The PiLite is a very ingenious add-on that comes fully assembled. Just plug it in to the Pi’s GPIO port and ISS-Above will use it to display information about the ISS. My beta version of the code merely uses this as a scrolling display – however I have plans to do a little more creative things including some animations. However I don’t know how long it will take me to complete that part of the work – so don’t buy it just for that right now.
I can only find UK suppliers of this item currently.