EchoStar is planning on expanding its set top range firmly into the smart home with the new Sage home controller and device ecosystem. The company was teasing the unit, which is designed to plug into an existing pay-TV set top, but has so far not decided on a final specification or business model. Vice President of Engineering David Lett talked us through Sage at IBC, and said that the company was targeting a launch sometime in the first half of 2015. The box itself is not a full sized set top, but a little larger than something like a Roku or Apple TV. It features HDMI In and Out, an Ethernet port and 2 USB ports – which will support…