Add this somewhere at the end of your presentation.php
function sync() { $.ajax({url: "position", success: function(e){ Reveal.slide(e); } }); } if (!window.location.search.match( /master/gi ) ) { setInterval(sync,1000); Reveal.configure({ keyboard: { 13: null, 23: null, 32: null, 37: null, 38: null, 39: null, 40: null, 68: null } }); } Reveal.addEventListener( 'slidechanged', function(e) { $.ajax({ url: "write.php", type: "get", data: {"k":e.indexh} }); });
write.php
$fp = fopen('position', 'w+'); $k=$get["k"]; fwrite($fp, $k); fclose($fp);
presentation.php?master will control the presentation. A simple presentation.php even at a dozen locations will show it.