel, frontRightChannel, rearRightChannel);
robotDrive.setExpiration(0.1);

stick = new Joystick(joystickChannel);
}


/**
* Runs the motors with Mecanum drive.
*/
public void operatorControl() {
robotDrive.setSafetyEnabled(true);
while (isOperatorControl() && isEnabled()) {

// Use the joystick X axis for lateral movement, Y axis for forward movement, and Z axis for rotation.
// This sample does not use field-oriented drive, so the gyro input is set to zero.
robotDrive.arcadeDrive(-stick.getY(), -stick.getX());


if (stick.getRawButton(3)) {//if button 3 is pressed go full speed up
conveyorMotor.set(1);
}
else if (stick.getRawButton(4)) {//button 4, full speed down
conveyorMotor.set(-1);
}
else{
conveyorMotor.set(0); //no button pressed, stop
}


Timer.delay(0.005); // wait 5ms to avoid hogging CPU cycles
}
}


}

[CavbotRyche]

I will try your suggestions at our next meeting. I am also playing with Labview. I will keep you updated.