This example uses OpenLayers v10.9.0. The latest is v.
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#### Device Orientation

device 1 orientation 2 gyronorm 1

#####

α : ``
β : ``
γ : ``

Listen to DeviceOrientation events.

This example shows how to track changes in device orientation. gyronorm.js library is used to access and normalize the events from the browser.

##### main.js

    import Map from 'ol/Map.js';
    import View from 'ol/View.js';
    import TileLayer from 'ol/layer/Tile.js';
    import {toRadians} from 'ol/math.js';
    import OSM from 'ol/source/OSM.js';

    const view = new View({
      center: [0, 0],
      zoom: 2,
    });
    const map = new Map({
      layers: [
        new TileLayer({
          source: new OSM(),
        }),
      ],
      target: 'map',
      view: view,
    });

    function el(id) {
      return document.getElementById(id);
    }

    const gn = new GyroNorm();

    gn.init().then(
      function () {
        gn.start(function (event) {
          const center = view.getCenter();
          const resolution = view.getResolution();
          const alpha = toRadians(event.do.alpha);
          const beta = toRadians(event.do.beta);
          const gamma = toRadians(event.do.gamma);

          el('alpha').innerText = alpha + ' [rad]';
          el('beta').innerText = beta + ' [rad]';
          el('gamma').innerText = gamma + ' [rad]';

          center[0] -= resolution * gamma * 25;
          center[1] += resolution * beta * 25;

          view.setCenter(center);
        });
      },
      function (e) {
        el('unsupported').innerText =
          typeof e === 'string' ? e : 'Could not initialize sensors';
      },
    );

##### index.html

    <!DOCTYPE html>
    <html lang="en">
      <head>
        <meta charset="UTF-8">
        <title>Device Orientation</title>
        <link rel="stylesheet" href="node_modules/ol/ol.css">
        <style>
          .map {
            width: 100%;
            height: 400px;
          }
        </style>
      </head>
      <body>
        <div id="map" class="map"></div>
        <p>
          <div id="unsupported" style="background-color: lightcoral; text-align: center;"></div>
          <div>α : <code id="alpha"></code></div>
          <div>β : <code id="beta"></code></div>
          <div>γ : <code id="gamma"></code></div>
        </p>

        <script src="https://cdn.jsdelivr.net/npm/gyronorm@2.0.6/dist/gyronorm.complete.min.js"></script>
        <script type="module" src="main.js"></script>
      </body>
    </html>

##### package.json

    {
      "name": "device-orientation",
      "dependencies": {
        "ol": "10.9.0"
      },
      "devDependencies": {
        "vite": "^3.2.3"
      },
      "scripts": {
        "start": "vite",
        "build": "vite build"
      }
    }