[Alan Anderson]

Use the Servo example (Launch LabVIEW, click the Support tab, click "Find FRC examples..." and look for Servo.lvproj under the FRC Robotics->Actuators folder). Play with the servo angle numbers until you get the gearbox to shift appropriately. Record those numbers; your code will use them to set the servo angle when you want to shift between high and low gear.

What physical controls do you want the driver to use in order to shift gears?