qrcode 15s
diff --git a/www/js/qrcode.js b/www/js/qrcode.js
index 51b2aa1..2b06b32 100644
--- a/www/js/qrcode.js
+++ b/www/js/qrcode.js
@@ -12,7 +12,7 @@
         app.loadQrcode();
         setInterval(function () {
             window.location.reload();
-        },100000);
+        },15000);
 
         brightness = cordova.plugins.brightness;
         if(brightness){