Getting Accelerometer data

Hi Developers, 

I’m currently working on a project that requires access to both accelerometer and gyroscope data. To get started, I’ve been testing the sample code provided on your developer site (see https://developer.garmin.com/connect-iq/core-topics/sensors/). 

However, I’m encountering an issue: I’m not seeing any output for the raw x, y, and z-axis samples from the accelerometer. Despite multiple attempts, the accelHistoryCallback doesn’t seem to be triggered, and no sensor data is printed to the console.

Below is a simplified version of the code I’m using for testing. I would greatly appreciate any insights or guidance on what might be going wrong, as I’ve been troubleshooting this for over a week without success.

Thank you for your time and patience!

import Toybox.Lang;
import Toybox.System;
import Toybox.WatchUi;
import Toybox.Graphics;
import Toybox.Timer;
import Toybox.Sensor;
import Toybox.Application;
import Toybox.Activity;
import Toybox.ActivityRecording;
import Toybox.FitContributor;

class sDelegate extends WatchUi.BehaviorDelegate {
    var _accele;
    
    function initialize() {
        BehaviorDelegate.initialize();
        

    }

    function onSelect() as Boolean {
        _accele = new MyAccelHistoryClass();
        _accele.enableAccel();
        //_accele.disableAccel();
        return true;
    }


}

class MyAccelHistoryClass
{
    private var _samplesX = null;
    private var _samplesY = null;
    private var _samplesZ = null;

    // Initializes the view and registers for accelerometer data
    public function enableAccel() as Void {
        //var maxSampleRate = Sensor.getMaxSampleRate();
        System.println("enableAccel");

         // initialize accelerometer to request the maximum amount of data possible
        var options = {:period => 4, :sampleRate => 5, :enableAccelerometer => true};
        try {
            Sensor.registerSensorDataListener(method(:accelHistoryCallback), options);
            System.println("Try to register");
        }
        catch(e) {
            System.println("Error: "+e.getErrorMessage());
        }
    }

    // Prints acclerometer data that is recevied from the system
    public function accelHistoryCallback(sensorData as Sensor.SensorData) as Void {
        _samplesX = sensorData.accelerometerData.x;
        _samplesY = sensorData.accelerometerData.y;
        _samplesZ = sensorData.accelerometerData.z;

        System.println("Raw samples, X axis: " + _samplesX);
        System.println("Raw samples, Y axis: " + _samplesY);
        System.println("Raw samples, Z axis: " + _samplesZ);
    }

    public function disableAccel() as Void {
        Sensor.unregisterSensorDataListener();
        System.println("disableAccel");
    }
}