create hard wired remote garage door opener? Answered
Backstory (feel free to skip)
So, my grandparents live in an apartment building and they have to get a daily visit by a nurse for a condition grandma has (it's not going to get away till she passes, so it's not a short-term issue). The apt. building has a big parking lot closed by a remote controlled gate that can only be opened with the transmitter -the tiny one you hook to your keychain-. The nurse gets there by car and it is not possible to leave it on the side of the road so my grandfather is forced to go out, get to the ground floor, walk around the building and open the gate with the remote, this is really time-wasteful so I tried opening the gate from the balcony but the transmitter hasn't got nearly enough juice toget the signal to the receiver, on top of the fact that they're on the wrong side of the building.
So, I was set on buying something AC powered, with a seriously extended range, that might send the signal there, but could not find anything.
Could any of you educate me on ho to build / mod something like that?
thank you all in advance