I want to buy Nuki Opener but I am not sure if it will work with my intercom system.
My current intercom is connected with 3 wires - GND, microphone and speaker. I can buzz someone in by picking up the headset and pressing a button on the intercom during which the microphone is cut out. I am attaching pictures of my intercom and some connection diagrams. As far as I understood there is a bridge between the microphone wire and the buzzer.
In my intercom terminal 5, 8 and 9 are connected where 5 is GND, 8 is speaker and 9 is microphone.
Some additional info.
My Intercom is some generic brand. Also I do not care about being able to talk to the person infront of the door or receiving notifications when someone rings I just need to be able to open the door from my phone.
Attached is a picture of my intercom. Above the terminal the blue square is the button activated when the headset is unhooked. On the right just above the LED is the buzzer button, and next to the terminals are two jumpers which I think allow the wiring scheme to be 2+1.
