p (needs beep.wav)</button><br>
<button onclick="testVibrate()">Vibrate</button><br>
<button onclick="testVibrate(5000)">Vibrate 5000 ms</button><br>

<h2>Storage</h2>
<button onclick="openDatabaseTest()">Open SQL database</button><br>
<button onclick="dbTransactionTest()">Execute some SQL</button><br>
Results:<br>
<div id="results_div"></div>