Connect a PlayStation DS4 controller to your device and click on 'Connect' to interact with the virtual controller. If you don't have a DS4 or would just like to see it in operation check out this video.
Requires a browser with WebHID support. USB only recommended for now due to poor performance and feature limitations on Bluetooth.
Implemented as a reusable Web Component in Vanilla JS with zero dependencies based on original work here. Controller image courtesy of Wikimedia Commons. Try it out over on glitch.