У вашего броузера проблема в совместимости с HTML5
This is an Arduino based USB volume control that uses USB HID (Human Interface Device) to talk to the operating system. It will adjust the volume, mute, minimise all the windows and add some predefined text. NicoHood Library: https://github.com/NicoHood/HID Encoder library - https://www.pjrc.com/teensy/td_libs_Encoder.html Code: http://www.davidjwatts.com/youtube/HID-volume-control.zip It turns out that Likes actually help the channel, so if you want please click the thumbs up. google.com/+DavidWatts twitter.com/mrdavidjwatts davidjwatts.com