Simple FRC RoboRio test project to read 2 encoders and print distances to system out console. Enable Automation mode on drive station to start the Autonomous command
You can see "Messages Tab" in the Driver station, like described here : https://wpilib.screenstepslive.com/s/currentCS/m/driver_station/l/144976-frc-driver-station-powered-by-ni-labview
See under https://github.com/georon/SimpleTestFRCencoder/tree/master/TestFRCencoder2/src/org/usfirst/frc4252/TestFRCencoder2: RobotMap.java subsystems/Subsystem1.java commands/AutonomousCommand.java