Thats the thing, they do work on titans, you need thhe Rasperry PI instead of the BBB, i lieve in sweden i can get this boards ease
The controller itself is not much worth a lot of money. For TITAN You can use any Jupiter controller with 4 or 6 data cable socket.
But you need Adapter plate for PI and this is rare and expensive. The first 10 pieces of adapter plate already-made and sold for 0.5 BTC piece and they are better than the originals.
Well, here is how the Titan bridge boards blow up: