AgoControl integration for Hunter Douglas shades.

Prior to running, set server in the hunterdouglas.conf file to the IP of the gateway.

This is the basics of the Hunter Douglas Gateway IP protocol. Each command is followed by a newline.

When you connect to the gateway using TCP/IP on port 522, it will return a line with a two character prefix that identifies responses to you with.

One can list all state from the gateway with $dat. This will return many lines and end with a line that starts with upd01-. The first two digits are client identifiers. After those prefixes there is an identifier for state. $cs indicates the name of a shade. $cp is followed by its id and its state. Other lines also exist but are not used by AgoHunterDouglas so are not yet well understood.

One can set the state of a shade by sending command $pss%s-04-%03 where the first substitution is the internal shade id and the second is the shade state. The state is a number between 0 and 255 where 0 means the shade is closed and 255 means the shade is open.