I just wanted to announce that I've made a BACnet webserver using the awesome BACnet4J library.
(Consequently, it's entirely open source!) :mrgreen:

Here is a quick presentation on how to run and use it:
[youtube]http://www.youtube.com/watch?v=oVlNwsU8CIw[/youtube]

However, I did not write it in java... I wrote it in Clojure!
The advantages are shown in the REPL page, where you can define and use commands on-the-fly.

I might end up rewriting some parts in Clojure (such as the [url=https://github.com/Frozenlock/bacure/blob/master/src/bacure/read_properties.clj]read-properties functions),
but for now it's overwhelmingly BACnet4J :wink:

The source is here: https://github.com/Frozenlock/wacnet
And the compiled version: https://hvac.io/docs/wacnet

Cheers!