design.md

Broad Design

                                 +----------+
                                 | Actuator |
 +--------+    +--------+       /|  Module  |\
 |   Web  |    |  Rules |------' +----------+ \
 | Server |    | Server |------.               `> TCP to
 +--------+    +--------+       \ +--------+  .>  device
       \          /              \| Sensor | /
        \        /                | Module |/
         ________                 +--------+
        (        )
        (  Redis )
        (   DB   )
        (        )
        `--------'