Good morning,
I have a liftmaster 8850 with the 828LM wifi adapter. I use the app from my android and it works well. Now for my question, in my barn is an older liftmaster unit with the 811lm remote. It controls a stable door with no other electronic aids; no trip lights or warning sensors. What would it take to operate this unit via wifi like my 8850. Basically what device do I need to "tell" the operator to open, then reverse operation?
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