a) should be able to turn on all audio (receiver) and video (dvd/xbox/projector) equipment with a single remote button push and additionally tune them all to the right channel
b) be able to create and control lighting scenaries (For example, when the movie starts then turn off all in-ceiling lights, dim the under soffit low voltage lights to 10%, turn off the rope lights, dim the screen column lights to 50%, turn off the two on screen lights). These lighting macros will be created for different situations such as movie starting, movie ending and interval etc.,
c) a distributed remote IR system since all the equipment is going to be hidden behind a wall
So, based on the above requirements, I have designed a solution using the following components.
1) Harmony 880 remote - key component that allows to create 'activities' and provides the ability to send IR commands adn control multiple equipment with a single remote click.
2) X10 PowerLinc Controller - to create and control the lighting scene macros
3) IR X10 Command Control - to convert IR signals from the remote to X10 trigger signal (sent to X10 powerlinc controller to trigger a scene)
4) Micro IR sensor -- sits on the front screen wall receiveing IR signals from the harmony remote and sending them over the connected cable to the IR distribution block hidden inside the equipment cabinet.
5) IR Emitter block - receives IR signal from the Micro IR sensor and distributes individual audio video equipement via the connected IR emitters.
6) Stick on IR emitters - connects to the IR emitter block on one end and to individual IR equipment on other end thus distributing the IR signal from the emitter block to the equipment.
Here is the system block diagram showing all these components in action in my HT room:
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