The user interface
The user interface is a html webpage using Mobiscroll to format the scrolling wheels, which are used to set the score. The webpage is hosted from a Raspberry PI linux computer installed in the scoreboard, and is accessed using a mobile device such as a phone or tablet.
There is an admin interface which can be used to reboot or shutdown the raspberry pi
How the scoreboard looks
Two season in, and it still works! From close up it is difficult to make out the score, but from the pitch it looks great.