Lousy keypad design for automatic curtains

Found in the This is Broken Flickr pool:

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I am in Las Vegas for a conference this week. The hotel is really nice, but I encountered this bizarre keypad to work the curtains in the room.

There is no natural mapping between the buttons and their functions. I went through quite a bit of trial & error before figuring it out. And the problem is that even once you figure it out, it's not very logical.

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