The Reddit Votelet is a system for getting real-time, real-world feedback of a user's interaction with Reddit.com. It uses several layers of applications to interpret a user's actions in a Web browser and pass on that event on to a microcontroller.
You click upvote, and something lights up. You click downvote, and something else lights up. You get a new orangered, and still another indicator illuminates. Check out the video. It's awesome, trust me.
This particular implementation uses the traffic light hack as a basis for relaying information, but it can also be implemented more simply by using LEDs (source available below).
mouseclickevent of all the upvote and downvote links on the page. It also checks for an orangered.
ruby-serialportgem required) (you will need to change the
Portconstant to match your serial port)
See the Traffic Light Hack Mark II site for more traffic-light-specific downloads.