In VSCode, hit CTRL+SHIFT+P and select "WPILib: Manage Vendor Libraries". Select "Install new libraries (offline)" and paste the following URL: https://storage.googleapis.com/grapple-frc-maven/libgrapplefrc2024.json
#include "Robot.h"
#include <iostream>
void Robot::RobotInit() {
lc = new grpl::LaserCan(0);
// Optionally initialise the settings of the LaserCAN, if you haven't already done so in GrappleHook
lc->set_ranging_mode(grpl::LaserCanRangingMode::Long);
lc->set_timing_budget(grpl::LaserCanTimingBudget::TimingBudget100ms);
lc->set_roi(grpl::LaserCanROI{ 8, 8, 16, 16 });
}
void Robot::RobotPeriodic() {
std::optional<grpl::LaserCanMeasurement> measurement = lc->get_measurement();
if (measurement.has_value() && measurement.value().status == grpl::LASERCAN_STATUS_VALID_MEASUREMENT) {
std::cout << "The target is " << measurement.value().distance_mm << "mm away!" << std::endl;
} else {
std::cout << "Oh no! The target is out of range, or we can't get a reliable measurement!" << std::endl;
// You can still use distance_mm in here, if you're ok tolerating a clamped value or an unreliable measurement.
}
}
void Robot::AutonomousInit() {}
void Robot::AutonomousPeriodic() {}
void Robot::TeleopInit() {}
void Robot::TeleopPeriodic() {}
void Robot::DisabledInit() {}
void Robot::DisabledPeriodic() {}
void Robot::TestInit() {}
void Robot::TestPeriodic() {}
#ifndef RUNNING_FRC_TESTS
int main() {
return frc::StartRobot<Robot>();
}
#endif
LaserCAN - FRC Example (Java)
Install the Vendor Library:
In VSCode, hit CTRL+SHIFT+P and select "WPILib: Manage Vendor Libraries". Select "Install new libraries (offline)" and paste the following URL: https://storage.googleapis.com/grapple-frc-maven/libgrapplefrc2024.json
Use it!
package frc.robot;
import au.grapplerobotics.LaserCan;
import au.grapplerobotics.ConfigurationFailedException;
import edu.wpi.first.wpilibj.TimedRobot;
public class Robot extends TimedRobot {
private LaserCan lc;
@Override
public void robotInit() {
lc = new LaserCan(0);
// Optionally initialise the settings of the LaserCAN, if you haven't already done so in GrappleHook
try {
lc.setRangingMode(LaserCan.RangingMode.SHORT);
lc.setRegionOfInterest(new LaserCan.RegionOfInterest(8, 8, 16, 16));
lc.setTimingBudget(LaserCan.TimingBudget.TIMING_BUDGET_33MS);
} catch (ConfigurationFailedException e) {
System.out.println("Configuration failed! " + e);
}
}
@Override
public void robotPeriodic() {
LaserCan.Measurement measurement = lc.getMeasurement();
if (measurement != null && measurement.status == LaserCan.LASERCAN_STATUS_VALID_MEASUREMENT) {
System.out.println("The target is " + measurement.distance_mm + "mm away!");
} else {
System.out.println("Oh no! The target is out of range, or we can't get a reliable measurement!");
// You can still use distance_mm in here, if you're ok tolerating a clamped value or an unreliable measurement.
}
}
@Override
public void autonomousInit() {}
@Override
public void autonomousPeriodic() {}
@Override
public void teleopInit() {}
@Override
public void teleopPeriodic() {}
@Override
public void disabledInit() {}
@Override
public void disabledPeriodic() {}
@Override
public void testInit() {}
@Override
public void testPeriodic() {}
}