The original software was a java package I wrote in a language called processing. I used this a lot for software I wrote my senior year of college and have found it quite helpful and simple. Since then, they have extended their capabilities into processingjs, enabling the code to be run very well online.
Here's a basic breakdown of how the software works. At the top of the screen you have a timer. At the top right are three buttons, START, STOP, and RESET (that should have obvious functions). They will only appear if the mouse cursor hovers over them, allowing the screen to look less cluttered.
On the left and right you have spaces for two competitors. Barely visible indicators will allow you to award and deduct points, advantages, and penalties. The alpha values (transparency) of these "buttons" can be changed by using the UP and DOWN arrows on your keyboard. If they are not visible then hold the UP key until they are visible. If you wish them to be less visible (to reduce clutter for spectators) then simply hit the DOWN key until you are satisfied.
You can access the scoreboard HERE.
If you'd like, you can also download a local version that runs as a Java app. In general it performs better and looks a bit cleaner. Note that you'll need Java and that I've only tested this particular version with Windows 8. The download is available HERE
This is very much a work in progress (one that I don't get enough time to work on unfortunately. Please, if you have any questions, comments, concerns, bugs to report, or ideas on how to change the functionality, email me at jm@undocumented-feature.com.
NOTE: The large empty circle in the middle of the program originally housed a logo. For obvious reasons I've removed it. I'm thinking about finding an easy way for people to upload their own straight online, but that'll be on the backburner for the time being.
A bit about me
My name is Jamal Mahboob. I'm a software engineer living and training BJJ in Northern Virginia. I just recently (currently actually, as of this writing) spent 10 weeks in Rio training at Gordo's academy staying with Connection Rio and loved every second of it. Check it out at Rio de Jamal Go!. Me and my buddy also run a business (which barely does anything), the webspace for which is currently hosting this very scoreboard. Check that out too, I at least put more than 15 minutes into the main page Undocumented Feature, Inc.