Code (Swift)

Create a file called Thumbstick and insert the following code. Run your code. Move the thumbstick to see the output change.

NOTE: The Thumbstick uses Channels to distinguish the vertical and horizontal directions. We set Channels to access different sensors of the same type in a Phidget.

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You will need to add three Labels.

  
import Cocoa
//Add Phidgets Library
import Phidget22Swift

class ViewController: NSViewController {

    @IBOutlet weak var vAxisLabel: NSTextField!
    @IBOutlet weak var hAxisLabel: NSTextField!
    @IBOutlet weak var buttonStateLabel: NSTextField!
    
    //Create
    let verticalAxis = VoltageRatioInput()
    let horizontalAxis = VoltageRatioInput()
    let button = DigitalInput()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        do{
            //Subscribe to events
            let _ = verticalAxis.voltageRatioChange.addHandler(onVerticalAxisChange)
            let _ = horizontalAxis.voltageRatioChange.addHandler(onHorizontalAxisChange)
            let _ = button.stateChange.addHandler(onStateChange)
            
            //Address
	    try verticalAxis.setChannel(0)
            try horizontalAxis.setChannel(1)
            
            //Open
            try verticalAxis.open()
            try horizontalAxis.open()
            try button.open()
            
        }catch{
            print(error)
        }
    }
    
    func onVerticalAxisChange(sender:VoltageRatioInput, voltageRatio: Double){
        DispatchQueue.main.async {
	    //Use information from your Phidget to change label
            self.vAxisLabel.stringValue = "Vertical: " + String(voltageRatio)
        }
    }
    
    func onHorizontalAxisChange(sender:VoltageRatioInput, voltageRatio: Double){
        DispatchQueue.main.async {
	    //Use information from your Phidget to change label
            self.hAxisLabel.stringValue = "Horizontal: " + String(voltageRatio)
        }
    }
    
    func onStateChange(sender:DigitalInput, state: Bool){
        DispatchQueue.main.async {
	    //Use information from your Phidget to change label
            self.buttonStateLabel.stringValue = "Button State: " + String(state)
        }
    } 
}